3352H-1-103LF

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A thumbwheel potentiometer is a type of analog electromechanical transducer that is specifically designed to convert linear or rotary motion into a proportional electrical output. It is used to precisely measure variables such as position, speed, tension, force, current, voltage, and resistance. The device features a non-contacted sensing mechanism and a digital display that is operated by a thumbwheel. The thumbwheel is used to dial up a specific resistance value and output a predefined electrical signal that is proportional to the knob movement.

One of the most popular thumbwheel potentiometers is the model 3352H-1-103LF. This device is both cost-effective and easy to use in a wide range of applications. It is constructed from premium quality materials and features a durable design that is able to withstand harsh industrial environments. The potentiometer also offers excellent linearity, temperature stability, and ESD protection for reliable performance.

Application Field

Due to its robust design and reliable performance, the 3352H-1-103LF thumbwheel potentiometer is suitable for use in a variety of different industrial applications. These include motor control systems, laboratory testing equipment, robotics, and military applications. The device can also be used in high-precision position feedback systems, such as those used in X-ray medical scanners or motion control systems. Furthermore, the 3352H-1-103LF can be used to measure high-precision movements in motion control and vibration frequency sensing systems.

Working Principle

The 3352H-1-103LF thumbwheel potentiometer consists of two parts: the sensing element and the mounting plate. The sensing element is a printed circuit board with a groove that contains a conductive layer of graphite. The graphite is connected to two electrical leads that connect to the other end of the potentiometer. The mounting plate has a small thumbwheel that when rotated creates a resistance change in the graphite layer, which is then converted into an electrical output.

When the thumbwheel is turned, the graphite layer is compressed and the resistance value increases. The increased resistance is detected by the leads at the other end of the potentiometer, which activates the digital display to show the new resistance value. The device offers two modes of operation: linear and logarithmic. In linear mode, the amount of resistance change is linear—meaning that the resistance reading increases at the same rate as the thumbwheel is rotated. In logarithmic mode, the resistance reading increases exponentially with the degree of rotation.

The 3352H-1-103LF thumbwheel potentiometer is designed to be highly accurate and reliable. It is able to measure movements with outer scale accuracy of 0.5 % and repeatability of 0.2 %. This makes the device suitable for use in applications where precision and repeatability are essential, such as medical imaging equipment, laboratory testing equipment, and motion control systems.

The 3352H-1-103LF thumbwheel potentiometer is an effective and reliable tool for measuring linear or rotary motion and converting it into a useful electrical signal. With its robust design and precise accuracy, the device is suitable for a variety of industrial applications, from motor control and medical imaging to motion control and vibration frequency sensing.

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