Measuring and testing – Vibration – By mechanical waves
Patent
1996-01-16
1998-02-10
Oda, Christine K.
Measuring and testing
Vibration
By mechanical waves
73629, 12866003, G01N 2906
Patent
active
057171424
ABSTRACT:
An apparatus to determine if an echo signal shown on a multi-echo analog display unit that is produced by an ultrasonic animal backfat measuring and analyzing instrument is an accurate indication of the depth of backfat under measurement. This display unit has a small hand retainable switch to freeze the signal under measurement to allow the analyzing portion of the instrument to send a signal to the display unit to inscribe a graphical overlay indication upon the echo signal. If the overlay indicator passes through the strongest one of the echo signals then the echo signal is thereby identified as being an accurate measurement of the animal backfat. If it does not, this indicates that something has interfered with this signal and it is therefore inaccurate.
REFERENCES:
patent: 4359055 (1982-11-01), Carlson
patent: 4359056 (1982-11-01), Carlson
patent: 4567768 (1986-02-01), Satoh
patent: 4646748 (1987-03-01), Fujii
patent: 4671289 (1987-06-01), Gainsley
patent: 4700711 (1987-10-01), Carlson
patent: 4779623 (1988-10-01), Suminomo
Oda Christine K.
Stevenson John Shaw
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