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US 4,998,826 AGranted
Agricultural infrared thermometer
AssigneeTelatemp Corporation
InventorsDon E. Wood, Wayne Scharf
Life of this patent
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AssigneeTelatemp Corporation
InventorsDon E. Wood, Wayne Scharf
Estimating the term…
An infrared thermometer has a field of view selected so that the temperature of the crop growing in a field is accurately measured. The infrared thermometer may be mounted on a support pole in a field to substantially continuously monitor the foliage temperature of the growing crop. In one preferred embodiment, the infrared thermometer comprises and instrument housing structure provided with an infrared telescope mounted on a turntable that scans through an angle of the field, while an electronic circuit simultaneously integrates the output of the infrared telescope. The angle to be scanned is selected by the user in accordance with his needs. In another embodiment, the infrared thermometer comprises a novel sensor head block including an aperture which provides a wide, elongated oval field of view for an infrared sensor provided therein. In both embodiments, the elongated oval field of view has a width that is at least four times its height. The elongated oval field of view is selected to substantially block the infrared radiation emitted by background sources such as the sky and the ground.
An agriculture thermometer for measuring the temperature of a crop growing in a field, the crop emitting infrared radiation in an amount dependent upon the temperature of the crop, said thermometer comprising:
An agricultural thermometer for measuring the temperature of a crop growing in a field, said thermometer comprising:
A method of measuring crop temperature, comprising the steps of:
Dependencies are inferred from the claim text.