Introduction:

      The DMKY series strain-type pore water pressure gauge is suitable for measuring pore water pressure (osmotic pressure) in or around soil, mud, sand and model piles in model tests, and pore (osmosis) water pressure in dynamic centrifuge model tests It can measure the static pore water pressure and ultra-static pore water pressure in soil or rock soil. It has good waterproof performance, small volume, light weight, and can be reused. It is an effective monitoring device to understand the change of pore water pressure inside the measured structure. The pore pressure gauge adopts strained full-bridge circuit, which can accurately eliminate the influence of temperature changes on the instrument. There are two types of outlets: bottom outlet and side outlet.

Technical Parameters:

Product principle and structure

The pore pressure gauge adopts the principle of strained full-bridge circuit. The high-precision full-bridge strain gauge is pasted inside the sensor sensing membrane. When the water pressure acts on the surface of the sensing membrane, the membrane is deformed and transmitted to the strain gauge. After the strain change information is collected and processed, the corresponding water pressure can be obtained.

DMKY series strain-type pore water pressure gauge is composed of permeable stone parts, sensing plate, observation cable, strain gauge, etc., the range is customized according to customer needs, the minimum range can be customized 0 ~ 10KPa (need to add the amplification chip), the maximum can be customized 10MPa Range, range within this range can be customized according to customer requirements, to meet the experimental requirements of different customers, small size is particularly suitable for model experiments. Amplification chip is added inside the Φ15.8mm pore pressure, the output is highly sensitive, and the resolution can be up to 0.005kpa.

The shape of the sensor can be customized according to customer requirements. Welcome to process.