Method of and apparatus for measuring strength of ultrasonic waves

摘要

A method of and an apparatus for measuring the strength of ultrasonic waves are provided. They are capable of measuring the strength of ultrasonic waves easily and at low cost without using a sound pressure meter. The ultrasonic wave strength measuring apparatus has a particle source soaked in a cleaning liquid, an oscillator to generate the ultrasonic waves whose strength is going to be measured to vibrate the particle source so that particles are eluted from the particle source into the cleaning liquid, a counter to count the number of particles in the cleaning liquid, and an operation unit to find the strength of the applied ultrasonic waves based on the counted number of particles.

主权项

1. A method of measuring the strength of ultrasonic waves for use with an ultrasonic cleaner that applies ultrasonic waves to an object soaked in a cleaning liquid in a cleaning tank and thereby cleans the object, the method comprising steps of:
vibrating a particle source soaked in the cleaning liquid with the ultrasonic waves whose strength is going to be measured when the object is not soaked in the cleaning fluid, so that particles are eluted from the particle source into the cleaning liquid; counting a number of particles in the cleaning liquid; and finding the strength of the ultrasonic waves based on the counted number of particles; and wherein the finding step finds the strength of the ultrasonic waves based on the counted number of the eluted particles according to a correlation between the number of the eluted particles and the strength of the ultrasonic waves, the correlation obtained in advance by vibrating with ultrasonic waves the particle source that is soaked into the cleaning liquid and correlating the number of eluted particles separated from the vibrated particle source with strength of the ultrasonic waves.