JPH0684906B2 - Ultrasonic tester - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic tester that can be used for checking an oscillator of an ultrasonic cleaning machine or detecting an ultrasonic wave generation distribution.

2. Description of the Related Art Generally, an ultrasonic cleaning machine is equipped with an output oscillator and the like inside a lower container base, a transparent cleaning tank is mounted on the container base, and a vibrator is mounted by contacting the bottom of the cleaning tank. Then
An output is applied to this vibrator from the output oscillator, the ultrasonic waves generated from the vibrator are guided into the cleaning tank, and the liquid in the cleaning tank is vibrated to clean the object to be cleaned immersed in this liquid. I am configuring.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the ultrasonic cleaner configured as described above, the output oscillator is operating normally, or the ultrasonic waves generated by the vibrator are efficiently guided into the cleaning tank. It was not possible to know whether or not there was any ultrasonic wave, and there was no known ultrasonic tester for detecting the strong or weak place of the ultrasonic waves in this cleaning tank.

Means for Solving the Problems In order to solve the above problems, the present invention provides a piezoelectric element having electrodes mounted on both sides, and a cylindrical gripping part having the piezoelectric element mounted at its tip and in which ultrasonic waves are not attenuated. And a meter electrically connected to the piezoelectric element by a cord without an amplifier.

Effect According to the present invention, the piezoelectric element is excited by receiving ultrasonic waves, the electromotive force is excited, and thereby the meter shakes.Therefore, when the piezoelectric element is inserted into, for example, the cleaning tank of the ultrasonic cleaning machine, the oscillator operates normally. It is possible to easily know, for example, whether the ultrasonic wave is operating, the ultrasonic waves are efficiently guided into the cleaning tank, or in which part of the cleaning tank the ultrasonic waves are strongly generated.

Example FIG. 1 is a block diagram of an ultrasonic tester according to an example of the present invention, in which electrodes are attached to both surfaces of the piezoelectric element 1 and the piezoelectric element 1 is insulated so as to directly receive ultrasonic waves. The piezoelectric element 1 is not covered with a body or the like, and the piezoelectric element 1 is attached to the tip of the grip portion 2 that does not attenuate ultrasonic waves.
The meter 4 is electrically connected to the electrodes on both sides of the piezoelectric element 1 via the cord 3 passing through the circuit without passing through an amplifier.

In the ultrasonic tester of the present embodiment configured as described above, when the piezoelectric element 1 receives an ultrasonic wave, the piezoelectric element 1 is excited and electromotive force is excited, whereby a current flows through the meter 4 and the pointer of the meter 4 is excited. 5 swings. Therefore, holding the gripping portion 2 and moving the piezoelectric element 1 at the tip to the liquid in which ultrasonic waves are generated,
For example, if the piezoelectric element 1 is placed in the cleaning tank of an ultrasonic cleaner,
Since the pointer 5 of the meter 4 swings by directly receiving the ultrasonic wave, the distribution of the ultrasonic wave in the cleaning tank and the operating state of the oscillator can be easily known in the swinging state of the pointer 5 of the meter 4. .

As described above, the ultrasonic tester of the present embodiment does not require a power source, has a simple configuration, and can detect whether or not ultrasonic waves are generated simply by putting the piezoelectric element 1 in water or a liquid. You can

In the above embodiment, an example of detecting the strength of ultrasonic waves in the cleaning tank of the ultrasonic cleaning machine has been described, but the present invention is not limited to this.
It is possible to easily know the generation distribution of ultrasonic waves of another ultrasonic wave generating device.

EFFECTS OF THE INVENTION As is apparent from the above description, the present invention does not apply any coating such as an insulator to the piezoelectric element attached to the grip portion that does not attenuate ultrasonic waves, and does not use an amplifier on both electrodes of the piezoelectric element. The advantage is that you can easily know the ultrasonic wave generation distribution and intensity of the device without the need for a power source by directly receiving the ultrasonic waves with a simple configuration in which the meter is directly electrically connected to the There is.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an ultrasonic tester according to an embodiment of the present invention. 1 ... Piezoelectric element, 2 ... Grip, 3 ... Code, 4 ...
Meter, 5 ... pointer.

Claims (1)

[Claims] 1. A piezoelectric element having electrodes mounted on both sides, a cylindrical gripping part having the piezoelectric element mounted at its tip so that ultrasonic waves are not attenuated, and a piezoelectric element electrically connected by a cord without an amplifier. An ultrasonic tester comprising a connected meter.