Title:
Pade近似を基にした補償を使用し励起供給モジュールを備えるリアクタンス型センサ
Document Type and Number:
Japanese Patent JP4599393
Kind Code:
B2
Abstract:
Reactive sensors typically exhibit nonlinear response. Systems and methods are disclosed for compensating for the nonlinear and/or temperature dependent behavior of reactive sensors and for calibrating the post-compensation output signals relative to known samples of the physical parameter under measure. One class of embodiments includes a housing containing at least part of a reactive sensor, a monolithic integrated circuit and a timing reference. The integrated circuit includes a waveform generator for generating a sensor exciting signal, a detector for detecting the response of the sensor to the combination of the exciting signal and the under-measure physical parameter, a temperature compensating unit and the Pade Approximant nonlinearity compensating unit. Coefficients of latter two units are tuned to compensate for nonlinearity and temperature sensitivity.
Inventors:
Jose Marcos Lalaia
Niwa Masahisa
Robert pee marquee
Jose Gee Taveira
Niwa Masahisa
Robert pee marquee
Jose Gee Taveira
Application Number:
JP2007500843A
Publication Date:
December 15, 2010
Filing Date:
June 03, 2005
Export Citation:
Assignee:
AMI Semiconductor Inc.
Panasonic Electric Works Co., Ltd.
Panasonic Electric Works Co., Ltd.
International Classes:
G01D5/12; G01C19/00; G01C25/00; G01D3/02; G01D18/00; G01F25/00; G06F19/00
Domestic Patent References:
| JP57059115A | ||||
| JP57014999A | ||||
| JP60249069A | ||||
| JP3501885A | ||||
| JP63195517A | ||||
| JP5280996A | ||||
| JP2004510169A |
Attorney, Agent or Firm:
Keisei Nishikawa