What are the differences between potentiometers and adjustable resistors?

industrial potentiometer in foreign countries, also known as adjustable resistance or variable resistors, adjustable resistors and potentiometers in the domestic distinction. From the working principle of the structure and adjustable resistance, potentiometers and adjustable resistors are basically similar, but not all the same, so they are similarities and differences between the potentiometer and adjustable resistors in the end what is the difference, we Mainly from the following points to view:
1, the handle: Potentiometer with a handle, and adjustable resistors do not handle.
2, the resistance distribution characteristics: the potentiometer output characteristics have a variety of function characteristics, different potentiometer resistor body distribution characteristics are not the same; and adjustable resistor resistance body distribution is the same.
3, joint number: potentiometer potentiometer with double, and adjustable resistance does not.
4, the volume: long life potentiometer volume, solid structure, long service life. The adjustable resistance of the small size, the service life should be shorter.
5, anti-jamming performance: potentiometer metal shell in the circuit ground (joystick connected with the shell), so adjust the potentiometer when the interference is relatively small, you can achieve the purpose of interference suppression; and adjustable resistance without ground pins, regulation will By the human body induction interference.
6, the installation location and frequency of use: potentiometer installed in the circuit board or chassis, no matter what kind of installation, his handle needs to extend out of the case, a convenient adjustment, the machine often adjust the use of potential ; And adjustable resistance mounted on the circuit board, the use of the process is usually not adjusted, only in the troubleshooting of resistance adjustment.
7, the service life: potentiometer solid structure, long service life. However, due to frequent use of potentiometers, coupled with its mechanical movement, so in the same machine often potentiometer in the adjustable resistance in front of damage; and adjustable resistance structure is simple, improper adjustment easily damaged, shorter life, but because of The use of low frequency, so he did not show the shortcomings of life shortcomings.

Elaborate potentiometer-related knowledge

Linear Conductive Plastic Potentiometer in the role of the circuit in a very wide range, he not only in the circuit can be used alone, and in many cases with other electronic components with a variety of functions constitute the circuit. In this case,
Besides potentiometer
Potentiometer in the circuit's fundamental role is to provide a resistance for the circuit, the resistance is a physical quantity.
What is the tapped potentiometer? Usually someone called the resistance, popular speaking, the potentiometer in the circuit as the role played by the resistance in the same water.
On the conductor, the presence of potentiometers in the current flow resistance encountered, the specific performance is the resistance of the power consumption, it is clear from the potentiometer in this sense the role played by the negative. However, the circuit using the potentiometer of this feature, you can achieve many of the specific circuit functions.
Potentiometer is to provide a circuit with the resistance of components, potentiometers through the consumption of electricity, the distribution of current in the circuit, the purpose of a specific road.

SMD linear potentiometric displacement transducer in the bare resistor, pressing one or two removable metal contacts, contact position to determine the resistance between the resistor and the contact between the end of the resistance. When a voltage is applied between the two fixed contacts of the resistor body, the position of the contact on the resistor is changed by rotating or sliding the system, and a contact point between the rotary contact and the fixed contact is obtained, A certain relationship voltage.

Detection of the chip with a switch continuous potentiometer: For the chip with a switch potentiometer, in addition to the above method should be detected in the nominal potential of the chip potentiometer and contact, but also to detect whether the switch is normal.
First rotating potentiometer shaft handle, check whether the switch is flexible, connected, disconnected when there is crisp "creak" sound, with a multimeter R * 1 block, two table pen in the conductive plastic rotary potentiometers switch, respectively, two external welding On-chip, turn the potentiometer handle, so that the switch connected to the multimeter on the resistance value should be changed from infinity to 0 ohms in the "off" for the location of resistance is not infinite, then the chip potentiometer switch is damaged.

Detection of dual coaxial SMD angle sensor potentiometer: with a multimeter to block the appropriate range of resistance, were measured with double-chip potentiometer potentiometer on the two sets of resistance (ie, A, C between the resistance and A1, C1 Of the resistance value) are the same and with the nominal resistance value. Then the potentiometer A, C1 and the Custom Potentiometer A1 and C respectively shorted, and then use a multimeter to measure the center of the first B, B1 between the resistance value, in the ideal case, regardless of the potentiometer to the rotation axis to What position, B, B1 between the two points of resistance should be equal to A, C or A1, C1 between two points of resistance (that is, the multimeter pointer should always remain in the A, C or A1, C1 resistance scale Do not understand). If the multimeter pointer is deflected, it indicates that the potentiometer synchronization is not good.

Detection of the nominal resistance of the chip potentiometer: measurement, the first choice of the appropriate meter multimeter resistance range, the two table pen were connected to the fixed potential of the two chip potentiometer between the two fixed pins, the first measurement of chip linear position sensor potentiometer The total resistance is the same as the nominal resistance. If the measured resistance is infinite or greater than the nominal resistance, then the chip potentiometer has been open or variable value damage; Second, then the two table pen, respectively, SMD potentiometer center head and two fixed-side At either end, slowly turn the paddle potentiometer handle from one extreme position to the other extreme. Normal chip continuous turn potentiometer, multimeter meter needle resistance value should be from the nominal resistance (or 0 Europe) continuous change to 0 Europe (or nominal resistance). The whole process of rotation, hands need to change smoothly, and should not have any beating phenomenon. If in the process of adjusting the resistance value, the needle has a beating phenomenon, then the potentiometer there is a bad contact failure. Horizontal blue and white adjustable resistance detection method and the same.

The Function of Slide Adjustable Potentiometer

First, the sliding slide adjustable industrial potentiometer, one of the selected current output terminal for the sliding contact terminal, the sliding slide adjustable potentiometer can be used as a current controller.
Second, the potentiometer for the rheostat, the patch sliding adjustable potentiometer connected into two devices, the potentiometer range of travel can be obtained within a smooth continuous change in the resistance value, then the patch slide adjustable potentiometer played a rheostat .
Third, the patch sliding long life potentiometer is a continuously adjustable resistor, when adjusting the handle or handle, the moving contact will slide on the resistor body. The output voltage of the potentiometer and the arm angle or stroke of the movable arm can be obtained at the output end of the chip sliding adjustable potentiometer. This voltage is the patch sliding adjustable potentiometer in the process of its partial pressure

A carbon film tapped potentiometer is a resistance element having three lead terminals in which a fixed value of resistance is provided between two fixed terminals and the other end is slidable on the resistor body through a contact point. The resistance value of the wiper end and the fixed terminal varies depending on the position of the wiper Change. Carbon film potentiometer principle, features and uses are explained before.
Carbon film potentiometer application is quite broad, especially in some household appliances. There is a called the precision rotary potentiometer of the radio, that is, the potentiometer on the radio, it is a synthetic carbon film potentiometer, this potentiometer is by changing the position of the sliding end on the resistor body to obtain the strength of different new voltage To achieve the volume of the laying down regulation, generally with a control switch.

The role of potentiometer summed up for the following three points:

First, the control current: When the selected current output terminal is sliding contact terminal, the digital rotary potentiometer can be used to control the current.
The second role, the partial pressure: that is assigned to the partial voltage, when the potentiometer sliding or rotary handle to adjust the moving contact slip. The output of the potentiometer can be obtained with the potentiometer voltage and stroke into a certain relationship between the output voltage.
The third role: to change the resistance: When the potentiometer connected into two devices, the Linear Conductive Plastic Potentiometer in the stroke range can be a smooth continuous change in the resistance value, then the potentiometer is to play a role in changing the resistance.

The turns of the coil are bonded together by an adhesive

There are  types of potentiometers

that are used commonly: wire wound, carbon film and plastic film potentiometers. All these have been described below:
 Wire wound potentiometers: This potentiometer comprises of several rounds of wire wound around the shaft of the non-conducting material. The turns of the coil are bonded together by an adhesive. In this case the slider, connected to the body whose displacement is to be measured, moves on the potentiometer track and it makes contacts with successive turns of the coil. In this case the wire between the two successive turns is not covered by the slider, which limits the resolution of the wire wound potentiometers. However, the larger the number of turns of the coil, more is the resolution of the coil. The resolution is measured as the reciprocal of the number of turns of the coil. This devise has low noise and is mechanically rough and tough.

A standard potentiometer is a manually adjustable variable resistor with 3 terminals

A standard potentiometer is a manually adjustable variable resistor with 3 terminals. Two terminals are connected to both ends of a resistive element, and the third terminal connects to a sliding contact, called a wiper, moving over the resistive element. The position of the wiper determines the output voltage of the potentiometer. The high precision potentiometer

essentially functions as a variable voltage divider. The resistive element can be seen as two resistors in series(potentiometer resistance), where the wiper position determines the resistance ratio of the first resistor to the second resistor.
Types of potentiometers are also commonly known as a potmeter or pot. The most common form of potmeter is the single turn rotary potmeter. This type of pot is often used in audio volume control (logarithmic taper) as well as many other applications. Different materials are used to construct potentiometers, including carbon composition, cermet, wirewound, conductive plastic or metal film.

Huiren Electronics has types of potentiometers

Huiren's flat design of 0.5mm to 4mm makes them ideal for restricted installation conditions. The technical specifications respond to those of conventional precision potentiometers or even surpass these. Besides offering an attractive cost advantage, with custom designs they can be conveniently integrated into existing applications. Huiren Electronics has types of potentiometers，standard off-the-shelve and custom solutions flat, durable and fully sealed. All standard potentiometers

can be easily customized according to specific requirements.

standard potentiometer with a conductive plastic resistance track

standard potentiometer with a conductive plastic resistance track, manufactured with screen-printing technology. For applications in measuring, control and instrumentation.
The distinguishing features of the P2500 include an all metal case, ball-bearings,plastic potentiometers

collector track and elastomer-damped wipers for both resistance and collector tracks. Because of its reliability, long life, good linearity, high resolution, high operational speed and corrosion resistance, this component opens applications hitherto closed to conventional potentiometers. Special versions with different electrical travels and shaft dimensions are available.

provide these high resolution potentiometer of various specifications

By keeping track with the advanced market developments, we are offering our customers High precision potentiometer that find extensive applications in automotive industry. Our certified vendors design and develop these potentiometers with the aid of ultra-modern machines and latest technology utilizing premium quality raw material. We provide these high resolution potentiometer of various specifications to cater varied demands of our customers. Moreover, the provided potentiometers

are available at cost competitive prices.

standard potentiometer play an important role in factory automation

standard potentiometer play an important role in factory automation. They provide accurate, reliable, absolute position feedback to help automate today’s sophisticated machinery. Sensors must deliver value, be easy to set up, and interface easily into the host controller.
We know the manufacturing challenges of today are extreme, so we designed and built sensors to meet and exceed these demands, regardless of the application or environment. Innovation, proprietary technology and decades of experience were the key to the development of linear potentiometer position sensor

High precision potentiometer are designed for control applications

High precision potentiometer are designed for control applications where accuracy and high-reliability is important. These devices are available in conductive plastic, wirewound or element types, and in various sizes. Both single-turn and multiturn models are available. standard potentiometers typical applications include measuring linear distance, angles or rotations in production equipment, industrial test and measurement equipment, and medical equipment.

A standard potentiometer is a manually adjustable variable resistor with 3 terminals

A standard potentiometer is a manually adjustable variable resistor with 3 terminals. Two terminals are connected to both ends of a resistive element, and the third terminal connects to a sliding contact, called a wiper, moving over the resistive element. The position of the wiper determines the output voltage of the potentiometer. The potentiometer essentially functions as a variable voltage divider. The resistive element can be seen as two resistors in series(potentiometer resistance), where the wiper position determines the resistance ratio of the first resistor to the second resistor.
A high precision potentiometer is also commonly known as a potmeter or pot. The most common form of potmeter is the single turn rotary potmeter. This type of pot is often used in audio volume control (logarithmic taper) as well as many other applications. Different materials are used to construct potentiometers, including carbon composition, cermet, wirewound, conductive plastic or metal film.

Precision Rotary Potentiometer is mainly used for

Precision Rotary Potentiometer is mainly used for：
Power and braking control elements for railway vehicles as well as ship telegraphs
Rudder and propeller systems for ships
Control drives for systems in the field of energy management and chemical industry
Lifting gears and slewing mechanisms of cranes and excavators
Tail vanes for meteorological measurements
As dancer potentiometers for textile and paper machinery
As well as for measurements in the field of mechanical, apparatus and medical engineering
linear potentiometric displacement transducers have either a high-resolution element of conductive plastic or a high-resolution gold or constantan wire with various resistance and angle values.

Standard potentiometer applications

Standard potentiometers are rarely used to directly control significant amounts of power (more than a watt or so). Instead they are used to adjust the level of analog signals (for example volume controls on audio equipment), and as control inputs for electronic circuits. For example, a light dimmer uses a potentiometer to control the switching of a triac and so indirectly to control the brightness of lamps.
Preset potentiometers are widely used throughout electronics wherever adjustments must be made during manufacturing or servicing.
High precision potentiometer’s user-actuated potentiometers are widely used as user controls, and may control a very wide variety of equipment functions. The widespread use of potentiometers in consumer electronics declined in the 1990s, with rotary encoders, up/down push-buttons, and other digital controls now more common. However they remain in many applications, such as volume controls and as industrial position sensors.

Our high precision potentiometer is wire wound potentiometers with high accuracy

Our high precision potentiometer is wire wound potentiometers with high accuracy, high reliability and a long rotational life. They are used in a wide range of industrial applications and in railway applications. Each high resolution potentiometer is supplied at the required ohmic value in the range of feasible values.
Multiple-units potentiometers are achieved by combining several units.
These wire-wound potentiometers are constructed with:
high-accuracy, low-temperature coefficient windings
a modular housing of light alloy supporting a stainless steel shaft with 2 precision roller bearings (except for the "Economy" class)
critical parts (slider, slip ring) made in precious metal alloys
a specific wiper technology with a double triangular arm, and redundant internal connections on some models for maximum reliability
numerous options: special variation laws, electrical and/or mechanical travel, intermediary taps, terminal wires, shaft design, housing, etc.