Digital MEMS Inclinometer System
The model MCLI digital inclinometer system is an instrument used to manually detect the lateral deformation of structures like slopes, landslides, embankments etc,. The inclinometer can communicate with Android phones via Bluetooth. Through the mobile APP, it can realize various functions such as measurement, display, storage, analysis, import and export, etc. The inclinometer consists of an inclinometer probe, meter mark cable, winding reel, charger and supporting APP software. The trolley with integrated winding reel is convenient for customers to carry, saving time and labor costs. It is widely used to detect earthrock dams and embankments in the fields of water conservancy and hydropower, mining and metallurgy, construction, transportation and other fields, internal horizontal displacement changes in geotechnical engineering and infrastructure such as mountain slopes, buildings, foundation pits, bridges, roadbeds, etc. It is an indispensable precision measuring instrument for manual monitoring of deep horizontal displacement.
Overview
Fig. 1-1 Structure diagram of rod-type mobile inclinometer
First of all, an inclinometer is installed inside the soil of the measuring point, and the movement of the stratum will make the inclinometer offset together, and the change of the soil can be observed by using the mobile inclinometer to measure the inclination of the inclinometer. The inner wall of the inclinometer tube has four guide grooves to match the small pulley on the inclinometer rod of the mobile inclinometer. The meter standard cable wound on the winding reel can control the lower depth of the mobile inclinometer, and the horizontal displacement of the measuring point can be calculated by measuring the inclination angle of the inclinometer at different depths. In practical applications, the direction of the foundation pit (displacement monitoring direction) is the Y direction in the four directions of the inclinometer.
There are two groups of pulleys on the inclinometer, and the interval between pulleys in the same group is 0.5 meters. The control cable of the mobile inclinometer has a meter mark every 0.5 meters, which is used in conjunction with the limit card to facilitate the mobile inclinometer to measure the data of each depth.
To start the measurement, first place the inclinometer rod at the bottom of the inclinometer tube and start reading. Lift the diagonal rod through the control cable and read every 0.5 meters until the top of the inclinometer tube is reached. This set of data read is called positive data. Rotate the inclinometer rod by 180 °, put it back into the inclinometer tube, and use the same method to test to obtain another set of data (reverse reading). Observations on the inclinometer tube were reported from two test data.
Fig. 2-1 Schematic diagram of measuring principle of rod-type mobile inclinometer
Characteristics：
- Single-axis 3D-MEMS technology, high measurement accuracy
- 50 hours long battery life
- Strong impact resistance
- Mobile APP measurement, no special handheld device required
Application scenarios:
- Lateral deformation in dams and tailings
- The stability of natural slopes, landslides,embankments, subsea marine sediments
- The stability of slurry walls, sheet piling and tieback walls
- Lateral movements of tunnels and underground openings
Specifications
|
Main Technical Indicators of Probe |
|
|
Model |
MAS-MCLI |
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Standard Range |
±15° |
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Sensor |
Single Axis MEMS Sensor |
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Resolution |
0.01mm/500mm |
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Total System Accuracy |
±2mm/30m |
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Temperature Range |
-20 ℃ ~ 60 ℃ |
|
Quiescent Current |
60mA @ 25 ℃ |
|
Probe Size |
700mm long, φ26mm diameter guide wheel spacing 500mm |
|
Probe Impact Resistance |
20000g |
|
Probe Weight |
1.8（kg） |
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Battery Life Operating Time (@ 25°C) |
> 50 hours |
|
Bluetooth Communication Distance (no occlusion) |
> 10 meters |
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