Integrated flow sensor

Measuring and testing – Volume or rate of flow – Thermal type

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

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

     

Profile ID: LFUS-PAI-O-654639

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.