Apparatus for measuring a characteristic of motion and methods for its manufacture are disclosed in which a sensor structure includes a support structure, and a mass suspended from such support structure by a spring connecting arrangement and electrical devices for measuring displacement of the...http://www.google.es/patents/US5852242?utm_source=gb-gplus-sharePatente US5852242 - Apparatus with mechanical and electric springs and method for its manufacture
Apparatus with mechanical and electric springs and method for its ...
