Moisture sensor probe with at least two groups of resistive arra

Details Moisture sensor probe with at least two groups of resistive arra Moisture sensor probe with at least two groups of resistive arra

1988-01-19

1989-01-31

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324 65P, 340602, 733365, G01R 2702

Patent

active

048018651

ABSTRACT:
A probe for sensing the moisture content in a porous medium such as soil. The probe includes an array of a multiplicity of conductors and resistors formed on a substrate, with contact pins or electrodes connected to one end of each resistor, typically extending outwardly from the substrate. The resistor array is preferably divided into at least two groups, providing a separate output for each group. An appropriate voltage source and indicator means are connected to the resistor array in a circuit to provide indication of soil moisture. The transfer characteristic of the apparatus is such that the probe has improved sensitivity in the area of primary interest, that is at, between 80 and 100% of saturation.

REFERENCES:
patent: 2611643 (1952-09-01), Higgins
patent: 2636962 (1953-02-01), Bouyoucos
patent: 2721101 (1955-10-01), Richard, Jr.
patent: 2768028 (1956-10-01), Robinson
patent: 2781228 (1957-02-01), Anderson
patent: 2812976 (1957-11-01), Hasenkamp
patent: 2985827 (1961-05-01), Hasenkamp
patent: 3037704 (1962-06-01), Kinigsberg et al.
patent: 3182914 (1965-05-01), Hosier
patent: 3195816 (1965-07-01), Mercer
patent: 3631337 (1971-12-01), MacKinney
patent: 4522060 (1985-06-01), Murata et al.
patent: 4652811 (1987-03-01), Kwiat et al.
patent: 4734554 (1988-03-01), Tateda et al.

Affiliated with

Also associated with

Rating

Moisture sensor probe with at least two groups of resistive arra does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Moisture sensor probe with at least two groups of resistive arra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moisture sensor probe with at least two groups of resistive arra will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-179340