Thermal type of flow rate sensor

Details Thermal type of flow rate sensor Thermal type of flow rate sensor

1992-02-19

1995-02-28

Chin, Stephen

Measuring and testing

Volume or rate of flow

Thermal type

7320427, G01F 168

Patent

active

053926463

ABSTRACT:
A thermal type of flow rate sensor includes heat-generating and temperature-compensating resistors R.sub.H and R.sub.C which are located within a fluid passage to measure the flow rate of the fluid. The linear term coefficient, .alpha., of the temperature coefficient of resistance of R.sub.C is made smaller than that of R.sub.H, whereby any temperature-compensating electric circuit and circuit control can all be dispensed with and the flow rate of a fluid can be precisely detected over a wide temperature range.

REFERENCES:
patent: 4344322 (1982-08-01), Plapp
patent: 4587844 (1986-05-01), Sumal
patent: 4688424 (1987-08-01), Handtmann et al.
patent: 4777820 (1988-10-01), Hecht et al.
patent: 4831876 (1989-05-01), Porth et al.
patent: 4916948 (1990-04-01), Inada et al.
patent: 5024083 (1991-06-01), Inada et al.
J. Phys. E: Sci. Instrum. 19, pp. 739-743.
"Sensor Technology", vol. 9, No. 10, Sep. 1989. Partial translation of p. 25.
SAE Paper No. 800468. "Hot Wire Air Mass Meter - A New Air Flow Meter for Gasoline Fuel Injection Systems", Rudolf Sauer.
SAE Paper No. 840137. "Bosch Mass Air Flow Meter: Status and Further Aspects", Jaihind S. Sumal and Rudolf Sauer.

Affiliated with

Also associated with

Rating

Thermal type of flow rate sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermal type of flow rate sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal type of flow rate sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-840390