DMWY Full-Bridge Strain Displacement Sensor

Product Introduction

The DMWY Full-Bridge Strain Displacement Sensor is designed to measure linear displacement and displacement-related mechanical changes in structural and engineering applications. It converts mechanical displacement into electrical signals through a full-bridge strain gauge circuit, allowing measurement data to be collected and analyzed using compatible static or dynamic strain acquisition systems.

With multiple measurement ranges, a compact structure, and customizable dimensions, the DMWY sensor is suitable for static, quasi-static, and low-frequency dynamic displacement measurements. It is widely used in civil engineering, bridge and tunnel monitoring, hydropower projects, material mechanics testing, aviation research, and other scientific and industrial applications.

Performance Features

• Full-Bridge Strain Gauge Design: Uses a 350 Ω full-bridge circuit for displacement signal conversion.

•   Multiple Measurement Ranges: Available in ranges from 5 mm to 200 mm to accommodate different testing requirements.

•   High Measurement Accuracy: Accuracy of ≤0.3% F.S.

•  Static and Dynamic Measurement: Suitable for static, quasi-static, and low-frequency dynamic displacement testing.

•   Flexible Installation: Supports bottom or side cable outlets.

•   Customizable Dimensions: Sensor dimensions can be customized according to project requirements.

• Long Service Life: The theoretical service life is up to 10 million cycles, depending on actual test conditions.

• System Compatibility: Can be used with dynamic and static strain data acquisition systems, cables, and related equipment.

Working Principle

The DMWY sensor operates based on the strain gauge measurement principle. When the measured object undergoes linear displacement, the sensor's internal elastic structure deforms, causing a change in the resistance of the strain gauges.

The full-bridge circuit converts this resistance change into an electrical signal proportional to the applied displacement. The output signal is then transmitted to a compatible static or dynamic strain acquisition instrument for measurement, recording, and analysis.

Technical Parameters

Application Scenarios

The DMWY full-bridge strain displacement sensor is suitable for:

• Civil Engineering: Structural displacement and deformation monitoring in engineering projects.

•  Bridge Monitoring: Measurement of displacement and structural response in bridge components.

• Tunnel Engineering: Monitoring of displacement and deformation in tunnel structures.

• Hydropower Projects: Displacement testing of hydraulic and hydropower structures.

•  Material Mechanics: Linear displacement measurement during material and mechanical testing.

• Aviation Research: Displacement testing in aviation-related research and development.

•  Scientific Research and Production: Static, quasi-static, and low-frequency dynamic displacement experiments.

Product Comparison

Frequently Asked Questions (FAQ)

1. What is the DMWY full-bridge strain displacement sensor used for?

It is used to measure linear displacement and displacement-related deformation in civil engineering, bridge and tunnel monitoring, hydropower, material mechanics, and scientific research.

2. What measurement ranges are available?

The standard measurement ranges are 5, 10, 20, 30, 50, 100, and 200 mm.

3. What is the measurement accuracy of the DMWY sensor?

The specified accuracy is ≤0.3% F.S., where F.S. refers to full scale.

4. Does the sensor support static and dynamic measurements?

Yes. It can be used for static, quasi-static, and low-frequency dynamic displacement measurements when connected to a compatible strain acquisition system.

5. What type of bridge circuit does this sensor use?

The DMWY sensor uses a 350 Ω full-bridge strain gauge circuit.

6. What is the full-scale output of the sensor?

The approximate full-scale output is 10,000 microstrain (με).

7. How is the DMWY sensor connected?

The four-wire connections are red (A), green (B), white (C), and black (D). It should be connected according to the corresponding terminals of the acquisition instrument.

8. Can the sensor dimensions be customized?

Yes. The sensor dimensions can be customized to meet specific installation and measurement requirements.

9. What is the theoretical service life of the sensor?

The theoretical service life is approximately 10 million cycles. Actual service life depends on the operating environment, displacement conditions, and testing frequency.