Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1989-05-01
1990-08-07
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
3072966, 307359, 307261, H01L 2716
Patent
active
049470574
ABSTRACT:
A mass fluid flow sensor is disclosed which utilizes a sensing bridge circuit to develop a sense (control) signal related to fluid flow. A fluid temperature variable resistor, separate from said bridge circuit, is utilized to implement temperature compensation so that a desired output signal is a function of sensed fluid flow, but is less dependent on fluid temperature than the sense (control) signal provided by the bridge circuit. A resistor in the bridge circuit is selected such that the sense (control) signal provided by the bridge circuit has a rate of change as a function of flow rate substantially independent of fluid temperature, but this sense signal still varies as a function of fluid temperature. This permits fluid temperature compensation of the bridge sense signal in a noncomplex and cost effective manner. An improved adjustable circuit (36-41) is provided for producing a desired temperature variable output signal (V.sub.os).
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patent: 4478527 (1984-10-01), Mergner
patent: 4495472 (1985-01-01), Dwarakanath
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Alexander Steven W.
Czarnocki Walter S.
Harper Peter W.
Moran Kevin S.
Melamed Phillip H.
Motorola Inc.
Zazworsky John
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