Title:
デジタル電子機器を持つ線形可変差動変圧器
Document Type and Number:
Japanese Patent JP2005527817
Kind Code:
A
Abstract:
Techniques for coupling with devices that convert displacements into differential voltages and improve the sensitivity of such devices. A transducer operates based on changes of inductances between primary and secondary of a transformer to produce a differential signal that includes a noninverted signal and an inverted signal. A switch receives the noninverted signal and the inverted signal. A processor creates a square wave signal for driving the transducer input, and also digitally creates an inverted transducer output. A filter operates to filter the square wave output from the processor to produce a substantially single frequency signal at a specified timing having a specified phase relationship relative to the first phase inversion signal based on instructions that are executed by the processor.
Inventors:
Bocker Dan
Prokoche Roger
Prokoche Roger
Application Number:
JP2004507768A
Publication Date:
September 15, 2005
Filing Date:
May 27, 2003
Export Citation:
Assignee:
Asylum Research Corporation
International Classes:
G01B7/14; G01B7/34; G01D5/22; G01Q10/04; G01Q10/06; G01Q60/24; (IPC1-7): G01D5/22; G01N13/10; G01N13/16
Domestic Patent References:
| JPH08219704A | 1996-08-30 | |||
| JPS6193909A | 1986-05-12 | |||
| JPH10242761A | 1998-09-11 | |||
| JPH06252717A | 1994-09-09 | |||
| JP2001228903A | 2001-08-24 | |||
| JPH0846432A | 1996-02-16 |
Attorney, Agent or Firm:
Patent business corporation Prospec patent office