CN104615111A - Adjustable amplification factor type analogue multi-channel acquiring amplifying device and system - Google Patents
Adjustable amplification factor type analogue multi-channel acquiring amplifying device and system Download PDFInfo
- Publication number
- CN104615111A CN104615111A CN201510011771.5A CN201510011771A CN104615111A CN 104615111 A CN104615111 A CN 104615111A CN 201510011771 A CN201510011771 A CN 201510011771A CN 104615111 A CN104615111 A CN 104615111A
- Authority
- CN
- China
- Prior art keywords
- enlargement factor
- amplifier
- channel acquisition
- multiplying arrangement
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention provides adjustable amplification factor type analogue multi-channel acquiring amplifying device and system. The device comprises a rough adjusting amplifier, a fine adjusting amplifier, a shaper, an analog-digital converter and a controller; the input end of the rough adjusting amplifier is connected with an external detector; the input end of the fine adjusting amplifier is connected with the output end of the rough adjusting amplifier; the input end of the shaper is connected with the output end of the fine adjusting amplifier, and the shaper is used for shaping a signal outputted by the fine adjusting amplifier into a regular trapezoidal wave signal; the input end of the analog-digital converter is connected with the output end of the shaper; the controller is connected with a first amplification factor control unit and the control end of the first amplification factor control unit; the controller transmits the data acquired by the analog-digital converter to an external computer and adjusts the amplification factors of the first amplification factor control unit and a second amplification factor control unit according to a signal strength variation instruction sent by the computer, and therefore, the actual channel peak position corresponding to a standard calibration sample can be overlapped with the standard reference position. With the adoption of the device, the spectrum peak position can be calibrated within a large range, and therefore, the sample test precision can be ensured.
Description
Technical field
The present invention relates to signals collecting field, particularly a kind of simulation multi-channel acquisition multiplying arrangement and system with adjustable enlargement factor.
Background technology
In prior art, signal amplification factor adjustment relies on the adjustment of simulation potentiometer, and like this along with variation of ambient temperature, the aging large-scale spectrum peak drift inconvenience caused of components and parts adjusts, especially after instrument assembling shipment again.In addition, the mode of pure software is relied on to the calibration of spectrum peak drift by a small margin left and right translation is carried out to whole spectrum shape, cannot the change of reaction signal intensity really, affect sample test precision.Finally, operating voltage is too high, causes components and parts to generate heat excessive, cannot large-scale integrated, the parts density of riser level, reduces plate level size.
Summary of the invention
The invention provides one can internal calibration spectrum peak position on a large scale, ensures the simulation multi-channel acquisition multiplying arrangement with adjustable enlargement factor and the system of sample test precision.
For solving the problem, as one aspect of the present invention, providing a kind of simulation multi-channel acquisition multiplying arrangement with adjustable enlargement factor, comprising: coarse adjustment amplifier, its input end is connected with outside detector; Fine tuning amplifier, its input end is connected with the output terminal of coarse adjustment amplifier; Reshaper, its input end is connected with the output terminal of fine tuning amplifier, and the signal shaping for being exported by fine tuning amplifier becomes trapezoid ripple signal; Analog to digital converter, its input end is connected with the output terminal of reshaper; First enlargement factor control module, is connected with coarse adjustment amplifier, for controlling the enlargement factor of coarse adjustment amplifier; Second enlargement factor control module, with the connection of fine tuning amplifier, for controlling the enlargement factor of fine tuning amplifier; Controller, be connected with the control end of the first enlargement factor control module and the first enlargement factor control module, what analog to digital converter collected by controller passes to outside computer, and the enlargement factor of the first enlargement factor control module and the second enlargement factor control module is regulated according to the change in signal strength instruction that computer sends, overlap with standard reference position with the peak position, actual road making standard calibration samples corresponding.
Preferably, simulate multi-channel acquisition multiplying arrangement also to comprise: follower amplifier, detector is connected with coarse adjustment amplifier by follower amplifier.
Preferably, simulation multi-channel acquisition multiplying arrangement also comprises: Hi-pass filter, and coarse adjustment amplifier is connected with fine tuning amplifier by Hi-pass filter, and the spike pulse signal filtering through coarse adjustment amplifier becomes left and right to the normal signal become by Hi-pass filter.
Preferably, simulation multi-channel acquisition multiplying arrangement also comprises: Programmadle logic device, analog to digital converter is connected with controller by Programmadle logic device, and Programmadle logic device is for controlling the sampling of analog to digital converter, and the data collected by analog to digital converter pass to controller.
Preferably, simulate multi-channel acquisition multiplying arrangement and also comprise network interface for being connected with computer and USB interface.
Present invention also offers a kind of simulation multi-channel acquisition amplification system, comprising: above-mentioned simulation multi-channel acquisition multiplying arrangement; Detector, is connected, for photon energy is converted into electric signal with the coarse adjustment amplifier of simulation multi-channel acquisition multiplying arrangement; Computer, be connected with the controller of simulation multi-channel acquisition multiplying arrangement, after the data that controller passes out by computer are processed into spectrum graphic data, find the peak position, actual road that standard calibration samples is corresponding, then according to the deviation of peak position, actual road and standard reference position, the variable quantity of the signal intensity of standard reference position coincidence or coupling is followed in the peak position, actual road calculating standard model of sening as an envoy to, thus generates change in signal strength instruction.
Owing to have employed technique scheme, the present invention, on the basis of physical characteristics ensureing true reflected signal, is adjusted the enlargement factor of signal, directly adjusts signal intensity by the mode of software control hardware, can internal calibration spectrum peak position on a large scale, ensure sample test precision.Select the low power consumption high-precision electronic devices and components of main flow simultaneously, drastically increase the integrated level of plate level, be more conducive to the miniaturization of product.
Accompanying drawing explanation
Fig. 1 schematically shows structural representation of the present invention.
Reference numeral in figure: 1, coarse adjustment amplifier; 2, detector; 3, fine tuning amplifier; 4, reshaper; 5, analog to digital converter; 6, the first enlargement factor control module; 7, the second enlargement factor control module; 8, controller; 9, follower amplifier; 10, Hi-pass filter; 11, Programmadle logic device; 12, computer; 13, network interface; 14, USB interface.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Please refer to Fig. 1, the invention provides a kind of simulation multi-channel acquisition multiplying arrangement with adjustable enlargement factor, particularly suitable EXF field silicon-PIN, SDD, the signal of the high-resolution detectors such as silicon lithium amplifies and gathers, and comprising: coarse adjustment amplifier 1, its input end is connected with outside detector 2; Fine tuning amplifier 3, its input end is connected with the output terminal of described coarse adjustment amplifier 1; Reshaper 4, its input end is connected with the output terminal of described fine tuning amplifier 3, and the signal shaping for being exported by described fine tuning amplifier 3 becomes trapezoid ripple signal; Analog to digital converter 5, its input end is connected with the output terminal of described reshaper 4; First enlargement factor control module 6, is connected with described coarse adjustment amplifier 1, for controlling the enlargement factor of described coarse adjustment amplifier 1; Second enlargement factor control module 7, with the connection of described fine tuning amplifier 3, for controlling the enlargement factor of described fine tuning amplifier 3; Controller 8, be connected with the control end of described first enlargement factor control module 6 and described first enlargement factor control module 6, what described analog to digital converter 5 collected by described controller 8 passes to outside computer 12, and the enlargement factor of described first enlargement factor control module 6 and described second enlargement factor control module 7 is regulated according to the change in signal strength instruction that described computer 12 sends, overlap with standard reference position with the peak position, actual road making standard calibration samples corresponding.
Wherein, amplification and the minification that control first enlargement factor control module 6 and the second enlargement factor control module 7 adjust signal be responsible for by controller 8, and then the power of adjustment signal.
Owing to have employed technique scheme, the present invention, on the basis of physical characteristics ensureing true reflected signal, is adjusted the enlargement factor of signal, directly adjusts signal intensity by the mode of software control hardware, can internal calibration spectrum peak position on a large scale, ensure sample test precision.Select the low power consumption high-precision electronic devices and components of main flow simultaneously, drastically increase the integrated level of plate level, be more conducive to the miniaturization of product.The digitizing multiple track error of measuring accuracy of the present invention and foreign same type is within 5%; Plate level area is 1/3 of like product in the past; Reliability and stability increases substantially than product in the past of the same type.
Preferably, first enlargement factor control module 6 is digital controllable analog switch, can by control internal switch open with by, with outside resistor matrix permutation and combination, thus the enlargement factor of control amplifier, reach the object that signal significantly amplifies, often increase by 1 or minimizing 1, the signal of correspondence can be zoomed in or out 10% of whole amplitude.
Preferably, the second enlargement factor control module 7 is digital regulation resistance, is used for finely tuning the enlargement factor of amplifier, thus to the adjustment that signal amplitude is carried out by a small margin, often increases 1 or reduce 1, zooms in or out 0.5% to signal amplitude.
Preferably, controller 8 has 8 control signals, controls the first enlargement factor control module 6, adjust amplifier coarse adjustment multiple by these 8 control lines.
Preferably, controller 8 is connected by I2C bus with the second enlargement factor control module 7, to the instruction of the second enlargement factor control module 7 inner transmit amplifier fine setting multiple.
Preferably, described simulation multi-channel acquisition multiplying arrangement also comprises: follower amplifier 9, and described detector 2 is connected with described coarse adjustment amplifier 1 by described follower amplifier 9.
Preferably, described simulation multi-channel acquisition multiplying arrangement also comprises: Hi-pass filter 10, described coarse adjustment amplifier 1 is connected with described fine tuning amplifier 3 by described Hi-pass filter 10, and the spike pulse signal filtering through described coarse adjustment amplifier 1 becomes left and right to the normal signal become by described Hi-pass filter 10.
Preferably, described simulation multi-channel acquisition multiplying arrangement also comprises: Programmadle logic device 11, described analog to digital converter 5 is connected with described controller 8 by described Programmadle logic device 11, the data that described analog to digital converter 5 collects for controlling the sampling of described analog to digital converter 5, and are passed to described controller 8 by described Programmadle logic device 11.
Preferably, described simulation multi-channel acquisition multiplying arrangement also comprises network interface 13 for being connected with described computer 12 and usb 14.
Present invention also offers a kind of simulation multi-channel acquisition amplification system, comprising: above-mentioned simulation multi-channel acquisition multiplying arrangement; Detector 2, is connected, for photon energy is converted into electric signal with the coarse adjustment amplifier 1 of described simulation multi-channel acquisition multiplying arrangement; Computer 12, be connected with the controller 8 of described simulation multi-channel acquisition multiplying arrangement, after the data that described controller 8 passes out are processed into spectrum graphic data by described computer, find the peak position, actual road that standard calibration samples is corresponding, then according to the deviation of peak position, actual road and standard reference position, the variable quantity of the signal intensity of standard reference position coincidence or coupling is followed in the peak position, actual road calculating standard model of sening as an envoy to, thus generates described change in signal strength instruction.
Computer 12 processes digital signals into spectrum graphic data, and calculates the component content of sample, display content results, printed report; According to the peak position, road of calibration sample, send signal intensity adjustment instruction to MCU.
Below principle of work of the present invention is described.
After the data passed over are processed into spectrum graphic data by computer, find the peak position, actual road that standard calibration samples is corresponding.If find that there is deviation peak position, road with standard reference position, computer will calculate signal intensity should change how many, thus the peak position, actual road allowing to standard model overlaps or coupling with standard reference position.Calculate rear computer and will send signal amplification factor adjustment instruction to controller 8, that is to say signal intensity adjustment instruction.After controller 8 receives instruction, control first enlargement factor control module 6 and the second enlargement factor control module 7 will be removed, to adjust the enlargement factor of respective amplifier, thus to the adjustment that signal intensity is carried out significantly or by a small margin.After adjustment, then the data of collection are processed into spectral pattern, then contrast peak position, if there is deviation again to adjust, so come and go repeatedly, until the physical location at peak, standard model road overlaps with standard reference position.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. there is a simulation multi-channel acquisition multiplying arrangement for adjustable enlargement factor, it is characterized in that, comprising:
Coarse adjustment amplifier (1), its input end is connected with outside detector (2);
Fine tuning amplifier (3), its input end is connected with the output terminal of described coarse adjustment amplifier (1);
Reshaper (4), its input end is connected with the output terminal of described fine tuning amplifier (3), becomes trapezoid ripple signal for the signal shaping described fine tuning amplifier (3) exported;
Analog to digital converter (5), its input end is connected with the output terminal of described reshaper (4);
First enlargement factor control module (6), is connected with described coarse adjustment amplifier (1), for controlling the enlargement factor of described coarse adjustment amplifier (1);
Second enlargement factor control module (7), with the connection of described fine tuning amplifier (3), for controlling the enlargement factor of described fine tuning amplifier (3);
Controller (8), be connected with the control end of described first enlargement factor control module (6) and described first enlargement factor control module (6), what described analog to digital converter (5) collected by described controller (8) passes to outside computer (12), and the enlargement factor of described first enlargement factor control module (6) and described second enlargement factor control module (7) is regulated according to the change in signal strength instruction that described computer (12) sends, overlap with standard reference position with the peak position, actual road making standard calibration samples corresponding.
2. the simulation multi-channel acquisition multiplying arrangement with adjustable enlargement factor according to claim 1, is characterized in that, described simulation multi-channel acquisition multiplying arrangement also comprises:
Follower amplifier (9), described detector (2) is connected with described coarse adjustment amplifier (1) by described follower amplifier (9).
3. the simulation multi-channel acquisition multiplying arrangement with adjustable enlargement factor according to claim 1, is characterized in that, described simulation multi-channel acquisition multiplying arrangement also comprises:
Hi-pass filter (10), described coarse adjustment amplifier (1) is connected with described fine tuning amplifier (3) by described Hi-pass filter (10), and described Hi-pass filter (10) will become left and right to the normal signal become through the spike pulse signal filtering of described coarse adjustment amplifier (1).
4. the simulation multi-channel acquisition multiplying arrangement with adjustable enlargement factor according to claim 1, is characterized in that, described simulation multi-channel acquisition multiplying arrangement also comprises:
Programmadle logic device (11), described analog to digital converter (5) is connected with described controller (8) by described Programmadle logic device (11), the data that described analog to digital converter (5) collects for controlling the sampling of described analog to digital converter (5), and are passed to described controller (8) by described Programmadle logic device (11).
5. the simulation multi-channel acquisition multiplying arrangement with adjustable enlargement factor according to Claims 1-4, it is characterized in that, described simulation multi-channel acquisition multiplying arrangement also comprises network interface (13) for being connected with described computer (12) and USB interface (14).
6. simulate a multi-channel acquisition amplification system, comprising:
Simulation multi-channel acquisition multiplying arrangement described in claim 1 to 5;
Detector (2), is connected, for photon energy is converted into electric signal with the coarse adjustment amplifier (1) of described simulation multi-channel acquisition multiplying arrangement;
Computer (12), be connected with the controller (8) of described simulation multi-channel acquisition multiplying arrangement, after the data that described controller (8) passes out are processed into spectrum graphic data by described computer, find the peak position, actual road that standard calibration samples is corresponding, then according to the deviation of peak position, actual road and standard reference position, the variable quantity of the signal intensity of standard reference position coincidence or coupling is followed in the peak position, actual road calculating standard model of sening as an envoy to, thus generates described change in signal strength instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011771.5A CN104615111B (en) | 2015-01-09 | 2015-01-09 | Simulation multi-channel acquisition amplifying device and system with adjustable multiplication factor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011771.5A CN104615111B (en) | 2015-01-09 | 2015-01-09 | Simulation multi-channel acquisition amplifying device and system with adjustable multiplication factor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104615111A true CN104615111A (en) | 2015-05-13 |
| CN104615111B CN104615111B (en) | 2017-07-11 |
Family
ID=53149611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510011771.5A Active CN104615111B (en) | 2015-01-09 | 2015-01-09 | Simulation multi-channel acquisition amplifying device and system with adjustable multiplication factor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104615111B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020154387A1 (en) * | 2001-04-20 | 2002-10-24 | Kenji Mori | Gain equalizer, collimator with gain equalizer and method of manufacturing gain equalizer |
| CN1896728A (en) * | 2005-07-15 | 2007-01-17 | 天津市君贵科技有限公司 | Ray analyzer and its use |
| JP4460678B2 (en) * | 1999-07-09 | 2010-05-12 | 株式会社ケンウッド | Frequency analyzer |
| CN101713829A (en) * | 2009-12-22 | 2010-05-26 | 清华大学 | Rapid spectrum stabilization method and device for ray energy spectrometer |
| CN102954971A (en) * | 2012-11-05 | 2013-03-06 | 西安热工研究院有限公司 | Thermal power plant coal quality online monitoring system based on nature gamma spectrum analysis, and method thereof |
-
2015
- 2015-01-09 CN CN201510011771.5A patent/CN104615111B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4460678B2 (en) * | 1999-07-09 | 2010-05-12 | 株式会社ケンウッド | Frequency analyzer |
| US20020154387A1 (en) * | 2001-04-20 | 2002-10-24 | Kenji Mori | Gain equalizer, collimator with gain equalizer and method of manufacturing gain equalizer |
| CN1896728A (en) * | 2005-07-15 | 2007-01-17 | 天津市君贵科技有限公司 | Ray analyzer and its use |
| CN101713829A (en) * | 2009-12-22 | 2010-05-26 | 清华大学 | Rapid spectrum stabilization method and device for ray energy spectrometer |
| CN102954971A (en) * | 2012-11-05 | 2013-03-06 | 西安热工研究院有限公司 | Thermal power plant coal quality online monitoring system based on nature gamma spectrum analysis, and method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 周建斌: "全谱测量中的一种计算机稳谱方法", 《核电子学与探测技术》 * |
| 罗耀耀: "航空能谱系统中自动稳谱的研究与实现", 《中国优秀硕士学位论文全文数据库·基础科学辑》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104615111B (en) | 2017-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104833937B (en) | A kind of harmonic measure channel calibration method based on the high-precision Cosine Window interpolated FFT algorithms of MIR RSD | |
| CN106918795B (en) | Precision resister calibration system based on FPGA and the resistance calibrating method using system realization | |
| CN106645942B (en) | Low-cost high-precision embedded signal acquisition and analysis system and method | |
| CN106685421B (en) | Analog signal acquisition method and device | |
| CN103389410A (en) | Microwave power testing device based on universal serial bus (USB) interface | |
| CN106443563A (en) | Field environment based integrated calibrating and analytic device of digital electric energy meter | |
| CN102445608B (en) | Monitoring device and calibration method for electric energy quality | |
| CN103926550B (en) | A kind of device and method that electric power mutual-inductor is verified based on virtual instrument | |
| CN203772910U (en) | Oscilloscope with constant temperature change amplitude | |
| CN203881815U (en) | Simple high-precision DC electronic load | |
| CN104615111A (en) | Adjustable amplification factor type analogue multi-channel acquiring amplifying device and system | |
| CN106771550A (en) | A kind of single probe microwave power measurement device and method with display | |
| CN206479625U (en) | Deformation of transformer winding tester calibration device | |
| CN204924274U (en) | Capacitive sensor's analogue means | |
| CN103900742A (en) | Pressure transmitter | |
| CN202994618U (en) | Data acquisition unit for laser particle size analyzer | |
| CN105739366B (en) | Multifunctional intelligent power supply for electricity experiments | |
| CN110967548B (en) | Program-controlled variable resistor device with current detection function and working method | |
| CN203642941U (en) | Multipath sensing single-channel constant current measuring device | |
| CN2601395Y (en) | Digitized weighting module | |
| CN206209087U (en) | The accuracy detecting device of arc detector | |
| CN2914215Y (en) | PCI precision measurement control system | |
| CN203933408U (en) | Reaction type control circuit for EMC test power supply | |
| CN215416341U (en) | ICT and FCT test controller | |
| CN204115901U (en) | Electric thermo-couple temperature collection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 10th floor, No.2 factory building, 128 Shangnan East Road, Huangpu Community, Xinqiao street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Xifan instrument (Shenzhen) Co.,Ltd. Address before: 518000 No.2, east side, 5th floor, building D, tefa information port building, No.2 Kefeng Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN CFAN JINDUN TECHNOLOGY Co.,Ltd. |