The Position Sensor (Product Code: SLE/EAM/22) is a precision linear potentiometer whose resistance output changes between 0–5kΩ in step with the position of its slider, so small movements can be converted into an electrical reading. Teachers use it to follow slow movements such as the expansion of metals, and students find almost limitless scope for inventive investigations of their own. It is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, a physics instruments supplier in India to schools, colleges and training institutes.
| Parameter | Detail |
|---|---|
| Sensor type | Precision linear potentiometer (linear position sensor) |
| Output | Resistance changing between 0–5kΩ with linear position |
| Mounting | Sturdy acrylic base; the whole assembly can be clamped and used in any position |
| Connections | Brought out to 4mm sockets |
| Calibration aid | Bolt-on screw thread jig enables calibration to be carried out easily |
| Dimensions | 180 x 70 x 40mm overall |
Because resistance varies linearly with slider position, the sensor becomes a distance-measuring device once it has been calibrated. Using the bolt-on screw thread jig (similar to the arrangement described in the Advancing Physics notes), students advance the slider by known amounts, record the resistance at each step and draw a calibration graph. They can then attach the slider to a rod being heated, a spring being loaded or any slowly moving object and convert resistance readings straight into displacement.
Classic applications in physics lab equipment in India include measuring the linear expansion of a metal rod, following the extension of a spring, and tracking small movements in project work. The acrylic base can be clamped in a stand horizontally or vertically, and the 4mm sockets accept standard leads to a multimeter or into a potential divider circuit if a voltage output is preferred.
The sensor is made by Jain Scientific Equipments Private Limited, which operates under the ScienceLab name from Ambala, Haryana and builds measurement and demonstration apparatus for education. For institutional and tender buyers who need vendor registration details, the company’s identifiers are GSTIN 06AAECJ8618A1ZT and LEI 3358004HRD1JIVXKYX49. Our company profile gives further background.
Items commonly used with the sensor in expansion and displacement experiments:
Find further sensors and circuit apparatus in our Electricity and Magnetism range.
What output does the Position Sensor give?
A resistance that changes between 0–5kΩ linearly with position. Read it on an ohmmeter, or wire the sensor as a potential divider to obtain a voltage.
How is it calibrated?
A bolt-on screw thread jig lets you move the slider by known amounts and record the resistance at each step. Please contact us to confirm whether the jig is part of your order.
Can it be mounted vertically?
Yes. The sensor sits on a sturdy acrylic base, and the whole assembly can be clamped and used in any position.
Is it suitable for measuring the expansion of metals?
Yes, monitoring movement such as the expansion of metals is one of its intended uses. The heating apparatus and rod are separate items.
How should the sensor be cared for?
Move the slider smoothly without forcing it past its ends, keep the track free of dust, and avoid loads that could bend the slider.
Is a calibration certificate available?
Certificate availability should be discussed with us at the enquiry stage; in class, the sensor is normally calibrated by the students themselves using the jig.
Do you accept bulk and export orders?
Yes, for schools, colleges and distributors in India and international markets. Share quantities and delivery details with your enquiry.
Request pricing for the Position Sensor through our contact page, or add it and any stands, clamps and meters to the enquiry cart for a single combined quotation.
Last updated: 24 September 2026