The UAV ranging transducer system described in this paper applies to the principle of ultrasonic distance measurement, and uses the measurement ultrasonic wave to transmit pulses.The time difference between the wave and the received pulse wave has the relative position is calculated by the speed at

The principle of drone technology and ultrasonic ranging transducer demonstrates the loss feasibility of measuring the obstacles in the electrical circuit corridor; the third chapter mainly introduces the ultrasonic ranging transducer system equipment, including selection of UAV equipment parameters

In this section, two kinds of piezoelectric ceramics composite materials with a center frequency of around 50 MHz are prepared to prepare two kinds of poly. Focused ultrasonic transducers in the form of a focal point are spherical focus and cylindrical line focus, respectively. The schematic diagram

Researching on acoustic transducer layer materials began in the 1980s. In 1998, Kim Yeonbo and Roh Yongrae uses the method of time domain analysis to theoretically give a suitable for broadband, it is high energy ultrasound structure of the energy device and the best acoustic impedance matching valu

Ultrasonic transducers, what kind of pulses do they need to generate or obtain ultrasound? How to confirm the resonance frequency ?About ultrasonic transducer, the pulse required is a high-frequency pulse signal, and is determined by its driving frequency. As for the resonant frequency of the trans

What’s the common method for measuring the speed of ultrasonic transducers?Among the method about measuring speed of Ultrasonic distance measuring transducer, a resonance method is commonly used, transducers emit similar sound wave of plane wave and then reflected and superimposed by the sound wave

The propagation of vibration sensor in the medium is referred to as wave. There are two conditions for generating wave: vibration (generated by the wave source) and propagation (need to propagate the medium). According to the generation of fluctuations, it can be divided into mechanical waves and el

1 IntroductionWith the development of new technologies such as automation, the number of ultrasonic transducers is increasing, and all modern instruments and equipment are inseparable from sensors in the industrial production, especially in the production processes, various transducers are used to m

At present, there are two types of ultrasonic transducer sensor, one is an in-vehicle integrated probe, other is an integrated transmitting and receiving probe . The other is a separating design for sending and receiving. The basic principle of its implementation is that the transmitting probe emits

Ultrasonic position sensor adopts the principle of ultrasonic echo measurement. It uses different measurement technology to detect the distance between the sensor . The ultrasonic sensor with small angle and small blind area has the advantages of accurate measurement, no contact, waterproof, anti-co

Principle and application of ultrasonic position sensorUltrasound waves is a general term for mechanical waves whose frequency exceeds the human 's auditory frequency limit (approximately 20 kHz). Ultrasonic waves are generated by vibration transducer under the excitation of voltage. Distance measur

An acoustic ranging sensor is developed to measure the separation distance between rocket stages. The structure is a radioactive source and exploration.The distance measuring transducers are mounted face-to-face on two-stage rockets, and the number of particles detected during the separation process

Signal transmission refers to the way in which the high-temperature piezos discs transducer of thin-film sensor is fabricated on the component or structure, and the method of supplying power and taking power is to measure signals such as strain and temperature. High-temperature areas of PZT piezocer

High-temperature thin film flowmeters generally consist of a thermal resistance layer and a thin film thermometer layer. The thermal resistance layer of piezos discs transducer usually uses PZT material with a small thermal conductivity so that the thermometers are on both sides can obtain a large t