Linearized digital thermometer

Details Linearized digital thermometer Linearized digital thermometer

1978-01-05

1979-07-24

Swisher, S. Clement

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73362AR, 364557, G01N 720

Patent

active

041618807

ABSTRACT:
A digital thermometer uses a microprocessor computer containing stored information relating to the response characteristics of a transducer to supply a measurement of temperature. The transducer is preferably a thermistor whose resistance varies in a predetermined and nonlinear relation to its temperature. The microprocessor computer includes a read-only memory which has been preprogrammed with piece-wise linearized information approximating the nonlinear relation of resistance and temperature of the thermistor. A current source develops a voltage across the thermistor which is related to the temperature of the thermistor. The voltage across the thermistor is converted into a digital signal, and the digital signal is related to the piece-wise linearized information stored. The temperature equivalent is calculated from a first order algebraic equation determined by the relationship of the digital signal to the stored information.

REFERENCES:
patent: 2987704 (1961-06-01), Gimple
patent: 3699318 (1972-10-01), Underkoffler
patent: 4022063 (1977-05-01), West

Affiliated with

Also associated with

Rating

Linearized digital thermometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Linearized digital thermometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linearized digital thermometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1284675