Heart sound is the shock vibration to the chest wall during the heartbeat. The mechanical vibration of heart sounds can be recorded by instruments such as polyvinylidene fluoride (PVDF) piezoelectric ultrasonic transducer , which is called a phonogram. When detecting simulated human heart sounds, th

　　Ultrasonic transducer is a device that transmits and receives ultrasonic waves during ultrasonic testing. The performance of the probe directly affects the characteristics of the ultrasonic wave and the detection performance of the ultrasonic wave. The ultrasonic sensor is used in ultrasonic test

Factors affecting the normal operation of ultrasonic liquid level gaugeSeveral factors affecting the normal operation of ultrasonic liquid level gauge The effect of stirring on the ultrasonic level transducer.The on-site container often has stirring, and the liquid fluctuation is relatively large, w

Selection requirementsWhen is selecting and installing an ultrasonic sensor it is necessary to clarify some basic conditions, otherwise it will directly affect the measurement result of the ultrasonic sensor.Detection range and sizeThe size of the object to be detected directly affects the detection

The component ultrasonic sensors that need to be listed when is using ultrasonic to make arduino radar.Arduino Board (I use arduino Uno)Servo motor (mg-996)HC-SR04 ultrasonic sensorBreadboardJumperStep1:

Step 1: Hardware connection

The reversing radar of piezoelectric ultrasonic transducer is "reverse collision avoidance radar", also known as "parking assist device". It is a safety assist device when parking or reversing the car and other parts.It can inform the driver about the obstacles around with a sound or a more intuitiv

With the development of electronic computers, production automation, modern information, military, transportation, chemistry, environmental protection, energy, marine development, remote sensing, aerospace and other scientific technologies, the demand for sensors is increasing day by day. Various de

Hydrothermal preparation of thick films has many advantages:① This process is completed in the liquid phase at one time, and no later crystallization heat treatment is required, thus avoiding defects such as cracking, grain coarsening, reaction with the substrate or atmosphere that may be cause duri

Sonar transducer and underwater acoustic transducers are two kinds of detection devices that are often heard. Many people think that these are a kind of ultrasonic sensor. What is the difference between these two transducers?The sonar transducer directly detects and recognizes the objects in the und

Regarding piezoelectric ceramics, everyone can gradually understand the important products of website and increase their knowledge in this field. Therefore, it is beneficial to achieve the expected learning goals and requirements as soon as possible. What are the specific values of the elastic modul

Application of elastic and dielectric properties of piezoelectric ceramic crystal Piezoelectric ceramic is a kind of information functional PZT ceramic material that can transform mechanical energy and electrical energy. In addition to piezoceramic ring crystals properties, piezoelectric ceram

Due to many factors affecting the frequency and different application methods, we only provide the resonance frequency of piezoelectric ceramic plate as a reference under no-load condition. However, this resonance frequency, the natural frequency of piezoelectric ceramics,which can not be used as th

1. Ultrasonic transducer, what kind of pulse does it need to generate or obtain ultrasound? And, how is the resonance frequency determined?In an piezoelectric ultrasonic transducer, the pulse required is a high-frequency pulse signal, and is determined by its driving frequency. As for the determinat