Strain Gauge | Working | Types | Applications And Advantages

Introduction

A strain gauge is like a smart sensor that senses changes in resistance when you apply force, pressure, tension, or weight. image credits - engineering.com

Working principle of strain gauge

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Requirements of Strain gauge material

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Types of Strain Gauges

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Based on Mounting

[{"selector":"#anim-281b1351-0b87-4d03-962b-cea8d37ed849","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-de8fc051-e481-47c1-bc9b-1920918fa28d","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-33e86e93-c939-4fe9-94ac-0ea20b2e7c4e","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-3bf821ff-b99b-4271-b725-3a77f09fe8dd","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-dbf2b475-7d22-4482-9341-4fccda5c795e","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-e3c27ee1-6529-490e-85f7-170ce8f7d3f3","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-03d634b7-9ecf-487c-a4cc-e198b474d89d [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.94707879789108%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] 1. Bonded Strain Gauge 2. Unbonded Strain Gauge image credits - unplash

Based on Construction

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Applications of Strain Gauge

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Advantages of Strain Gauge

[{"selector":"#anim-542cac5f-5d72-4ee3-9d47-b1467249f93f","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-77b505d0-786e-40c2-a841-7d3431f147c8","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-747980c1-ef93-4044-9696-02cf3623b0c9","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-51751b59-135b-4265-abc8-f620b6d2a4ed","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-94e42ceb-1cd0-4f7c-b189-5c6dec424898","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-62d8159e-c4f2-4d1f-bdcd-641c1c6c7327","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-bcc0150b-e048-4dd6-9f37-819d6473995f [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.52372251562389%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] (i) No moving parts, so no wear and tear. (ii) They offer high precision. (iii) Small and cost-effective. (iv) High-frequency bandwidth capability. image credits - MDPI

Disadvantages of Strain Gauge

[{"selector":"#anim-8b366b1d-acfd-4756-82ac-8abc2b9c5f3f","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-ed42bdf8-3d58-4b0f-aede-6f8a50147163","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-a1328908-6f91-45ba-a982-2ae5aa4a6027","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-7fa1eed9-2f32-4de3-a852-43cbb4009f92","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-106bc017-3c1f-497f-89aa-1fca7db51781","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-a5c5e897-fcb6-4e68-adcf-8caf948a038a","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6a035c19-9287-40bf-8ef0-307edbe4f53c [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-28.90624987200394%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] (i) Exhibits non-linear behavior. (ii) Highly sensitive to temperature changes. (iii) Requires regular calibration. (iv) Manual application of these gauges is time-consuming and costly, a significant drawback. image credits - unplash Read more

[{"selector":"#anim-2a36d683-09f9-4d98-80a5-6d7d94e5a391","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-62b44b1c-2aa8-4b47-84b1-ab7b811a02d0","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-b1a9e2ec-0c11-4933-8179-78c88c331ae8 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-25.008218779701803%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Read Also