DMKY High-Precision Miniature Pore Water Pressure Transducer

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DMKY High-Precision Miniature Pore Water Pressure Transducer

Product ID：CLQTlxlcly031

Price: US$188.00 ~ US$210.00 PDF Format

Supply Ability:50 SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberYDMKY

Brand NameNJDANMO

Payment TermsTT，PAYPAL，Alibaba.com Pay

DMKY High-Precision Miniature Pore Water Pressure Transducer
Product Introduction
The DMKY High-Precision Miniature Pore Water Pressure Transducer is a compact, high-accuracy pore water pressure sensor designed to measure static and dynamic pore water pressure in soil, mud, sand, model piles, and geotechnical structures. It is also suitable for pore pressure measurement in dynamic centrifuge model tests.
With a miniature structure, low weight, excellent waterproof performance, and reusable design, the DMKY pore pressure transducer provides reliable monitoring of changes in pore water pressure inside or around test structures. Its strain-gauge full-bridge circuit helps compensate for temperature effects and improves measurement stability.
The sensor supports customized dimensions, pressure ranges, cable lengths, and cable outlet configurations, making it suitable for laboratory research and specialized geotechnical testing.

Key Features
• High-precision pore pressure measurement: Accuracy up to ≤0.3% F.S.
• Miniature design: Minimum customized diameter can be as small as 2.54 mm.
• Static and dynamic measurement: Suitable for both static pore pressure and excess/dynamic pore pressure.
• Excellent waterproof performance: Designed for direct pore water pressure monitoring.
•Temperature compensation: Strain-gauge full-bridge circuit reduces temperature-induced measurement errors.
• Customizable pressure range: Any range between 0.01 and 10 MPa can be customized.
• Reusable construction: Suitable for repeated laboratory and model tests.
• Flexible signal output: Available with mV-level output or 0–5 V / 4–20 mA output configurations.
• Flexible installation: Bottom cable outlet or side cable outlet options.
• High overload capacity: Up to 120% of full-scale pressure.

Working Principle
The DMKY pore water pressure transducer converts changes in water pressure into an electrical signal through a sensitive pressure-sensing element.
When pore water pressure acts on the sensing diaphragm, the mechanical deformation changes the electrical characteristics of the strain-sensitive element. The full-bridge strain-gauge circuit converts this deformation into a proportional electrical output. The signal can then be collected by a static strain data acquisition system, voltage/current acquisition device, or compatible transmitter.
The strain-gauge full-bridge design also helps reduce the influence of temperature variation, providing stable and accurate soil pore pressure measurement during long-term or dynamic testing.

Technical Specifications

Parameter	Configuration 1	Configuration 2	Configuration 3
Diameter	15.8 mm	3 mm	7 mm
Height	21 mm	12 mm	12 mm
Pressure Range	0.01–10 MPa, customizable	0.01–10 MPa, customizable	0.01–10 MPa, customizable
Accuracy	≤0.3% F.S.	≤0.3% F.S.	≤0.3% F.S.
Sensing Principle	Strain gauge	Polysilicon	Polysilicon
Output Signal	0.2 mV/kPa	0–5 V or 4–20 mA	0–5 V or 4–20 mA
Resolution	0.005 kPa	Continuous signal output	Continuous signal output
Measurement Mode	Static and dynamic	Static and dynamic	Static and dynamic
Waterproof Performance	Waterproof / pressure-resistant	Waterproof / pressure-resistant	Waterproof / pressure-resistant
Overload Capacity	120% F.S.	120% F.S.	120% F.S.
Compatible Equipment	Static strain data acquisition system, cable, etc.	Transmitter, voltage/current acquisition equipment	Transmitter, voltage/current acquisition equipment
Dimensions	Customizable	Customizable	Customizable
Minimum Customized Diameter	Up to 2.54 mm	Up to 2.54 mm	Up to 2.54 mm
Cable Outlet	Bottom or side	Bottom or side	Bottom or side

Ordering note: Please specify the required pressure range, cable outlet direction, sensor dimensions, and cable length when ordering. Sensor structure and dimensions can be customized according to the test requirements.

Applications
1. Soil and Geotechnical Testing
Measures static and excess pore water pressure in soil samples and geotechnical test specimens.
2. Centrifuge Model Testing
The miniature structure is particularly suitable for dynamic centrifuge model tests, where installation space and sensor weight are critical.
3. Model Pile Testing
Monitors pore pressure around or inside model piles during loading and penetration experiments.
4. Embankment and Foundation Research
Used to study pore pressure changes caused by loading, consolidation, seepage, and deformation.
5. Mud and Sand Testing
Suitable for measuring pore water pressure in mud, sand, and other granular or saturated materials.
6. Laboratory Geotechnical Research
Provides compact and reusable pore pressure monitoring for soil mechanics, seepage, consolidation, and model experiments.

DMKY Pore Pressure Transducer vs. Conventional Pressure Sensors

Feature	DMKY Miniature Pore Pressure Transducer	Conventional Pressure Sensor
Sensor Size	Miniature; diameter can be customized to 2.54 mm	Usually larger
Pore Pressure Measurement	Specifically designed for soil, sand, mud and geotechnical media	Often designed for general fluid pressure
Static Measurement	Yes	Yes
Dynamic Measurement	Yes	Depends on model
Centrifuge Model Testing	Highly suitable	May be limited by size and weight
Waterproof Performance	Designed for pore water pressure environments	Varies by model
Accuracy	≤0.3% F.S.	Varies
Pressure Range	0.01–10 MPa, customizable	Usually fixed or limited options
Cable Outlet	Bottom or side	Usually fixed
Structure	Customizable	Usually standardized
Reusability	Yes	Depends on model

Frequently Asked Questions (FAQ)
1. What does the DMKY pore pressure transducer measure?
It measures pore water pressure (pore pressure) in soil, sand, mud, model piles, and other geotechnical materials, including both static and excess pore pressure.
2. Can the DMKY sensor measure dynamic pore pressure?
Yes. The DMKY series supports both static and dynamic pore water pressure measurement, making it suitable for loading experiments and dynamic centrifuge model tests.
3. What pressure ranges are available?
Any pressure range between 0.01 MPa and 10 MPa can be customized according to the application.
4. Can the sensor size be customized?
Yes. The sensor dimensions and internal structure can be customized. The minimum customized diameter can be as small as 2.54 mm.
5. Is the DMKY sensor waterproof?
Yes. The DMKY pore pressure transducer is designed with good waterproof and water-pressure resistance characteristics for pore water pressure measurement.
6. What output signals are available?
Depending on the configuration, the sensor can provide 0.2 mV/kPa, 0–5 V, or 4–20 mA output.
7. Can the cable outlet direction be customized?
Yes. Both bottom cable outlet and side cable outlet configurations are available.
8. What equipment is required for signal acquisition?
The mV-output configuration can be connected to a static strain data acquisition system, while 0–5 V or 4–20 mA versions can be connected to compatible voltage/current acquisition equipment or transmitters.
9. What information should be provided when ordering?
Please specify the required pressure range, cable outlet direction, sensor dimensions, cable length, and any special structural requirements.

Frequently Asked Questions (FAQ)
1. What does the DMKY pore pressure transducer measure?
It measures pore water pressure (pore pressure) in soil, sand, mud, model piles, and other geotechnical materials, including both static and excess pore pressure.
2. Can the DMKY sensor measure dynamic pore pressure?
Yes. The DMKY series supports both static and dynamic pore water pressure measurement, making it suitable for loading experiments and dynamic centrifuge model tests.
3. What pressure ranges are available?
Any pressure range between 0.01 MPa and 10 MPa can be customized according to the application.
4. Can the sensor size be customized?
Yes. The sensor dimensions and internal structure can be customized. The minimum customized diameter can be as small as 2.54 mm.
5. Is the DMKY sensor waterproof?
Yes. The DMKY pore pressure transducer is designed with good waterproof and water-pressure resistance characteristics for pore water pressure measurement.
6. What output signals are available?
Depending on the configuration, the sensor can provide 0.2 mV/kPa, 0–5 V, or 4–20 mA output.
7. Can the cable outlet direction be customized?
Yes. Both bottom cable outlet and side cable outlet configurations are available.
8. What equipment is required for signal acquisition?
The mV-output configuration can be connected to a static strain data acquisition system, while 0–5 V or 4–20 mA versions can be connected to compatible voltage/current acquisition equipment or transmitters.
9. What information should be provided when ordering?
Please specify the required pressure range, cable outlet direction, sensor dimensions, cable length, and any special structural requirements.