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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4590472 B1

PDFFull Text
Date of Patent:
May. 20, 1986

Filed:

Dec. 01, 1982

Analog signal conditioner for thermal coupled signals

Applicant:
Inventors:

Michael R Benson, San Jose, CA (US);

William D Hill, San Jose, CA (US);

Assignee:

General Electric Company, San Jose, CA (US);

Attorneys:

James, Jr.; Ivor J.

Turner; Samuel E.

Simkins; Raymond G.

Primary Examiner:

James J Groody

Int. Cl.
CPC ...
G08C / ; G08C / ;
U.S. Cl.
CPC ...
34087004 ; 34087017 ; 340514 ; 374133 ;
Abstract

The present invention described a signal conditioner. A thermocouple produces a signal that is present at a summing node input of a conditioning amplifier. The conditioning amplifier has a plurality of selectable gain values by which amplifier sensitivity may be varied to complement that of the thermocouple. Provision is made at the summing node input of the summing amplifier for thermocouple cold junction compensation and range offset. The present invention finds application in monitoring thermal conditions in an industrial process, such as a nuclear reactor. The high degree of precision and reliability required in such processes is maintained by including a test circuit which provides a selectable test pulse to the summing node input of the conditioning amplifier. One aspect of the present invention is the provision for testing during actual circuit operation in a process and irrespective of selected conditioning amplifier sensitivity. An additional aspect of the present invention is the inclusion of a summing node wherein various characteristics of conditioning amplifier contour may be independently adjusted without degradation or interference of one characteristic with the other.

Find Patent Forward Citations

Benson, Michael. (1986). Analog signal conditioner for thermal coupled signals (U.S. Patent No. 4590472). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4590472

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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