| 摘要 |
PURPOSE: An ultrasonic inspection device for evaluating quality of fruits is provided to effectively injecting an ultrasonic wave to curved surfaces of fruits and uniformly maintain contact pressure between transducers and an inspecting element, thereby improving the reliability of quality evaluation. CONSTITUTION: An ultrasonic inspection device for evaluating quality of fruits includes a waveform analyzing computer(10) for performing various signal processing and evaluating quality of fruits by using software, a high output ultrasonic pulse transmitting and receiving device(11) for outputting an analogue ultrasonic signal by a transmitter in response to a measuring trigger signal of a receiver, and outputting an analogue ultrasonic response signal having an RF waveform by amplifying and filtering the response signal input from the receiver, a transmitting transducer(12) for providing the analogue ultrasonic signal while repeating expansion and retraction by reverse-piezo electric effect, a horn(13) for injecting the analogue ultrasonic signal to an object to measure, an inspecting element(14) permeating the analogue ultrasonic signal to fruits difficult for maintaining a uniform contact pressure manually, a receiving transducer(15) for providing an analogue ultrasonic response signal to the high output ultrasonic pulse transmitting and receiving device after performing piezo-electric function, a contact pressure controlling pneumatic element(16) maintain a uniform contact force between the transmitting and receiving transducers and the inspecting element, and an A/D converter(17) for outputting a digital ultrasonic response signal having information of the inspecting element.
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