What is a chain potentiometer?
The string postntiometer is a type of linear measuring device that uses a cable charged with springs or a "string" on a coil. These usually generate an electrical signal based on the amount of cable that is pulled from the coil. The string Potetiometer is sometimes shortly called "string pots", in many technical applications it is common.
These devices were first developed for the air industry at the age of 60. This technology allows aircraft engineers to carefully monitor the position of control surfaces such as Ailerons and Rudders. However, the use of string pots extends far from the aircraft and potentiometers are often used in industrial automation and robotic systems.
All types of potentiometers act as variable resistors. This means that they are able to create many different amounts of electrical resistance, depending on their position. The high level of resistance slows the flow of electric current, while low levels make it easy to pass by electricity. Standard Dimmer Knnar for example will receive JS LightsOU variable potentiometers that allow users to manually adjust the current flow. The string potentiometer works using the same principle.
The cable inside the string potentiometer is connected to the spring. Once the end of the cable is pulled, it is dragged from the coil and causes the internal potentiometer to be rotated. The return mechanism keeps the tension on the cable to prevent relaxation, and also pulls the string back to the coil when the end is released.
applications that use potentiometers of the string usually have the coil safely in one place. The end of the cable is usually connected to a moving object, such as a sliding hydraulic rod or arm of an industrial machine. The electrical resistance from the internal potentiometer increases when the cable is downloaded and decreases when it returns.
Signals from the potentiometer string can be used in several ways. Computers and industrial drivers are able to read the level of resistance and convert JEven to measure distance. For example, reading a computer can display the height of the hydraulic cylinder in centimeters or inches. The level of resistance generated from the chain streams can also be used directly in the electrical circuit to switch the device as soon as the preset threshold is met.
Not all sticks of chains have the same amount of accuracy. Some use very accurate internal potentiometers and are able to measure distance variations below a centimeter. In general, more precise devices are also more expensive. Many of them are contained in protective cases that allow them to work in a humid or dirty environment without being damaged.