Magnetostrictive static level

1.Magnetostrictive static level product introduction

Magnetostrictive static level is suitable for long-term monitoring of the settlement and deformation of multi-point parts of dam, tunnel slope, embankment foundation pit and other projects.The static leveling system is a high-precision liquid level measurement system that is suitable for measuring the relative settlement of multiple points.In use, the static level system installs multiple static levels on multiple monitoring points, and selects one of the monitoring points as the base reference point.The static levels are connected together so that the liquid inside each static level is The surfaces are on the same horizontal plane, so when a certain monitoring point subsides, the liquid level height of the liquid inside each static level will change.Each static level measures the liquid level height of its own internal liquid through its own internal measuring device.The respective liquid level information of each static level is transmitted to the backend system, and the backend system can calculate the relative settlement of each monitoring point relative to the base reference point.Mainly used in vertical displacement monitoring of bridges, tunnels, bridges, subways, dams, foundation pits, large storage tanks, etc.

The magnetostrictive displacement (liquid level) sensor uses the principle of magnetostriction to accurately measure position by generating a strain pulse signal through the intersection of two different magnetic fields.The measuring element is a waveguide, and the sensitive elements in the waveguide are made of special magnetostrictive materials.The measurement process is a current pulse generated by the electronic chamber of the sensor.The current pulse is transmitted in the waveguide, thereby generating a circular magnetic field outside the waveguide.When this magnetic field intersects with the magnetic field generated by the movable magnetic ring set on the waveguide as the position changes, At this time, due to the effect of magnetostriction, a strain mechanical wave pulse signal will be generated in the waveguide.This strain mechanical wave pulse signal is transmitted at a fixed sound speed and is quickly detected by the electronic room.Since the transmission time of this strained mechanical wave pulse signal in the waveguide is proportional to the distance between the movable magnetic ring and the electronic chamber, this distance can be determined with high accuracy by measuring the time.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 fields

1.Rail transit subgrade settlement monitoring

2.Subway support wall settlement monitoring

3.Mountains and buildings in the upper part of the tunnel

4.Highway subgrade and slope settlement detection

5.Bridge pier and foundation pit settlement detection

6.Nuclear power plants and large hydropower plants

7.Dams, water conservancy projects, and foundations of high-rise buildings

8.Comprehensive pipe gallery settlement monitoring

3.Magnetostrictive static level product composition

1.Two ventilation valves on the left and right;

2.There is a filling port on the top, which is used 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 installation bracket and leveling screw;

7.Built-in liquid visual scale;

8.Highly integrated, integrated design, serial connection at the bottom.

4.Magnetostrictive static level product features

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

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

3.Resolution high voltage 0.01mm;

4.High precision: 0.1mm

5.No air duct is required, which saves costs and makes on-site installation more convenient and faster;

6.The 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 beneficial to data collection and analysis in various dynamic monitoring occasions.

7.When using a single device, the active reporting function can be set.The reporting period can be set when the normal value is exceeded, and the reporting period when the threshold is exceeded.

The lower limit threshold can be set.

5.Magnetostrictive static level technical parameters