Pressure transducer using integrated circuit elements

Details Pressure transducer using integrated circuit elements Pressure transducer using integrated circuit elements

1983-09-29

1985-12-10

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307297, 307310, 73708, 338 3, 323907, G01L 906

Patent

active

045582386

ABSTRACT:
A pressure transducer comprises a pressure sensor including a bridge connection of gauging resistors formed on a semiconductor substrate, and a power supply connected to the pressure sensor for driving it and basically acting as a constant current source. The power supply includes at least two transistors formed on the semiconductor substrate. One of the transistors provides a collector current which is less in temperature-dependency relative to that of the other transistor, and the other transistor has a collector circuit connected to the pressure sensor and provides a collector current corresponding to a sum of a substantially temperature-dependent current and a substantially temperature-independent current. A ratio of the temperature-dependent current to the temperature-independent current is adjusted by selecting operation characteristics of the two transistors such that a temperature characteristic of the collector current of the other transistor is substantially inversely proportional to a temperature characteristic of the output of the pressure sensor when it is driven with a constant voltage.

REFERENCES:
patent: 3886799 (1975-06-01), Billette et al.
patent: 4233848 (1980-11-01), Sato et al.
patent: 4300395 (1981-11-01), Shirouzu et al.
patent: 4313082 (1982-01-01), Neidorff
patent: 4362060 (1982-12-01), Okayama et al.
patent: 4422033 (1983-12-01), Minner et al.
patent: 4476726 (1984-10-01), Kurtz et al.
patent: 4479708 (1984-10-01), Tokuda

Affiliated with

Also associated with

Rating

Pressure transducer using integrated circuit elements does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure transducer using integrated circuit elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure transducer using integrated circuit elements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-60799