Integrated flow sensor

Details Integrated flow sensor Integrated flow sensor

1998-07-23

1999-10-12

Patel, Harshad

Measuring and testing

Volume or rate of flow

Thermal type

7320415, G01F 168

Patent

active

059658134

ABSTRACT:
A flow sensor comprises a heater module, a fluid temperature sensor and a Wheatstone bridge module. In the heater module, a heater is disposed very close to a heater temperature sensor and an insulation layer electrically isolates these two elements. The heater and the heater temperature sensor are disposed together on a floating membrane positioned normally to the fluid flow. The Wheatstone bridge module regulates electric current supplied to the heater, based on a constant temperature difference between the heater and the fluid, and provides voltage information of the electric current. A microprocessor converts the voltage information into velocity of fluid to be measured. A bypass channel is designed to adjust flow impedance of the fluid. Further disclosed is a fluid temperature sensor with the same design of the heater module whereby the factor of flow direction of the fluid may be ignored.

REFERENCES:
patent: 4326412 (1982-04-01), Kobayashi et al.
patent: 5024083 (1991-06-01), Inada et al.
patent: 5186051 (1993-02-01), Stecher et al.
patent: 5353638 (1994-10-01), Marek
patent: 5392646 (1995-02-01), Yajima
patent: 5423210 (1995-06-01), Uchiyama
patent: 5423212 (1995-06-01), Manaka
patent: 5623097 (1997-04-01), Horiguchi et al.

Affiliated with

Also associated with

Rating

Integrated flow 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 Integrated flow sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated flow sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-654639