Push-pull gauges, also known as force gauges or tension meters, come in various types to cater to different applications and force measurement requirements. Here are the common types of push-pull gauges:
1. Mechanical Push-Pull Gauges:
Analog Mechanical Gauges: These gauges use mechanical components like springs and levers to measure force. The applied force causes a displacement in the mechanical components, which is then indicated on an analog scale.
Digital Mechanical Gauges: Similar to analog mechanical gauges, but they have digital displays for more accurate readings. These gauges use strain gauges and other sensors to convert mechanical deformation into electrical signals, which are then displayed digitally.
2. Digital Push-Pull Gauges:
Digital Force Gauges: These gauges use strain gauge technology to provide digital force readings. They are highly accurate and often come with various features such as peak hold, data logging, and USB connectivity for data transfer and analysis.
Wireless Digital Force Gauges: These gauges operate wirelessly and can transmit force measurements to a remote display or computer for real-time monitoring and analysis.
3. Motorized Push-Pull Gauges:
Motorized Force Gauges: These gauges have a motorized mechanism that applies and maintains a constant force. They are used in applications where a continuous and consistent force needs to be applied, such as in certain material testing scenarios.
4. Specialized Push-Pull Gauges:
Pneumatic and Hydraulic Force Gauges: These gauges use air pressure (pneumatic) or hydraulic pressure (hydraulic) to measure force. They are suitable for applications where electronic devices are not ideal due to the presence of explosive or hazardous environments.
Ultrasonic Force Gauges: These gauges utilize ultrasonic waves to measure force. They are often used in non-destructive testing applications.
5. Load Cells with Digital Displays:
Load Cells: While not exactly push-pull gauges, load cells are sensors that can measure force in various directions. They can be connected to digital displays or data acquisition systems to provide accurate force measurements.
6. Accessories and Attachments:
Attachments: Push-pull gauges often come with a variety of attachments and grips to accommodate different testing requirements, such as hooks, flat tips, chisel tips, and v-grooves.
The choice of push-pull gauge depends on the specific application, the range of force to be measured, the required accuracy, and any environmental or safety considerations. It’s important to select the appropriate type of gauge and accessories to ensure accurate and reliable force measurements for your particular needs.
Calibration of push-pull gauges
Calibration of push-pull gauges, also known as force gauges or tension meters, is essential to ensure their accuracy and reliability in measuring force. Proper calibration guarantees that the readings provided by the gauge are precise and consistent. Here are the details of push-pull gauge calibration:-
1. Equipment and Tools:
Reference Standard: A calibrated force standard, like a deadweight tester or load cell, whose accuracy is traceable to national or international standards.
Calibration Fixture: A specialized fixture or adapter to hold the force gauge securely during the calibration process.
Data Acquisition System: Software or hardware tools to record and analyze the readings.
Weights: For calibrating in the pull mode, known masses can be used to apply a specific force.
2. Calibration Procedure:
Setup: Attach the force gauge to the calibration fixture or adapter securely.
Zero Adjustment: Ensure the gauge reads zero when no force is applied. If not, adjust the zero balance according to the manufacturer’s instructions.
Calibration in Push Mode:
1- Apply a known force using the calibrated reference standard.
2-Record the reading on the force gauge.
3-Compare the gauge reading with the applied force and note the difference.
4-Adjust the gauge reading if necessary, based on the variance observed during the calibration.
Calibration in Pull Mode:
1-Attach a known mass to the force gauge to create a specific force.
2-Record the reading on the force gauge.
3-Compare the gauge reading with the applied force and note the difference.
4-Adjust the gauge reading if necessary, based on the variance observed during the calibration.
3. Documentation:
Calibration Certificate: After calibration, a certificate is issued, detailing the gauge’s serial number, calibration date, calibration method, equipment used, and the calibration results.
Traceability: Ensure that the calibration is traceable to international or national standards, providing a clear lineage of measurements.
4. Regular Maintenance:
Calibration Interval: Establish a regular calibration interval based on the gauge’s usage, environmental conditions, and manufacturer’s recommendations.
Handling: Handle the gauge carefully, avoiding physical damage, which can affect its accuracy.
Environment: Store and use the gauge within specified temperature and humidity ranges to maintain its calibration.
5. Certification and Compliance:
Compliance: Ensure that the calibration process complies with relevant industry standards and regulations.
Certification: Some industries may require certification from accredited calibration laboratories to meet specific quality standards.
Always refer to the manufacturer’s guidelines and specifications for the exact calibration procedure for your push-pull gauge, as the process might vary slightly between different models and brands.
