Apparatus and method for evaluating performance of ultrasonic transducer

Abstract

An apparatus for evaluating the performance of an ultrasonic transducer, comprises a transducer assembly which transmits / receives ultrasonic waves by having an ultrasonic transducer and an acoustic medium; a storage unit which stores a reference signal value indicative of the performance of the ultrasonic transducer; and a processing unit which emits the ultrasonic waves by controlling the transducer assembly, receives a response (echo) signal thereto, measures magnitude or energy amount of the response signal, and compares a measured value to the reference signal value stored in the storage unit, thereby evaluating the performance of the ultrasonic transducer.

Description

technical field [0001] The present disclosure relates to ultrasonic transducers for generating ultrasonic waves and receiving response signals, and in particular to methods for evaluating the performance of therapeutic ultrasonic transducers to check that the performance of said therapeutic ultrasonic transducers is degraded compared to an initial state A number of devices and methods, and a recording medium for recording the methods. Background technique [0002] Ultrasonic waves are used in medical fields such as image diagnostic equipment, ultrasonic therapy equipment, ultrasonic cleaning equipment, or various device diagnostic equipment, and thus techniques for measuring and controlling the output level of ultrasonic transducers are required. [0003] In the past, to measure the acoustic output of an ultrasonic transducer, a radiation force balance method, a planar scan method, a calorimeter method, etc. have been used. [0004] The radiation force balance method is a m...

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Problems solved by technology

[0012] The purpose of this disclosure is to solve the problem that the operator cannot simply check the output degradation of the ultrasonic transducer for treatment in the laboratory without high configuration in the actual medical environment, so as to overcome the following limitations: due to the replacement of the ultrasonic transducer The time is determined only by the number of treatments of the transducer that guarantees the output specified by the ultrasonic transducer manufacturer regardless of the actual output of the ultrasonic transducer, so the performance of the ultrasonic transducer and the appropriate replacement time cannot be known

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