Precision Digital Inclinometer for Borehole Measurement and Testing
Product Details
| Customization: | Available |
|---|---|
| Application Area: | Angle and Azimuth Measurement of Various Non-Magne |
| Data Transmission: | Wireless Inclination Sensor |
Manufacturer/Factory & Trading Company
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Year of Establishment
2009-09-11
Address
9F/10, Jintai Building, No. 23, Nanping, Nan'an District, Chongqing, China
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Basic Info.
- Model NO.
- JQX-2Q
- Measuring Range
- Angle and Azimuth Measurement of Various Non-Magne
- Type
- Inclinometer
- Working Principle
- Inclinometer
- Usage
- Logging&Testing
- Working Temperature
- 0~85℃
- Transport Package
- Wooden Cases
- Specification
- 240x95x140mm
- Trademark
- GOLD
- Origin
- Chongqing, China
- Production Capacity
- 5000pices/Year
Product Description
JQX-2 portable digital inclinometer is a new type of high-precision inclinometer system consisting of a surface instrument, a downhole probe, a portable manual winch and cables.It is widely used in the measurement of top angle and azimuth of various non-magnetic or weak magnetic geological boreholes, and can be applied to geological exploration, mineral exploration, water conservancy and hydropower engineering, geotechnical engineering and other fields.
System composition
It consists of ground instrument, downhole probe, light manual winch and other related accessories.
The JQX-2 lightweight digital inclinometer works mainly based on the principle of gravity acceleration and geomagnetism. The following is a detailed introduction:
Principle of gravity acceleration measurement
Basics of angle measurement: A high-precision acceleration sensor is installed inside the instrument, which can sensitively sense the components of gravity acceleration in different directions. When the instrument is in a tilted state, gravity acceleration will produce different components in different axial directions of the sensor. By measuring the size of these components, the inclination angle of the instrument relative to the direction of gravity, that is, the vertex angle, can be calculated.
Signal conversion and processing: The acceleration sensor converts the sensed gravity acceleration component into an electrical signal, and then after a series of processing such as amplification, filtering, analog-to-digital conversion, the analog signal is converted into a digital signal and transmitted to the control unit of the instrument. The control unit processes the digital signal according to the preset algorithm, calculates the specific value of the vertex angle, and displays it directly on the display.
Principle of geomagnetic measurement
Determination of azimuth: When measuring the azimuth, the instrument uses the built-in geomagnetic sensor to sense the direction of the earth's magnetic field. Since the earth's magnetic field is relatively stable within a certain range, when the instrument rotates in the borehole, the geomagnetic sensor will detect the change in the direction of the magnetic field. By comparing it with the known geomagnetic reference direction, the azimuth of the instrument can be determined.
Data fusion and calibration: In order to improve the accuracy of azimuth measurement, the instrument will fuse the data measured by the geomagnetic sensor with the vertex data measured by the acceleration sensor. At the same time, the instrument needs to be calibrated before use to eliminate the error of the instrument itself and the interference of the surrounding magnetic field to ensure the accuracy of the measurement results.
Overall working process
Instrument installation and placement: When using the JQX-2 lightweight digital inclinometer, you need to first connect the inclinometer to the ground instrument through a cable, and then carefully place the inclinometer into the borehole. During the placement process, make sure that the instrument is along the axis of the borehole to avoid collision or friction with the borehole wall.
Data acquisition and transmission: When the inclinometer reaches the measurement position, the instrument automatically collects vertex and azimuth data and transmits the data to the ground instrument through a cable. After receiving the data, the ground instrument will further process and analyze the data, such as data storage, display, printing, etc.
Measurement and calculation: After collecting the vertex and azimuth data, the instrument's internal calculation program can calculate the trajectory and offset of the borehole based on the measured vertex and azimuth data, combined with information such as the depth of the borehole, thereby providing important reference for geological exploration, engineering construction, etc.
Main technical indicators
| Inclination measurement range | 0~60° |
| Accuracy | ≤0.1 azimuth |
| Measurement range | 0~360° |
| Accuracy | 4° (vertex angle 3°), ±6° (2o≤vertex angle≤3°) |
| Working temperature | 0~85ºC |
| Probe tube dimensions | Φ42x100mm |
| Weight | 2kg |
| Probe tube downhole depth | ≤1000m |
| Surface instrument dimensions | 240x95x140mm |
| Weight | 0.8kg |
CERTIFICATION
COMPANY AT A GLANCE
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd is specialized in manufacturing and developing of Geophysical Exploration Instrument such as Resistivity Meter, IP Instrument, Resistivity Image, Seismic Instrument, Electromagnetic Instrument, Borehole Camera, Borehole Logging System, Water Level Meter; Borehole Drilling Equipment including Core/ Water Well/ Tunnel/ Engineering/ Anchor Drilling Rigs&Accessory and Geodetic Surveying Instrument(GNSS RTK System, Total Station, GIS Mapping and Echo Sounder).
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