How much do you know about the torque sensor related classification?

Because of the sensor is rare in life, we should learn more about this knowledge. You might be on the torque sensor has a lot of problems. Below is a detailed introduction to the question, so that people can to relevant content have a deeper understanding of the dynamic torque sensor, if once in your life. If you use it, you will know what happened. What is the classification of the torque sensor? Torsion torque sensor based on the principle of the role of different, can be divided into resistance should be variant type and voltage magnetic, torsion torque sensor can be divided into vibrating string type, photoelectric type and phase difference type 3 kinds. Resistance strain type torque sensor, the sensor has simple structure, easy to manufacture, but the use of conductive slip ring vibration frequency is low, not suitable for high speed rotor vibration and high torque. Photoelectric sensor torque answer: it consists of a torsion shaft and two grating plate ( FIG. 2) 。 Two radial grating plate have the same number of black parts. When torsion shaft is torsion, torsion Angle deformation, grating disc, 1 and 2 into different angles formed light transmission port. Optoelectronic devices make the output pulse width and the torque, the greater the translucent the larger the aperture of the port. Current pulse width is bigger also. The average of the pulse current is proportional to the torque. Sensors are contact, but light source must be stable. Magnetic pressure of the torsion shaft torque sensor is made of ferromagnetic materials. Under the effect of torque, the direction of the stress and magnetic anisotropy, which under the action of tensile stress resistance decreases, and the compressive stress under the action of resistance increase. The sensor conductive slip ring, belongs to the non-contact measurement. With high reliability, good durability, high output voltage, is not sensitive to temperature and interference, etc. Vibrating string type torque sensor is sensitive to it USES vibrating string twist Angle measuring torque ( See the string vibration sensor) With frequency signal transmission way and good anti-jamming performance. Reverse phase difference type sensor which consists of a torsion shaft, two gears and a pair of magnetic resistance of pulse generator. A detector is composed of coil and magnet installation on top of each gear tooth. When be reversed torsion shaft, two phase detector output voltage, which correspond to the size of the torque. By measuring the phase difference can measure the corresponding torque value. The sensor has high measuring accuracy, non-contact measurement, good stability, the digital quantity direct torque value, easy to record and control, simple structure, etc. Through the above the classification of the torque sensor, you learn a lot about this knowledge. The torque sensor is, in fact, a lot of machines have used, but also widely used. If fail, also need to understand the problems, rather than the classification. Type concrete analysis to the problems, we should specifically analyzing the specific problems, to learn more about the torque sensor. It is good for life and work.

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