Analysis of the working principle of piezoelectric ceramic igniter

Piezoelectric ceramic material composition

Working principle of piezoelectric ceramic igniter

In terms of energy conversion, piezoelectric igniters, mobile X-ray power supplies, and cannonball detonation devices can be manufactured using the characteristics of piezoelectric ceramics to convert external forces into electrical energy. There are flints made of piezoelectric ceramics in electronic lighters, and the number of lighters can be more than 1 million. Using piezoelectric ceramics to convert electrical energy into ultrasonic vibration, it can be used to find the position and shape of underwater fish schools, perform non-destructive flaw detection of metals, as well as ultrasonic cleaning and ultrasonic medical treatment. It can also be made into various ultrasonic cutters, welding devices and soldering iron, processing plastic and even metal.
Piezoelectric ceramics have sensitive characteristics, piezo disc transducer can convert extremely weak mechanical vibrations into electrical signals, and can be used in sonar systems, meteorological detection, telemetry environmental protection, household appliances, etc. Earthquakes are devastating disasters, and the source of the earthquake originated deep in the earth's crust. It was difficult to predict before, which put humanity into an embarrassing situation. Piezoceramic's sensitivity to external forces allows it to even sense the disturbance of flying wings flapping the air from a dozen meters away. Using it to make a piezoelectric seismograph, it can accurately measure the seismic intensity and indicate the azimuth and distance of the earthquake. This can not be said to be a great work of piezoelectric ceramics.

The deformation of piezoelectric ceramics under the action of an electric field is very small, at most not more than one ten millionth of its size. Don’t underestimate this small change. The precise control mechanism based on this principle-the piezoelectric driver, The control of precision instruments and machinery, microelectronics technology, bioengineering and other fields are all good news.

Frequency control devices such as resonators and filters are the key devices that determine the performance of communication equipment. Piezoelectric ceramics have obvious advantages in this respect, piezoelectric disc transducer has good frequency stability, high accuracy and wide applicable frequency range, and it is small, non-hygroscopic and long-lived. Especially in multi-channel communication equipment, it can improve anti-interference, so that the previous electromagnetic equipment cannot face its own face and is facing Alternative fate.

Let's first look at a new type of bicycle shock absorber. It is difficult for general shock absorbers to achieve a stable effect. This ACX shock absorber controller uses piezoelectric materials to provide a continuously variable shock absorber function for the first time. A sensor monitors the movement of the impact piston at a rate of 50 times per second. If the piston moves quickly, it is generally due to the rapid impact caused by driving on uneven ground. At this time, the maximum shock absorption function needs to be activated; if the piston moves slowly, then Indicates that the road surface is flat, and only weaker shock absorption functions are required. In summary: Piezoelectric ceramic is a vector conversion material force --- "; electricity -----"; force 1 power-to-electricity conversion, typical application: piezoelectric ignition, weighing sensor 1 power conversion: brake, Actuator Electric-"; Force--"; Deformation--"; Vibration-Sound Wave-"; Electroacoustic-"; Ultrasonic and other deformation--"; Displacement-"; Detection of electricity -"; Force-"; electricity, piezoelectric transformers, etc. ~ It can be said that although piezoelectric ceramics are new materials, they are quite civilian. It is used in high technology, but it is more about serving people in life and creating a better life. The main raw materials of piezoelectric ceramics also include toxic substances such as lead. In the next stage, lead-free piezoelectric ceramics and low-temperature piezoelectric ceramics will be the direction of development.