DMTY-12 Strain Gauge Earth Pressure Cell

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DMTY-12 Strain Gauge Earth Pressure Cell

Product ID：CLQTlxlcly068

Price: Please inquire PDF Format

Supply Ability:500 SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberDMTY-12

Brand NameNJDANMO

Payment TermsTT，PAYPAL，Alibaba.com Pay

DMTY-12 Strain Gauge Earth Pressure Cell
Product Introduction
The DMTY-12 Strain Gauge Earth Pressure Cell is a miniature geotechnical sensor specifically designed for measuring stress within or around soil, sand, slurry, and model piles during laboratory and model testing applications. It can accurately monitor both static and dynamic earth pressure changes, including vibration-induced stress.
Using a full-bridge strain gauge circuit, the sensor effectively compensates for temperature variations, ensuring stable and reliable measurements under changing environmental conditions. Its compact size makes it ideal for embedded measurements in small-scale geotechnical models where conventional sensors cannot be installed.

Features
• Miniature design with only 12 mm diameter
• Suitable for soil, sand, slurry, and model pile stress measurement
• Supports both static and dynamic pressure monitoring
• Full-bridge strain gauge structure for improved stability
• Effective temperature compensation minimizes thermal drift
• High measurement accuracy up to ±0.5% F.S.
• Excellent sensitivity for low-pressure applications
• Easy integration with static and dynamic strain data acquisition systems
•I deal for geotechnical centrifuge and laboratory model tests

Working Principle
The DMTY-12 Earth Pressure Cell operates based on strain gauge technology. External soil pressure acting on the sensing diaphragm causes slight deformation of the elastic element. The bonded strain gauges detect this deformation and convert it into an electrical resistance change.
The full-bridge Wheatstone circuit transforms the resistance variation into a measurable voltage output. Because all strain gauges are arranged in a full-bridge configuration, temperature-induced resistance changes are automatically compensated, improving measurement accuracy and long-term stability.
The resulting signal is collected by a dynamic or static strain acquisition system and converted into pressure values for analysis.

Technical Specifications

Parameter	Specification
Model	DMTY-12
Sensor Type	Strain Gauge Earth Pressure Cell
Diameter	12 mm
Thickness	4.2 mm
Measuring Range	0.05 – 10 MPa
Accuracy	≤ ±0.5% F.S.
Bridge Resistance	350 Ω, Full Bridge
Full Scale Output	Approx. 1000 με, up to 3000 με
Measurement Mode	Static & Dynamic
Cable Exit	Side Exit
Wiring Method	Red-Yellow-Blue-Black (A-B-C-D)
Gauge Factor (K)	K = 2.0
Temperature Compensation	Full Bridge Circuit
Compatible Equipment	Static/Dynamic Strain Data Logger, Extension Cable

Typical Applications
• Geotechnical model testing
• Soil mechanics research
• Earth pressure monitoring
• Model pile load testing
• Foundation engineering experiments
• Slurry pressure measurement
• Sand stress distribution studies
• Retaining wall model tests
• Tunnel model experiments
• Dynamic vibration and seismic response analysis
• Laboratory geotechnical instrumentation

Comparison with Conventional Earth Pressure Cells

Feature	DMTY-12 Strain Gauge Type	Conventional Large Pressure Cell
Sensor Size	Ultra-compact	Larger dimensions
Model Test Suitability	Excellent	Limited
Dynamic Measurement	Supported	Often limited
Static Measurement	Supported	Supported
Temperature Compensation	Full Bridge Automatic Compensation	Basic or external compensation
Installation Disturbance	Very low	Moderate
Sensitivity	High	Medium
Small-Scale Soil Models	Ideal	Less suitable

FAQ
What is the DMTY-12 Earth Pressure Cell used for?

It is used to measure stress changes inside soil, sand, slurry, and around model piles in geotechnical laboratory experiments and model tests.
Can the sensor measure vibration-induced soil pressure?
Yes. The DMTY-12 supports both static and dynamic measurements, making it suitable for vibration and seismic simulation studies.
How does the sensor reduce temperature effects?
The sensor uses a full-bridge strain gauge circuit that automatically compensates for temperature-induced resistance changes, improving measurement stability.
What data acquisition equipment is required?
The sensor is typically connected to a static or dynamic strain acquisition system or strain amplifier for signal processing and data recording.
Is the sensor suitable for small-scale geotechnical models?
Yes. Its compact 12 mm diameter and 4.2 mm thickness make it especially suitable for embedded measurements in small laboratory models.
What materials can be monitored?
The sensor can measure stress in soil, sand, slurry, backfill materials, and around model piles or foundations.

Why Choose the DMTY-12 Strain Gauge Earth Pressure Cell?
The DMTY-12 combines miniature dimensions, high accuracy, temperature-compensated measurement, and static/dynamic monitoring capability in a single sensor. It is an ideal solution for geotechnical researchers, universities, civil engineering laboratories, and infrastructure testing organizations requiring reliable soil pressure measurement in model-scale experiments.

What is the DMTY-12 Earth Pressure Cell used for?
It is used to measure stress changes inside soil, sand, slurry, and around model piles in geotechnical laboratory experiments and model tests.
Can the sensor measure vibration-induced soil pressure?
Yes. The DMTY-12 supports both static and dynamic measurements, making it suitable for vibration and seismic simulation studies.
How does the sensor reduce temperature effects?
The sensor uses a full-bridge strain gauge circuit that automatically compensates for temperature-induced resistance changes, improving measurement stability.
What data acquisition equipment is required?
The sensor is typically connected to a static or dynamic strain acquisition system or strain amplifier for signal processing and data recording.
Is the sensor suitable for small-scale geotechnical models?
Yes. Its compact 12 mm diameter and 4.2 mm thickness make it especially suitable for embedded measurements in small laboratory models.
What materials can be monitored?
The sensor can measure stress in soil, sand, slurry, backfill materials, and around model piles or foundations.

Why Choose the DMTY-12 Strain Gauge Earth Pressure Cell?
The DMTY-12 combines miniature dimensions, high accuracy, temperature-compensated measurement, and static/dynamic monitoring capability in a single sensor. It is an ideal solution for geotechnical researchers, universities, civil engineering laboratories, and infrastructure testing organizations requiring reliable soil pressure measurement in model-scale experiments.

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