Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Pneumatic Load Cell Principle
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Common > Pneumatic Load Cell Principle

Pneumatic Load Cell Principle

Last updated: April 7, 2018 6:29 am
Editorial Staff
Common
No Comments
Share
2 Min Read
SHARE

Principle of Pneumatic Load Cell

If a force is applied to one side of a diaphragm and an air pressure is applied to the other side, some particular value of pressure will be necessary to exactly balance the force. This pressure is proportional to the applied force.

Pneumatic Load cell

Pneumatic Load Cell Principle

The main parts of a pneumatic load cell are as follows:

  • A corrugated diaphragm with its top surface attached with arrangements to apply force.
  • An air supply regulator, nozzle and a pressure gauge arranged as shown in figure.
  • A flapper arranged above the nozzle as shown in figure.

Operation of Pneumatic Load cell

 The force to be measured is applied to the top side of the diaphragm. Due to this force, the diaphragm deflects and causes the flapper to shut-off the nozzle opening.Now an air supply is provided at the bottom of the diaphragm. As the flapper closes the nozzle opening, a back pressure results underneath the diagram. This back pressure acts on the diaphragm producing an upward force.

Air pressure is regulated until the diaphragm returns to the pre-loaded position which is indicated by air which comes out of the nozzle. At this stage, the corresponding pressure indicated by the pressure gauge becomes a measure of the applied force when calibrated.

Note:

  • The pneumatic load cell can measure loads upto 2.5*10^3 Kgf.
  • The accuracy of this system is 0.5 percent of the full scale.
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 !

Continue Reading

IPv4 vs IPv6 – What’s the Difference Between IP addresses?
Why is Instrumentation used in Industries?
Instrumentation Functional diagrams
Difference Between Skin Effect and Proximity Effect
Hard-Wired Control Logic for the Pressure Alarm
Why is a Battery used in a Vehicle?
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

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

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Measurement Unit Conversions
Awesome YouTube Channels About Tech and Engineering
What is a Cable Gland ?
Difference Between NPT, BSPP and BSPT Seals
Supermarket Ventilation System – HVAC Basics
What is PPE? – Types – Personal Protection Equipment
Wet Dust Suppression System
Difference Between Differential Mode and Common Mode

Keep Learning

Infrastructure Monitoring in Your Business Operations

Infrastructure Monitoring in Your Business Operations

Basic Principles of Solar Technology

Basic Principles of Solar Technology

Cable Shielding - Purpose, Selection, Grounding

Cable Shielding – Purpose, Selection, Grounding

Magnetic Tape Recorder Principle

What is Magnetic Tape Recorder ?

PM of Instrument Air Compressor

PM of Instrument Air Compressor in Oil & Gas Plants

HVAC Principle and Theory

Recommendations to HVAC Engineers

What is a Humidifier

What is a Humidifier? – Types, Uses, Working Principle

Different Types of HVAC Applications

Different Types of HVAC Applications

Learn More

Three Phase Induction Motor Interview Questions & Answers

Three Phase Induction Motor Interview Questions & Answers

Quiz on Electrical Safety and Equipment Grounding

130 Quiz on Electrical Safety and Equipment Grounding

Self Actuated Pressure Control Valve Principle

Self Actuated Pressure Control Valve Principle

light-emitting-diode-theory

Light Emitting Diode Operation

Control System Basic Wiring Practice Animation

PLC Connection between Instrument, Junction Box, Marshalling & System Cabinet

Power Electronics Objective Questions

Power Electronics Objective Questions

repairs of welding cast refractory lined box over the hot spots

Too often done riskily repaired Roof Hot Spots eliminated forever

Instrumentation in Industries

Why is Instrumentation used in Industries?

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

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?