Linear Potentiometer PCB

What is Linear Potentiometer PCB ?

Linear Potentiometer PCB also calls Linear-Taper Potentiometer PCB uses thick film carbon printed on the PCB as the resistive element. Linear Potentiometer PCB is an electronic component classified as variable resistor and used as voltage divider to provide variable output voltage. There are different types of Linear Potentiometers PCB with printed resistive element on different substrate like FR4 PCB, Polyimide (Flex-PCB),or Ceramic PCB. Linear Potentiometer PCB adopts printing carbon element process to replace a potentiometer and combines it into the PCB. Printing the carbon paste material with high resistance value on two terminals (opposite ends) of the PCB, Then conductive carbon element and the two terminals will form one or more voltage dividers on the PCB. Potentiometer PCB can be classified into Linear-Taper Potentiometer PCB and Non-Linear logarithmic Taper Potentiometer PCB depending on the mode of operations.
Linear Potentiometer PCB can achieve all the functions of a Linear Potentiometer, which is equivalent to transplanting or integrating the potentiometer module directly onto the PCB surface, Linear Potentiometer PCB technology can not only effectively save the assembly space of the product, but also provide a variety of options for product developers. The most important thing is to effectively reduce the manufacturing cost of the product.

Linear Potentiometer PCB uses a strip of carbon resistive material with constant density all the way around. As a result, the resistance between the center terminal and either end terminal changes at a steady rate as the control shaft rotates, The resistance between the middle terminal and-either end terminal constitutes a linear finction of the angular shaft position. In the majority of variable resistors available this is a linear relationship, meaning that the relative position is equal to the resistance ratio. For example, when the sliding contact is at the middle position, the variable resistance value is half of the full-scale resistance of the potentiometer.
Linear Potentiometer PCB allows you to print the thick film resistor element on the rigid board, flex board, rigid-flex PCB, or Ceramic PCB, The main performance of such PCBs include carbon resistance (ohm), sheet resistance (ohm/square), and linear tolerance (like<1.0%). and durability (life time) etc.

Linear Potentiometer PCB is a type of special linear position sensor. They are used to measure displacement in any direction. Linear potentiometers linearly measure displacement and rotary potentiometers measure rotational displacement. The mechanical construction of rotary and linear potentiometers is very similar, each type consists of a contact wiper and a conductive element or track. In Linear Potentiometer PCB the track is straight, and in Rotary Potentiometer PCB the track is circular. The wiper moves along the track to measure the displacement by proportionally dividing the input voltage.

How does a Linear Potentiometer PCB work?

Linear Potentiometer PCB works by having a resistive element on the PCB. Both end terminals are attached to thick film resistor, The wiper travels along the resistor strip when the knob is turned. The closer the wiper is to the end terminal it is wired in conjunction with, the less the resistance, because the path of the current will be shorter. The further away it moves from the terminal, the greater the resistance will be. For example, when the sliding contact is at the middle position, the variable resistance value is half of the full-scale resistance of the potentiometer.

By the way, We also provided custom Multi-Wire Wipers (Contacts) for customer if needs, we can manufacture the wipers according to customer's drawing design requirements or specification. More information about wipers , Please refer to Multi-Wire Wipers.

What is a Linear Potentiometer PCB for?

Linear Potentiometer PCB can be used in the following areas:
Linear position sensor,Swilrl actuator position sensor
Steering systems, on agricultural machinery, heavy-duty machinery
Idling Motor Control Module, Blower Motor
Auto,motorcycle Applications, Headlight position sensor, ride height, gear shifts, steering angle measurement, suspension and throttle control
Plastic injection moulding machines
Audio control system, Music Equipment,Sound system
Valve Positioning
Joysticks, hand controllers
Medical equipment
Industrial automation machinery