Method for obtaining circuit delay time in ultrasonic measuring device
A technology of circuit delay and measurement device, applied in the field of ultrasonic measurement, can solve the problem of inability to obtain the propagation time of ultrasonic signals
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Embodiment 1
[0030] Embodiment 1: The ultrasonic measuring device includes a controller, a timer, a signal sending module, a signal receiving module, a switch, a first ultrasonic transducer and a second ultrasonic transducer, and the signal sending module is mainly output by sequentially connected pulse signals circuit, signal conditioning circuit and ultrasonic driving circuit, the signal receiving module is mainly composed of signal receiving circuit, the switch has a first port, a second port, a third port and a fourth port, the controller is equipped with a memory, the controller is respectively Connected with the timer, pulse signal output circuit, signal receiving circuit, and switch, the controller controls the timer to start timing or end timing, and read the count value in the timer after the timer ends and store the count value in the memory , the controller controls the pulse signal output circuit to output the excitation pulse signal, the controller reads the pulse signal extrac...
Embodiment 2
[0047] Embodiment 2: Repeat the steps ①~⑩ described in Embodiment 1 N times to realize the same measurement of N groups, and obtain the equation A 11 = T 1 + TD + T 2 A 21 = T 3 + TD + T 4 A 31 = T 1 + 2 TD + T 4 ...
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