Ultrasonic transducer-Altrasonic information
Ultrasonic transducer can be said to be the core component of any kind of ultrasonic application equipment. In simple terms, an ultrasonic transducer is an energy conversion device that can convert high-frequency electrical energy into mechanical energy. The piezoelectric effect of the material converts electrical signals into mechanical vibrations. Its function is to convert the input electrical power into mechanical power (ultrasound) and then transmit it out, while consuming a small part of the power by itself. The transducer consists of a shell, a matching layer, a piezoelectric ceramic disc transducer, a backing, a lead-out cable and a Cymbal array receiver. The piezoelectric ceramic disc transducer is made of PZT-5 piezoelectric material polarized in the thickness direction. The Cymbal array receiver consists of 8-16 Cymbal transducers, two metal rings and rubber washers. Ultrasonic transducer, including housing (1), matching layer or acoustic window (2), piezoelectric ceramic disc transducer (3), backing (4), lead cable (5), characterized in that it also includes Cymbal array receiver, which is composed of lead-out cable (6), 8-16 Cymbal transducers (7), metal rings (8), (9) and rubber gasket (10); Cymbal array receiver is located on the disc Above the piezoelectric transducer 3; the piezoelectric ceramic disc transducer is used as the basic ultrasonic transducer, which transmits and receives ultrasonic signals; the Cymbal array receiver is located on the disc piezoelectric transducer, As an ultrasonic receiver, it is used to receive Doppler echo signals outside the frequency band of the disc transducer. Mainly suitable for mask production equipment, ultrasonic plastic welding machine, ultrasonic cloth sewing and embossing equipment, etc. Frequently asked questions and answers about ultrasonic transducers: 1. When the ultrasonic vibrator is damp, you can use a megohmmeter to check the plug connected to the transducer. Check the insulation resistance value to determine the basic situation. Generally, the insulation resistance is required to be greater than 5 megohms. . If this insulation resistance value is not reached, the transducer is usually damp. You can put the transducer as a whole (excluding the plastic-sprayed shell) into an oven and set it at 100℃ for 3 hours or use a hair dryer to remove moisture to the resistance So far. 2. The transducer vibrator is ignited and the ceramic material is broken. It can be checked with the naked eye and a megohmmeter. Generally, as an emergency measure, individual damaged vibrators can be disconnected without affecting the normal use of other vibrators. 3. The vibrator is degummed. Our transducer adopts the double guarantee process of cementing and screw fastening, which will not happen under normal circumstances. 4. The stainless steel vibrating surface is perforated. Generally, the vibrating surface may be perforated after 10 years of full-load use of the transducer.