Ultrasonic delay line matrix switch check system
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United States of America Patent
Stats
-
Jun 23, 1987
Grant Date -
N/A
app pub date -
Jul 26, 1985
filing date -
Dec 16, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The equipment in this invention provides an ultrasound diagnostic equipment with a matrix switch checking means configured in a combined use with means commonly furnished to said device heaving a built-in test sequencer, whereby taps on the delay line is selected in due order from one end of said taps for each channel of the matrix switch to input a checking signal to that channel from a transducer circuit every time these taps are selected; as a result a signal obtained from the delay-line output terminals is shown on a display screen of a display device as a mimic echo signal to determine the presence or absence of any fault of switching elements in the relevant channel of the matrix switch based on a mimic echo image pattern shown on the display screen.
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