测量大功率空化超声换能器振动幅度的简单方法：使用热电偶。
Simple method for measuring vibration amplitude of high power airborne ultrasonic transducer: using thermo-couple.
机构信息
Mechanical Engineering Faculty, Amirkabir University of Technology, 424, Hafez Avenue, Tehran, Iran.
Mechanical Engineering Faculty, Amirkabir University of Technology, 424, Hafez Avenue, Tehran, Iran.
出版信息
Ultrasonics. 2014 Mar;54(3):821-5. doi: 10.1016/j.ultras.2013.10.006. Epub 2013 Nov 6.
Vibration amplitude of transducer's elements is the influential parameters in the performance of high power airborne ultrasonic transducers to control the optimum vibration without material yielding. The vibration amplitude of elements of provided high power airborne transducer was determined by measuring temperature of the provided high power airborne transducer transducer's elements. The results showed that simple thermocouples can be used both to measure the vibration amplitude of transducer's element and an indicator to power transmission to the air. To verify our approach, the power transmission to the air has been investigated by other common method experimentally. The experimental results displayed good agreement with presented approach.
换能器元件的振动幅度是控制在不使材料产生屈服的情况下实现最佳振动的高功率空芯换能器性能的影响因素。通过测量提供的高功率空芯换能器换能器元件的温度来确定元件的振动幅度。结果表明，简单的热电偶既可以用来测量换能器元件的振动幅度，也可以作为向空气传输功率的指示。为了验证我们的方法，通过实验用其他常用方法研究了向空气传输的功率。实验结果与提出的方法吻合较好。
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