Inst ToolsInst ToolsInst Tools
  • Ask
  • Courses
  • Videos
  • Q & A
    • Interview
      • Instrumentation
      • Electronics
      • Electrical
      • Practical Questions
    • MCQ
      • Instrumentation MCQ
      • Electrical MCQ
      • Electronics MCQ
      • Control Systems MCQ
      • Analog Electronics MCQ
      • Digital Electronics MCQ
      • Power Electronics MCQ
      • Microprocessor MCQ
      • Multiple Choice Questions
  • EE
    • Electronics
      • Electronics Q & A
      • Electronic Basics
      • Electronic Devices & Circuits
      • Electronics Animation
      • Digital Electronics
    • Electrical
      • Electrical Basics
      • Electrical Q & A
      • Power Electronics
      • Electrical Machines
      • Electrical Animation
      • Power Systems
      • Switchgear & Protection
      • Transmission & Distribution
  • Measure
    • Control Valves
    • Calibration
    • Temperature
    • Pressure
    • Flow
    • Level
    • Analyzers
    • Switches
    • Vibration
    • Solenoid Valve
  • Control
    • PLC Tutorials
    • Control Systems
    • Safety Instrumented System (SIS)
    • Communication
    • Fire & Gas System
  • More
    • Design
    • Tools
    • Animation
    • Basics
    • Formulas
    • Standards
    • TextBooks
    • Common
    • Software
    • Excel Tools
    • Erection & Commissioning
    • Process Fundamentals
    • Videos
    • Books
Search
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Reading: Strain Gauge Load Cell
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • PLC Tutorials
  • Control Systems
Search
  • Ask
  • Courses
  • Videos
  • Q & A
    • Interview
    • MCQ
  • EE
    • Electronics
    • Electrical
  • Measure
    • Control Valves
    • Calibration
    • Temperature
    • Pressure
    • Flow
    • Level
    • Analyzers
    • Switches
    • Vibration
    • Solenoid Valve
  • Control
    • PLC Tutorials
    • Control Systems
    • Safety Instrumented System (SIS)
    • Communication
    • Fire & Gas System
  • More
    • Design
    • Tools
    • Animation
    • Basics
    • Formulas
    • Standards
    • TextBooks
    • Common
    • Software
    • Excel Tools
    • Erection & Commissioning
    • Process Fundamentals
    • Videos
    • Books
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Common > Strain Gauge Load Cell

Strain Gauge Load Cell

Last updated: May 19, 2019 7:25 pm
Editorial Staff
Common
1 Comment
Share
3 Min Read
SHARE

Principle of Strain gauge load cell

When steel cylinder is subjected to a force, it tends to change in dimension.

Contents
Principle of Strain gauge load cellConstruction of strain gauge Load cellOperation of strain gauge Load cellUses of Strain Gauge Load Cell

On this cylinder, if the strain gauges are bonded, the strain gauge also is stretched or compressed, causing a change in its length and diameter.

This change in dimension of the strain gauge causes its resistance to change. This change in resistance or output voltage of the strain gauge becomes a measure of applied force.

Construction of strain gauge Load cell

Construction of strain gauge Load cell

The main parts of the strain gauge load cell are as follows.

They are a cylinder made up of steel on which four identical strain gauge are mounted and out of four strain gauges, two of them (R1 and R4) are mounted along the direction of the applied load(vertical gauges).

The other two strain gauges (R2 and R3 Horizontal gauges) are mounted circumferentially at right angles to gauges R1 and R4.

Operation of strain gauge Load cell

Operation of strain gauge Load cell

Let’s study the operation in two cases

Case 1

When there is no load (force) on the steel cylinder, all the four gauges will have the same resistance.

As the terminals N and P are at the same potential, the wheat stone bridge is balanced and hence the output voltage will be zero.

Case 2

Now the load (force) to be measured (say compression force) is applied on the steel cylinder. Due to this, the vertical gauges R1 and R4 will under go compression and hence there will be a decrease in resistance.

At the same time, the horizontal gauges R2 and R3 will under go tension and there will be an increase in resistance. Thus when strained, the resistance of the various gauges change.

Now the terminal N and P will be at different potential and the change in output voltage due to the applied load (force) becomes a measure of the applied load force when calibrated.

Uses of Strain Gauge Load Cell

  • Strain gauge load cells are used when the load is not steady.
  • Strain gauge load cells are used in vehicle weigh bridges, and tool force dynamometers.
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !
Difference Between Microcontroller and Microprocessor
Robotic Process Automation (RPA) in AI – Market Growth & Business Benefits
Encoder Working Principle
What is Transparent Solar Panel? – Working Principle and Theory
What is an IP address? How to Set IP Address of the Computer?
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
1 Comment
  • G ABBAS KHAN says:
    September 30, 2020 at 10:09 am

    in the 1st figure resistance R1 is repeated twice rather than R1 AND R2.

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
208kSubscribersSubscribe
38kFollowersFollow

Categories

Recent Comments

  • Guifty Shimica on Top Non-PLC Certification Courses for Automation Professionals
  • Guifty Shimica on Top Non-PLC Certification Courses for Automation Professionals
  • MIHARITSOA Aina Sitraka on Top Non-PLC Certification Courses for Automation Professionals
  • Vaishnavi on Free Instrumentation Course for Trainee Engineers

Related Articles

Modern Instrumentation and Control Systems

Migrate From Obsolete to Modern Instrumentation and Control Systems

Gamp 5 Compliance in Pharmaceutical Industry

What is Gamp 5 Compliance in Pharmaceutical Industry?

Use of Isolator in Microwaves

Use of Isolator in Microwaves

Career Scope in Electrical Engineering

Career Scope in Electrical Engineering

Functions of Rupture Disc

Why is a Rupture Disc Required? – Functions & Selections

Optical Modulation

What is Optical Modulation? – Methods of Optical Modulation

Absorption chiller

Capacity Control of Absorption Chillers

Circular chart recorder Applications

What is Circular Chart Recorder?

More Articles

hygrometer for measuring moisture

Difference Between Absolute and Relative Humidity

What is an Actuator - Different Types of Actuators

What is an Actuator? – Different Types of Actuators

Stability in Frequency Domain

Cascade Compensation in Frequency Domain

ECE Projects - IEEE and IoT Projects List

ECE Projects – IEEE and IoT Projects List

Globe Control Valve Animation

Basics of Globe Valves

Difference between Globe Valve and Gate Valve

Difference between Globe Valve and Gate Valve ?

Digital Electronics Multiple Choice Questions

Shift Registers Objective Questions

Forward Bias

Rectifiers, Forward Bias and Reverse Bias

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?