Measuring device for the wire-free measurement of temperature

Details Measuring device for the wire-free measurement of temperature Measuring device for the wire-free measurement of temperature

1996-05-16

1997-10-28

Hofsass, Jeffery

Communications: electrical

Continuously variable indicating

Condition responsive

34087018, 34087026, G08C 1912

Patent

active

056821492

ABSTRACT:
The invention relates to a measuring device for the wire-free measurement of temperatures, in particular for the measurement of the body temperature of animals. A transponder is injected as a probe in each animal with the aid of a hollow needle, which is supplied wire-free by a transmitter/receiver and which modulates the interrogation field with two or more abruptly changing tones in a cyclic sequence.
The time duration of the tones as well as the frequency of the tones contain the desired information in coded form.
By monitoring individually and continuously the body temperature of useful and/or breeding animals in the animal shed or on the pasture, it is possible to detect in time completely automatically the symptoms of an animal becoming ill and appropriate measures can be taken in order to keep the costs as low as possible in the animal husbandry business.

REFERENCES:
patent: 4075632 (1978-02-01), Baldwin et al.
patent: 5252962 (1993-10-01), Urbas et al.

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