Automatic transducer selection system for pressure measurement

Details Automatic transducer selection system for pressure measurement Automatic transducer selection system for pressure measurement

1993-05-14

1994-08-16

Woodiel, Donald D.

Measuring and testing

Fluid pressure gauge

Mounting and connection

73724, 73726, 73727, 73728, G01L 904, G01L 910, G01L 912

Patent

active

RE0346942

ABSTRACT:
An automatic transducer selection system for fluid pressure measurement functions by using two or more transducers wtih different measurement ranges [of accuracy] and also by incorporating comparator circuitry which automatically selects the transducer reading nearer to full scale. An electronic signal or output from the comparator is preferably nested such that a continuous voltage is generated in accordance with the fluid pressure being measured, this making the system appear to function as a single transducer with a wide measurement range of high accuracy.

REFERENCES:
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Seiff et al., Atmosphere Structure Instruments on the Four Pioneer Venus Entry Probes, Jan. 1980, IEEE Transactions on Geoscience & Remote Sensing, vol. GE-18, pp. 105-111.
Sandford, Accurate Pressure Transducers Keep Productivity High, Oct. 1976, Instruments & Control Systems, vol. 49, pp. 39-46.

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