Status report on electronic identification. [Subdermally-implanted temperature indicating transponder for livestock]

Conference · Wed Jan 01 04:00:00 EST 1975

OSTI ID:7366954

Holm, D M; Bobbett, R E; Koelle, A R; Landt, J A; Sanders, W M; Depp, S W; Hensley, J C

A significant milestone was passed in September 1975, with the successful operation of a subdermally-implanted, temperature-indicating transponder having hybrid circuitry. This transponder had no batteries and showed that an implant transponder could be powered by an external microwave beam and transmit encoded temperature information back to the receiver. The encoding of temperature was done because it was very similar to identification, but required much less circuitry. The microwave power levels at the animal skin were well within established safety limits. Additional work needs to be performed on optimizing circuitry and antenna design. (auth)

• Research Organization: Los Alamos Scientific Lab., N.Mex. (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7366954
• Report Number(s): LA-UR-75-2312; CONF-751161-1
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
551000 -- Physiological Systems
59 BASIC BIOLOGICAL SCIENCES
ANIMALS
ANTENNAS
COMMUNICATIONS
DATA TRANSMISSION
DOMESTIC ANIMALS
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
EQUIPMENT
MICROWAVE RADIATION
MONITORING
PERFORMANCE
RADIATIONS
TELEMETRY
TEMPERATURE MONITORING
TRANSDUCERS