Hygrometry probe

Details Hygrometry probe Hygrometry probe

1983-03-28

1985-03-12

Goldberg, Gerald

Measuring and testing

Gas analysis

Moisture content or vapor pressure

364556, G01W 102

Patent

active

045037078

ABSTRACT:
A probe has a housing which includes a moisture sensor for providing a non-linear moisture-related signal and a signal processor for linearizing the moisture-related signal and converting the signal to a digital output signal indicative of a moisture measurement. Temperature and pressure sensors are also included and provide a temperature-related signal and a pressure-related signal in the probe. The signal processor processes the moisture-related signal as a function of one or both of the temperature and pressure-related signals and provides another moisture-related output signal. The signal processor includes a serial data output for transmitting the digital moisture-related signal and digital temperature and pressure-related signals along a signal data transmission line.

REFERENCES:
patent: 3075385 (1963-01-01), Stover
patent: 3121853 (1964-02-01), Jason et al.
patent: 3523244 (1970-08-01), Goodman et al.
patent: 3539917 (1970-11-01), Chleck
patent: 3987676 (1976-10-01), Bennewitz
patent: 4319485 (1982-03-01), Terada et al.
patent: 4379406 (1983-04-01), Bennewitz et al.
Kammermaier, J., et al., Electronic Humidity Sensor with Linear Characteristic, Siemens Comp., vol. XV, No. 1, pp. 22-26, Mar. 1980.
Whitehaus, G., Linearizing Relative Humidity Measurements, Instr. & Control Sys., pp. 72-73, Sep. 1972.

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