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Magnetostrictive static level

Magnetostrictive static level

Model:FT-SZ1

Brand:fengtu

Magnetostrictive static level is a special precision instrument for measuring the relative elevation changes between the various measuring points of foundations and buildings.

Product details

1.Magnetostrictive static level product introduction

Magnetostrictive static level is a special precision instrument for measuring the relative elevation changes between the various measuring points of foundations and buildings.The static leveling system is a high-precision liquid level measurement system, which is suitable for measuring the relative settlement of multiple points. In use, the static leveling system is to install multiple static levels on multiple monitoring points, among which one monitoring point is selected as the base reference point. Each static level is connected together so that the liquid level inside each static level is on the same horizontal plane. In this way, when a certain monitoring point settles, the liquid level height inside each static level will change. Each static level measures the liquid level height of its internal liquid through its own internal measuring device. The liquid level height information of each static level is transmitted to the background system, and the background system can obtain the relative settlement of each monitoring point relative to the base reference point through calculation. It is mainly used for vertical displacement monitoring of bridges, tunnels, bridges, subways, dams, foundation pits, large storage tanks, etc.

The magnetostrictive displacement (liquid level) sensor uses the magnetostrictive principle to accurately measure the position by generating a strain pulse signal through the intersection of two different magnetic fields. The measuring element is a waveguide tube, and the sensitive element in the waveguide tube is made of special magnetostrictive materials. The measurement process is that a current pulse is generated in the electronic chamber of the sensor, and the current pulse is transmitted in the waveguide tube, thereby generating a circumferential magnetic field outside the waveguide tube. When the magnetic field intersects with the magnetic field generated by the active magnetic ring on the waveguide tube as a position change, due to the effect of magnetostriction, a strain mechanical wave pulse signal is generated in the waveguide tube. This strain mechanical wave pulse signal is transmitted at a fixed sound speed and is quickly detected by the electronic chamber. Since the transmission time of this strain mechanical wave pulse signal in the waveguide tube is proportional to the distance between the active magnetic ring and the electronic chamber, by measuring the time, this distance can be determined with high accuracy. Since the output signal is a true absolute value, rather than a proportional or amplified signal, there is no signal drift or value change, and there is no need for regular recalibration.

2. Magnetostrictive static level application areas

1. Rail transit roadbed settlement monitoring

2. Subway support wall settlement monitoring

3. Mountain and buildings above the tunnel

4. Highway roadbed and slope settlement detection

5. Pier and foundation pit settlement detection

6. Nuclear power plants and large hydropower plants

7. Foundations of dams, water conservancy hubs, and high-rise buildings

8. Monitoring of settlement of integrated pipe gallery

3. Magnetostrictive static level product composition

1. Two ventilation valves on the left and right;

2. There is a filling port on the top for manual filling;

3. Five-core waterproof aviation connectors on both sides;

4. Quick liquid pipe interface;

5. Aviation grade aluminum alloy oxidation shell;

6. Equipped with fixed mounting bracket and leveling screw;

7. Built-in liquid visual scale;

8. Highly integrated, integrated design, and serial output from the bottom.

4. Magnetostrictive static level product features

1. Built-in temperature compensation sensor, data is stable for a long time;

2. Digital signal RS485- (MODBUS-RTU output);

3. Resolution high pressure 0.01mm;

4. High precision: 0.1mm

5. No need for air duct, saving costs, and more convenient and quick on-site installation;

6. Unique data processing method supports freezing all device data on the bus at the same time point through broadcast instructions, and then starting collection, which is conducive to data collection and analysis in various dynamic monitoring occasions.

7. When a single device is used, the active reporting function can be set. The reporting cycle when the value is normal and the reporting cycle when the value exceeds the threshold can be set.

The lower threshold can be set.

5. Magnetostrictive static level technical parameters

projectparameter
Measuring mediumWater, antifreeze, silicone oil (please specify when ordering)
Measurement formMagnetostriction principle
Range0~100mm, 0~300mm, 0~500mm range can be customized
Temperature range-40~100℃
Comprehensive accuracy0.1%FS (including temperature drift)
Resolution0.01mm
Output signalRS485-RTU
Supply voltage12V DC (12~30VDC)
Compensation temperature-20~50℃
Medium temperature-40~85℃
Ambient temperature-40~80℃
Electrical ConnectionsFour-core waterproof aviation plug, direct lead
Protection levelIp67
Housing MaterialAviation aluminum alloy, oxidation treatment
Process connectionCatheter: Ф10mm PU tube (10x6.5)



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