Determining moisture content of a medium

Details Determining moisture content of a medium Determining moisture content of a medium

1988-03-02

1989-07-11

Cuchlinski, Jr., William A.

Measuring and testing

Moisture content or absorption characteristic of material

73 75, 374 45, G01N 2556

Patent

active

048459780

ABSTRACT:
A probe for determining moisture content of a medium includes a heating element and a temperature sensing element which is spaced from the heating element. The heating element within a tube is energized for a period of time, and the temperature change of the sensing element after that time is a function of moisture content within a range of tolerance which is acceptable for agricultural and most other purposes. Temperature readout means are coupled to the probe to identify the temperature at that time and identify moisture content of the medium as a function of temperature.

REFERENCES:
patent: 2718141 (1955-09-01), Richards
patent: 2793527 (1957-05-01), Turner, Jr. et al.
patent: 3435400 (1969-03-01), Beckman
patent: 3477282 (1969-11-01), Ohlheiser
patent: 3491595 (1970-01-01), Griffeth
patent: 3981175 (1976-09-01), Hammond, III et al.
patent: 4718774 (1988-01-01), Slough
Sweat et al., "Automation of a Minature Thermal Conductivity Probe", Conference: Advance in Thermal Conductivity, Lake Ozark, Mo., U.S.A. Nov. 5-7, 1974.

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