After 76 days of "closing the city",Finally WuHanis unblocked on April 8th. With the efforts of the whole people, it lasted more than two months. The domestic epidemic situation can be said to have been "controlled." The overseas epidemic situation is still severe (the number of newly diagnosed over

The high-frequency pulse circuit of the ultrasonic flaw detector generates a high-frequency pulse oscillating current to be applied to the piezoelectric ceramic crystal in the ultrasonic transducer (probe), which excites the ultrasonic wave and transmits it to the workpiece to be inspected, and when

The sensor rod acts as a mechanical resonator and is inserted into the feedback circuit of the excitation amplifier. Under the action of the excitation coil, the sensor rod generates longitudinal ultrasonic vibration. The signal is detected by the piezoelectric wafer and is positively fed back to th

1, preparationAccording to the requirements of the consumption obligation sheet, carefully reflect and confirm, and prepare the ultrasonic transducer (with the right pair), the cylinder block, the mesh mat, the glue, etc. that need to be glued. 2, sandblastingThe ultrasonic cleaning transducer and c

The ultrasonic cleaning vibrator should be placed in a dry place to avoid the ultrasonic vibration of the mover, which will affect the normal work. If the ultrasonic vibrator is damp, put it into the oven and set it to dry at about 100 °C for 2 hours or use a hair dryer to remove moisture until the

Pzt piezo ceramic actuators can be fabricated by using the inverse piezoelectric effect of piezoelectric ceramics, and are used in the automotive field to drive electric rearview mirrors, electric windows and doors, power seats, and the like. This kind of driving can greatly reduce the volume of the

Sonar is an electronic equipment that uses sound waves propagating in the ocean to detect targets and locate, identify and track targets. Piezo ceramic ring transducer is the most widely used and most important underwater acoustic equipment in hydroacoustics. Sonar technology refers to the technolog

When the piezo ceramic tile is positioned by the ceramic ring, the surface material of the alumina piezo ceramic after single-side grinding decreases with the decreasing of the hardness of the grinding disk, while the copper abrasive disk obtains the lowest surface roughness Ra.The quality of the gr

high mechanical quality of the piezoelectric transducerAbout high mechanical quality factor Q, it can improve the efficiency of the piezoelectric transducer (vibrator) and reduce the loss (7) Wide operating frequency band. In fact, it is difficult at present to have a