Article List
- Single-side ground alumina piezo ceramic substrate(2)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 grBasics of Piezoelectric Ceramics October 10, 2018
- Solution for yellowing of alumina piezo ceramicIn the processing environment of double-side grinding of alumina Pzt piezo ceramic ring substrate, it is difficult to avoid the influence of iron ions, so that yellow iron oxide adsorbs and covers the surface of the substrate, and the surface of the substrate is liable to be yellow. Considering thatBasics of Piezoelectric Ceramics October 09, 2018
- the root cause of the yellowing of the surface of alumina piezo ceramicAfter the alumina piezo ceramic substrate is ground by different abrasives, the surface has different degrees of yellowing. This section uses EDS spectrum to detect the types of piezo elements before and after the surface of the alumina piezo ceramic substrate, and then explores the possible surfaceBasics of Piezoelectric Ceramics October 09, 2018
- Range of ultrasonic ranging systemThe ultrasonic ranging system developed has a range of more than 32 meters, a beamwidth of less than 100, and a bandwidth of about 4 kHz (22-25. 5 kHz). If a combined ultrasonic transducer structure is used, the bandwidth can be extended to 8 kHz. A large-range ultrasonic ranging system composed ofUltrasonic Transducer information October 08, 2018
- Demodulation algorithm of ultrasonic ranging system transducerIn order to improve the anti-interference ability and measurement accuracy of the ultrasonic ranging system, an appropriately selected PN can be used.The code replaces the single pulse signal as the encoded information. The noise signal is uncorrelated with the encoded information can be filtered byUltrasonic Transducer information October 05, 2018
- digital single pulse of ultrasonic distance transducerThe propagation path of the ultrasonic waves is called a channel. The additive noise of the channel is mainly determined by the undulating noise, ultrasonic transducers sensor in turn can be regarded as Gaussian white noise. Since additive noise is considered to only affect the reception of the signUltrasonic Transducer information October 05, 2018
- Long range ultrasonic ranging transducer systemIn the ultrasonic ranging system, the performance of the ranging algorithm directly affects the performance of the ranging system;The operation speed of the method directly affects the performance of the ranging system. From the perspective of information theory, the ultrasonic ranging process is acUltrasonic Transducer information October 04, 2018
- circuit design of ultrasonic receiving transducer sensorThe ultrasonic receiver is composed of an ultrasonic transducer and a receiving circuit. In order to achieve a wide range of ultrasonic ranging, it is required not only that the ultrasonic receiving circuit can amplify the weak signal reflected from the distant target, but also that the strong signaUltrasonic Transducer information October 04, 2018
- circuit design of ultrasonic transmitting transducerWith regard to ultrasonic transducers, ultrasonic transmitting and receiving circuits are devices for converting electrical energy and acoustic energy. Generally, the ultrasonic transducer has low electromechanical energy efficiency, which seriously affects the working distance of the ultrasonic traUltrasonic Transducer information October 01, 2018
- array receiver of ultrasonic transducerMainly introducing the connection mode of the ultrasonic transducer array (auxiliary receiver) output port. The next chapter studies the design problem of the receiving and transmitting circuit of the disc-type piezoelectric transducer (main transducer), The circuit-assisted receiver array consistsUltrasonic Transducer information October 01, 2018