Importance

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Abstract

The ultrasonic quality sensor includes a probe assembly, a control module, an ultrasonic probe base, a probe filter, a temperature sensor, and a probe top cover; The probe assembly consists of a transmitting and a receiving transducer to form a face-to-face layout and the ultrasonic flight distance h, h≤(V0*V50)*T0/(V50−V0), where T0 is the pulse width, V0 is the ultrasonic speed at 4° C. in water, V50 is the ultrasonic speed at 50% urea and 70° C. Sampling timing tb∈[t0, t0+C], where C=(N+1)*T0, t0=h/V0, N is the number of ultrasonic actuating pulses. tr and td are first rising edge trigger timing and first falling edge trigger timing; As long as td−tr exceeds a certain percentage of T0, the chip can catch timing tf after tb of wave rising edge crosses zero. The cylindrical ring has small holes to carry away bubbles during high-temperature stages.

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First Claim