Analysis of Four Common Problems of Ultrasonic Transducer

1. The ultrasonic transducer is damped:

The damp of ultrasonic transducer is one of the common problems of ultrasonic transducer.  Usually, the plug connected with the transducer is checked by megaohmmeter, and the insulation resistance between the positive and negative poles of the transducer can be judged. Insulation resistance is generally required to be greater than 30 megaohms. If this value of insulation resistance is not reached, it is likely that the transducer is damped. Maintenance method is to put the transducer as a whole (excluding the plastic-sprayed shell) into the oven at about 100 ℃, dry for three hours or use the hairdryer to remove moisture until the resistance value is normal. The transducer oscillator ignited and the ceramic material fragmented. Maintenance can be combined with naked eye and megawatt-hour meter inspection. Generally, as a measure of emergency treatment, the damaged transducers can be disconnected without affecting the normal use of other transducers.

2. Degumming of transducer:

Degumming of transducer is the second common problem of  ultrasonic transducer. We know that most manufacturers use sticky way to fix transducers, but after long-term use of ultrasonic cleaner, the phenomenon of degumming will occur due to vibration. There are also manufacturers using cementation and screw fastening method, in general, there will be no degumming, because of the role of the screw, the oscillator will not fall off the vibration surface after degumming, the general judgment method is to use the hand to shake the tail of the oscillator, carefully observe the glue situation on the vibration surface to make a judgment.

3. Shocks burn out:

The burnout of vibrator is the third common problem of ultrasonic transducer. Usually the output power of the ultrasonic power supply is normal after the degumming of the oscillator, but the vibration effect of the oscillator is not good due to the bad connection between the oscillator and the vibration surface. Because the energy can not be released after a long time, the oscillator will probably burn out. Vibrator degumming is more troublesome for users to repair. Generally, it can only be sent back to the manufacturer for repair. The most effective way to avoid the degumming of the oscillator is to pay attention not to impact the vibration surface in normal use.

4. Vibration surface perforation:

Vibration surface perforation is the fourth common problem of ultrasonic transducer. Usually, the vibration surface perforation of ultrasonic transducer may occur after several years of full load operation. This is due to the long time and high frequency vibration fatigue of stainless steel plate on the vibration surface. Vibration surface perforation indicates that the service life of the transducer has arrived and can only be replaced in maintenance.