The frequency discrimination characteristic is shown in (c), which is opposite to the polarity of the frequency discrimination characteristic of the mutual inductance coupling or capacitive coupling phase discriminator, which should be paid special attention in the automatic frequency control system. Of course, by changing the direction of the two diode connections or the winding direction of the coupling coil (the same name end), the frequency discrimination characteristic can be reversed.
Where: E0=Uc1+Uc2 is the voltage across capacitor C. The above formula shows that the output voltage of the proportional discriminator depends on the ratio of the voltages on the two detection capacitors, so it is called a proportional discriminator.
Displacement sensor, also known as linear sensor, is a linear device belonging to metal induction. The function of the sensor is to convert various measured physical quantities into electricity. In the production process, the measurement of displacement is generally divided into measuring the physical size and mechanical displacement. According to the different forms of the measured variable, the displacement sensor can be divided into two types: analog and digital. The analog type can be divided into two types: physical property type and structural type. Commonly used displacement sensors are mostly analog structures, including potentiometer-type displacement sensors, inductive displacement sensors, self-aligning machines, capacitive displacement sensors, eddy current displacement sensors, Hall-type displacement sensors, etc. An important advantage of the digital displacement sensor is that it is convenient to send the signal directly into the computer system. This kind of sensor is developing rapidly, and its application is increasingly widespread.
Magnetic Scale Linear Encoder,Magnetic Scale Encoder,Encoder Software,Encoder Meaning
Changchun Guangxing Sensing Technology Co.LTD , https://www.gx-encoder.com