Device for measuring variable with automatic compensation for of

Details Device for measuring variable with automatic compensation for of Device for measuring variable with automatic compensation for of

1982-11-17

1987-06-09

Krass, Errol A.

Boots, shoes, and leggings

731182, 324 73AT, 36443106, 364550, 374144, G01K 1900, G06F 776

Patent

active

046725660

ABSTRACT:
A measurement device for measuring a physical property such as temperature difference, displacement, pressure, fluid flow rate, etc. comprises: (a) an amplifying means which receives and amplifies a voltage signal corresponding to a detected physical property; (b) a reference voltage generator which generates and applies a reference voltage to the amplifying means at a predetermined time; (c) a memory which stores the output voltage signal from the amplifying means when the reference voltage generator applies the reference voltage to the amplifying means; and (d) a calculating means which outputs at least one command signal to the reference voltage generator to apply the reference voltage to the amplifying means and to the memory to store the output voltage of the amplifying means into a specified memory location thereof at the predetermined time and calculates the value of the desired physical property from the current output voltage of the amplifying means with reference to the stored voltage value in the memory, whereby an accurate physical property measurement can be made by compensating for individual differences and deterioration of the characteristics of the measurement device.

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