Flow amount measuring apparatus

Details Flow amount measuring apparatus Flow amount measuring apparatus

2005-01-11

2005-01-11

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Thermal type

C073S204260

Reexamination Certificate

active

06840102

ABSTRACT:
The flow amount measuring apparatus has two detecting portions for generating signal indicative of flow amount respectively. The outputs of two detecting portions are subject to a differential amplification to obtain large output signal and low amplitude ratio. A plurality of resistors providing the detecting portion may be formed on a single substrate. The output characteristic of the flow amount measuring apparatus can be adjusted by adjusting the gain and the offset. The offset includes a temperature dependent first offset component and a constant second offset component. The first offset component varies in accordance with temperature of fluid so as to reduce temperature dependency of the output characteristic. As a result, it is possible to measure flow amount accurately.

REFERENCES:
patent: 5036702 (1991-08-01), Akamatsu et al.
patent: 5122756 (1992-06-01), Nelson
patent: 6070462 (2000-06-01), Igarashi et al.
patent: 0995975 (2000-04-01), None
patent: 60-119037 (1985-06-01), None
patent: 02-243965 (1990-09-01), None
patent: 5-312613 (1993-11-01), None
patent: 5-312616 (1993-11-01), None
patent: 9-243423 (1997-09-01), None

Affiliated with

Also associated with

Rating

Flow amount 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 Flow amount measuring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow amount measuring apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3376095