DL/T 2163-2020 in English
VALIDMicro-electromechanical system type inclinometer
- Issued on:2020-10-23
- Implemented on:2021-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$204.00
Introduction
Analysis of the core content of the standard
This standard specifies for the first time the inclinometer product system using micro-electromechanical system (MEMS) technology, and clarifies the application requirements of both fixed and movable inclinometers in the field of power engineering. Its technological breakthrough is reflected in the improvement of the resolution of traditional mechanical inclinometers from 0.1%FS to 0.015%FS.
Comparison of key technical indicators
| Parameters | Mobile inclinometer | Fixed inclinometer | Test standard |
|---|---|---|---|
| Measuring range | ±30° | ±15° | 6.3.1 |
| Resolution | ≤0.015%FS | 5.3.1 | |
| Water pressure resistance | 0.5/1.0/2.0MPa | According to specifications | 5.9 |
MEMS Technology Evolution Analysis
The characteristic scale of the MEMS sensor element defined in the standard is 0.1-100μm, which has three advantages over traditional inclination sensors:
- Silicon micromachining technology is used to achieve mass production consistency
- Digital signal output reduces transmission interference (in line with the electromagnetic compatibility requirements of GB/T17626.3)
- Temperature compensation algorithm improves -20℃~60℃ environmental adaptability
Project Implementation Suggestions
Dam monitoring application case: A hydropower station uses a fixed dual-axis inclinometer array, after type testing in accordance with clause 7.1 of the standard, achieved a displacement monitoring accuracy of 0.2mm/m in a 500m corridor, and the data was verified for reliability through the checksum algorithm in Appendix A.
Installation precautions:
- The wheelbase of the mobile inclinometer must match the specifications of the inclinometer tube (standard 4.2.2)
- The cable connector must meet the 50MΩ insulation requirement of clause 5.4
- Long-term monitoring requires a 30-day stability verification according to clause 6.5
Innovation of the standard
This standard establishes a complete technical system for micromechanical inclinometers for the first time:
- The original calibration and index (β≤0.25%FS) is proposed to solve the positioning error problem of mobile instruments
- A 10-150Hz vibration test is specified in clause 5.6 to ensure that the instrument can adapt to the complex environment of hydropower projects
- Appendix A gives a complete parameter calculation model, including displacement conversion formulas (A.1-A.2)
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