JPS6378025A - Ultrasonic tester - Google Patents

Abstract

PURPOSE:To know the generation distribution and the generation intensity of an ultrasonic wave of a device without necessitating a power source, by constituting the titled tester of a piezoelectric element, and a light emitting element which is connected to the piezoelectric element. CONSTITUTION:As for an ultrasonic tester, a light emitting element 2 is connected to a piezoelectric element 1. When the piezoelectric element 1 receives an ultrasonic wave, it is driven and an electromotive force is excited, by which a current flows to the light emitting element 2 and light is emitted. Accordingly, when the piezoelectric element 1 is put into a liquid in which an ultrasonic wave is generated, for instance, a cleaning tank of an ultrasonic cleaning machine, the piezoelectric element 1 receives the ultrasonic wave and the light emitting element 2 emits a light beam thereby, therefore, by this emitted light state, a distribution of the ultrasonic wave in the cleaning tank and an operating state of an oscillator, etc. can be known easily. In such a way, as for this tester, no power source is required, the constitution is simple, and by only putting the piezoelectric element into water or a liquid, whether an ultrasonic wave is generated or not can be detected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an ultrasonic tester that can be used, for example, to check an oscillator such as an ultrasonic cleaner or to detect the generation distribution of ultrasonic waves.

In general, ultrasonic cleaning machines are equipped with an output oscillator, etc. inside a container stand at the bottom, and a transparent cleaning tank, for example, is mounted on the container stand, and a vibrator is placed in contact with the bottom of the cleaning tank. Attach the
An output is given to this vibrator from an output oscillator, and the ultrasonic waves generated from the vibrator are guided into the cleaning tank, vibrating the liquid in the cleaning tank, and cleaning the object immersed in the liquid. It consists of

However, in the ultrasonic cleaning machine configured as described above, does the output oscillator operate normally?

It is impossible to know whether the ultrasonic waves generated by the vibrator are being efficiently guided into the cleaning tank.

Furthermore, no ultrasonic tester was known for detecting areas where ultrasonic waves are strong or weak within the cleaning tank.

V for solving the same J solution In order to solve the above problems, the present invention uses a piezoelectric element,
It is characterized by comprising a light emitting element connected to the piezoelectric element.

■ According to the present invention, the piezoelectric element is excited by receiving ultrasonic waves, and an electromotive force is excited, which causes current to flow through the light emitting element and emit light. When inserted, check whether the oscillator is working properly and whether the ultrasonic waves are being efficiently guided into the cleaning tank.
Alternatively, it is possible to easily know in which part of the cleaning tank the ultrasonic waves are being generated strongly.

Kantane Co., Ltd. FIG. 1 shows a circuit diagram of an ultrasonic tester according to an embodiment of the present invention, in which a piezoelectric element 1 is connected to a light emitting element (for example, a light emitting diode) 2. As shown in FIG.

In the ultrasonic tester of this embodiment configured in this way, when the piezoelectric element 1 receives ultrasonic waves, the piezoelectric element 1 is excited and an electromotive force is excited, and this causes a current to flow through the light emitting element 2. emits light. Therefore, when this piezoelectric element 1 is placed in a liquid in which ultrasonic waves are generated, for example, in a cleaning tank of an ultrasonic cleaner, the light emitting element 2 emits light as the piezoelectric element 1 receives the ultrasonic waves. The distribution of ultrasonic waves in the cleaning tank, the operating state of the oscillator, etc. can be easily determined based on the state of light emission.

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

FIG. 2 shows how the ultrasonic tester shown in FIG. Piezoelectric elements 1a, 1b, and 1c having different frequencies are used as piezoelectric elements 1a, 1b, and 1c.
, 2C are connected.

In the ultrasonic tester configured in this way, the piezoelectric element]a
, lb, and 1c are immersed in the liquid 5 in the cleaning tank 4 of the ultrasonic cleaner 3, the ultrasonic waves generated by the vibrators 6a, 6b, and 6c of different frequencies provided on the container stand of the ultrasonic cleaner are emitted. The piezoelectric elements 1a, 1b, and 1c each detect, and depending on the intensity of the light emitted by the light emitting elements 2a, 2b, and 2c, it is possible to determine which frequency of ultrasonic waves is being generated strongly in the cleaning tank 4, and which ultrasonic waves are being generated in the cleaning tank 4. It is possible to detect whether strong ultrasonic waves are being generated in a certain area.

In the above embodiment, the intensity of ultrasonic waves in the cleaning tank of the ultrasonic cleaner is detected, but the invention is not limited to this, and the generation distribution of ultrasonic waves of other devices that generate ultrasonic waves can be detected. can be easily known. Moreover, this ultrasonic tester can also be incorporated into a device that generates ultrasonic waves.

As is clear from the above description, the present invention has a simple configuration in which a light emitting element is connected to a piezoelectric element, does not require a power source, and can control the generation distribution and intensity of ultrasonic waves of the device. It has the advantage of being easy to understand.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an ultrasonic tester according to an embodiment of the present invention,
FIG. 2 is a diagram showing a state in which the ultrasonic tester of the present invention is used to detect the ultrasonic distribution and intensity in the cleaning tank of an ultrasonic cleaner. 1, la, lb, 1c...piezoelectric element, 2.2a, 2
b, 2C... Light emitting element. Figure 1 Figure 2

Claims (2)

[Claims] (1) An ultrasonic tester comprising a piezoelectric element and a light emitting element connected to the piezoelectric element. (2) The ultrasonic tester according to claim 1, wherein the piezoelectric element is a plurality of piezoelectric elements having different frequencies, each of which is connected to a light emitting element.