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US 6,486,673 B1Granted
Segmented field dielectrometer
AssigneeJENTEK Sensors, Inc.
InventorsNeil J. Goldfine, Darrell E. Schlicker, Markus Zahn, Wayne D. Ryan, Yanko Sheiretov, Andrew Washabaugh
Life of this patent
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Abstract
A dielectrometer with a sensor face that carries an excitation electrode driven with a varying voltage. At least two sensing electrodes and a guard electrode are also carried by the sensor face. The sensing electrodes are adapted for single or multiple penetration depth measurements into a test material. The guard electrode surrounds the sensing electrodes and is at about the same voltage as the sensing electrodes.
Claims19
A dielectrometer apparatus comprising:
- a sensor face;
- an excitation electrode carried on the sensor face and driven with a varying voltage;
- at least two sensing electrodes carried by the sensor face, the sensing electrodes being adapted for single or multiple penetration depth measurements into a test material;
- and
- a guard electrode on the sensor face surrounding the sensing electrodes, the guard electrode being at about the same voltage as the sensing electrodes.
2 more elements
A dielectrometer apparatus comprising:
- a sensor face;
- an excitation electrode carried on the sensor face and driven with a varying voltage;
- at least two sensing electrodes carried by the sensor face, the sensing electrodes being adapted for single or multiple penetration depth measurements into a test material;
- and
- a guard electrode on the sensor face surrounding the sensing electrodes, the guard electrode being at about the same voltage as the sensing electrodes,
- the guard and sensing electrodes together encompassing the excitation electrode, and connections being made to the excitation, sensing and guard electrodes through lead paths extending from the electrodes to respective connector pads.
3 more elements
Dependencies are inferred from the claim text.