SoftPot

Low Form-factor, Low Cost, Low Design Requirements

The SoftPot potentiometer is a linear sensing device used for tracking position and acquiring the preferred output in a variety of applications. It comes in lengths from 10mm to 2000mm and offers a low form factor of less than 0.5mm, making it the thinnest linear sensor available today.

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Product Description

SoftPot Potentiometer

Optimizing your manufacturing processes can increase your chances of gaining higher productivity and return on investment. Spectra Symbol, a trusted name in the linear position sensor manufacturing industry, provides components that will help achieve your business goals.

The SoftPot potentiometer is a linear sensing device used for tracking position and acquiring the preferred output in a variety of applications. It comes in lengths from 10mm to 2000mm and offers a low form factor of less than 0.5mm, making it the thinnest linear sensor available today. It is also economical and easy to use. You can simply mount it on a surface and activate it using a spring-loaded wiper.

What’s Good about SoftPot

The SoftPot works in multiple configurations, such as linear, serpentine, and elliptical. It operates in temperatures ranging from -45°C to 50°C and is ideal for products that need a sealed sensor with a tight form factor. It’s no wonder it became a popular option for clients in the medical, dental, and robotics industry. The SofPot is also a versatile sensor that can operate by human touch. It can provide the desired linear output regardless of the shape of the product it’s attached to.


• Use in Actuators:

  • Actuators are found wherever position is automated.
  • The membrane potentiometer technology offers a low form-factor for the feedback it provides.
  • Recommended for use whenever absolute position is required.

machines in factory


 

• Design into Hand-held Medical Devices

  • The SoftPot is ideal for medical environments that rarely gets close to 50°C but require a sealed sensor and a tight form-factor.
  • Thin-SoftPot designs are attractive to disposable instrumentation for its high-quantity, low cost requirements.

Contact us today to inquire about our linear position sensors and get a free quote.handheld medical devices

 

In simple terms, the SoftPot membrane potentiometer is a resistive element, which comprises a conductive resistor, a sealed encasement and a simple wiper assembly. A membrane potentiometer can also function as a voltage divider.

The SoftPot is a three-wire system with two resistive output channels and an electrical collector channel

potentiometer_exploded_view

By pressing a wiper down onto the top circuit the SoftPot produces the desired electrical output.

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The “wiper” is a non-conductive mechanism that depresses the top circuit actuating the potentiometer from the outside of the element. The top and bottom circuits are separated by 0.15mm (0.006″) of spacer adhesive build-up and contact between the circuit occurs by pressure (usually 1-3 Newtons) from the wiper on the top circuit, pushing down until the top circuit connects with the bottom circuit to create a potentiometric output.

potentiometer-press

The construction of the wiper design can adapt to any application because most materials can serve as the wiper: plastics, metals, sliders, rollers, wheels, etc. Also, the SoftPot can also be manually (hand) actuated.

SoftPot Data Sheet (PDF)

Use Cases

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