Several key parameters of patch potentiometer

　　Patch type potentiometer Introduction: Patch type potentiometer is an adjustable electronic component. It consists of a resistance body and a rotating or sliding system. When a voltage is applied between two fixed shocks of the resistance body, the position of the contact on the resistance body is changed by rotating or sliding system, and a voltage that is in a certain relationship with the position of the moving contact can be obtained between the moving contact and the fixed contact. It is mostly used as a voltage divider, when the patch type potentiometer is a four-terminal element. Patch type potentiometer is basically a sliding rheostat, there are several styles, generally used in the sound box volume switch and laser head power size adjustment Patch type potentiometer is an adjustable electronic component.

　　Variable resistor for voltage division. On the exposed resistor body, one or two movable metal contacts are pressed tightly. Contact position Determines the resistance value between either end of the resistor and the contact. According to the material, wire wound, carbon film, solid core patch type potentiometer; According to the relationship between the output and input voltage ratio and the rotation Angle, the linear patch type potentiometer (linear relationship) and the functional patch type potentiometer (curvilinear relationship). The main parameters are resistance, tolerance and rated power. It is widely used in electronic equipment as volume control in audio and receivers.

　　Coincidence degree

　　Conformance is also called conformance, which refers to the degree of conformance between the actual output function key, parameter characteristics and the required theoretical function characteristics of the chip type potentiometer. It is expressed as a percentage of the maximum deviation between the actual and theoretical characteristics of the total external voltage, which can represent the accuracy of the chip type potentiometer.

　　Resolving power

　　The resolution is determined by the theoretical accuracy of the chip potentiometer. For wire wound patch potentiometers and linear patch potentiometers, the resolution is expressed as a percentage of the resistance change caused by each turn of moving contact on the winding and the total resistance. For a chip potentiometer with critical parametric function characteristics, the resolution is a variable due to the different resistance of each turn on the winding. At this time, the resolution of the chip type potentiometer generally refers to the average resolution of the slope of the largest section of the function characteristic curve.

　　Sliding noise

Read recommendations:

5g rf filter

Drop in circulator

resistive power divider

omni directional cell antenna

Professional characteristics of Coaxial Termination connectors.omni directional 4g 3g lte external antenna