Measuring and testing – Volume or rate of flow – Thermal type
Patent
1986-11-24
1988-04-05
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Thermal type
G01F 168
Patent
active
047350997
ABSTRACT:
A direct-heated gas-flow measuring apparatus including a measuring tube disposed in the gas stream, a film resistor for generating heat and detecting the temperature thereof, and a feedback control circuit for controlling the heat generated by the film resistor so that the temperature of the film resistor is a predetermined value. Provided in a supporting portion of the film resistor for supporting it to the measuring tube is an aperture for throttling the heat transfer thereof.
REFERENCES:
patent: 3900819 (1975-08-01), Djorup
patent: 3996799 (1976-12-01), van Putten
patent: 4196622 (1980-04-01), Peter
patent: 4294114 (1981-10-01), Lauterbach
patent: 4320655 (1982-03-01), Kammermaier et al.
patent: 4341114 (1982-07-01), Plapp
patent: 4345465 (1982-08-01), Gruner et al.
patent: 4399698 (1983-08-01), Hiromasa et al.
patent: 4412449 (1983-11-01), Eiermann et al.
patent: 4472239 (1984-09-01), Johnson et al.
patent: 4498337 (1985-02-01), Gruner
patent: 4501144 (1985-02-01), Higashi et al.
patent: 4538456 (1985-09-01), Gneiss et al.
patent: 4542650 (1985-09-01), Renken et al.
patent: 4554829 (1985-11-01), Sumal
Hattori Tadashi
Huzino Seizi
Kanehara Kenji
Miura Kazuhiko
Ohta Minoru
Goldstein Herbert
Nippon Soken Inc.
LandOfFree
Direct-heated gas-flow measuring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Direct-heated gas-flow measuring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct-heated gas-flow measuring apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2227210