Measuring and testing – Simulating operating condition – Marine
Patent
1987-08-12
1988-12-27
Goldstein, Herbert
Measuring and testing
Simulating operating condition
Marine
7320419, G01F 168
Patent
active
047931760
ABSTRACT:
A resistor main body of a hot film exothermic resistor includes a ceramic body with leads bonded to both end portions thereof, a platinum film body formed on a ceramic body, a spiral trimming groove formed in the platinum film body, and a glass material overcoated on the platinum film body and the ceramic body. The resistor main body projects in the upstream direction of the flow of such that the ratio of a length l.sub.1 of the resistor main body to the diameter d.sub.1 of the resistor main body is 25>l.sub.1 /d.sub.1 >14, and the leads are bent adjacent both end portions. The response speed characteristics, contamination preventing capability and temperature dependency of the hot film exothermic resistor is improved over conventional devices, and the level of noise in the output signal therefrom can be reduced over conventional devices.
REFERENCES:
patent: 4513615 (1985-04-01), Sato et al.
patent: 4562731 (1986-01-01), Nishimura et al.
Sato Kanemasa
Ueno Sadayasu
Goldstein Herbert
Hitachi , Ltd.
LandOfFree
Hot film type air flow meter having a temperature sensing exothe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hot film type air flow meter having a temperature sensing exothe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot film type air flow meter having a temperature sensing exothe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-860769