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Strain Gauge
The Strain Gauge (Product Code: SLE/EAM/21) lets students watch how the electrical resistance of a gauge changes when the steel blade it is bonded to is bent under strain. The gauge’s terminations are brought out to a resistive bridge network on the main support, and the bridge output lead plugs straight into an Instrumentation Amplifier so the tiny changes become measurable. Manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, it suits A-level style physics, diploma and engineering lab equipment in India where sensors and materials are taught together.
Specifications
| Parameter | Detail |
|---|---|
| Sensing element | Strain gauge sensor bonded to a steel strip (blade) |
| Circuit | Terminations brought out to a resistive bridge network mounted on the main support |
| Output | Output lead from the bridge interfaces directly with the Instrumentation Amplifier |
| Measurement | Monitors tiny resistance changes when the blade is under strain |
| Spares | Replacement blade/strain gauge available separately |
| Dimensions | 280 x 160 x 65mm overall |
Typical Use
A strain gauge is a fine resistive track that stretches or compresses with the surface it is glued to, changing its resistance very slightly. Placing it in a bridge network turns that small change into an out-of-balance voltage, which the amplifier then raises to a level a multimeter can show. In class, students deflect the blade by increasing amounts, record the amplified output each time and plot output against deflection or load to see how linear the response is. The same set-up opens discussion of how weighing scales, load cells and structural monitoring systems work.
For consistent results, let the bridge settle after switching on, note a zero reading with the blade unloaded, and apply strain gently so the blade is never permanently bent. As a piece of mechanics lab equipment in India it bridges the gap between materials science and electrical measurement, and because the blade and gauge can be replaced separately, the main unit remains usable if a gauge is ever damaged.
Manufacturer
ScienceLab is the brand of Jain Scientific Equipments Private Limited, an Ambala, Haryana manufacturer of sensor, electricity and physics apparatus for teaching laboratories. Visit our company profile to learn how the company works with schools, colleges and distributors.
Related Electricity and Magnetism Equipment
Equipment that completes a strain-measurement experiment:
- Instrumentation Amplifier — the matching amplifier that accepts the bridge output lead directly
- Digital Multimeter — reads the amplified bridge output
- Mini Strain Gauge — a compact alternative for smaller benches or comparison work
- Strain Gauge Trainer — a materials-testing trainer for extending strain studies at engineering level
- Stackable Leads — links the amplifier output to the meter
See all sensors and demonstration units in the Electricity and Magnetism category.
Frequently Asked Questions
Can I read the Strain Gauge without an amplifier?
Not usefully. The resistance changes are tiny, so they need to be monitored by a suitable system such as the Instrumentation Amplifier, whose input accepts the bridge output lead directly.
Is the bridge circuit included?
Yes. The gauge terminations are brought out to a resistive bridge network mounted on the main support, so no separate bridge wiring is needed.
What if the blade or gauge gets damaged?
A replacement blade/strain gauge is available separately. Quote the product code SLE/EAM/21 when you contact us for spares.
How much bench space does it need?
The unit measures 280 x 160 x 65mm overall; allow extra room for the amplifier and meter beside it.
How should the blade be looked after?
Load it gradually, avoid bending it beyond its elastic range, and store the unit flat and dry. Keep the output lead free of sharp kinks.
Do you provide warranty information?
Warranty terms are stated with each quotation; ask our team through the contact page if you need them before ordering.
Request a Quote
For a quotation on the Strain Gauge, with or without the matching amplifier and spare blades, use our contact page or place the items in the enquiry cart. We supply institutions in India and international markets.
Last updated: 24 September 2026
