What are the reference standards for selecting adjustable potentiometers

Standard 1. After selecting the type and specifications of the adjustable potentiometer according to the requirements of the equipment and circuit, the electrical parameters of the adjustable potentiometer should be reasonably selected according to the requirements of the circuit, including rated power, nominal resistance, allowable deviation, and resolution Rate, maximum operating voltage, dynamic noise, etc.

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel. Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

Standard two, choose potentiometer according to the law of resistance change

　　 Linear potentiometers should be used for voltage adjustment in various power circuits, operating point adjustment of amplifying circuits, auxiliary brightness adjustment, and line and field scanning signal adjustment potentiometers. The potentiometer for tone control in audio equipment should be an inverted logarithmic (previously called exponential) potentiometer, and the potentiometer for volume control can be a logarithmic potentiometer.

　　 Standard Three, choose the potentiometer according to the requirements of use

　　 When selecting a potentiometer, the material, structure, type, specification, and adjustment method of the potentiometer should be selected according to the specific requirements of the application circuit.

For example, power-type wirewound potentiometers should be used for high-power circuits; high-precision wirewound potentiometers, precision multi-turn potentiometers or metal glass glaze potentiometers should be used in circuits such as precision instruments; carbon film potentiometers can be used for medium and high-frequency circuits ; The volume adjustment and power switch of the semiconductor radio can choose a small carbon film potentiometer with a rotary switch; the volume control of the stereo audio amplifier can choose a dual-axis potentiometer; the tone control of the audio system can choose a straight-slide potentiometer; The reference voltage adjustment of the power supply circuit should use a fine-tuning potentiometer; the potentiometer used in communication equipment and computers can be a patch type multi-turn potentiometer or a single-turn potentiometer.