FTDW-3A Multi-functional Micro-deformation Measurement System
I. Overview
This system can be applied to dam deformation detection, railway monitoring, landslide monitoring, bridge monitoring, high-rise building monitoring and other fields, and is an ideal system for automatic monitoring of building deformation. In addition, with a dedicated measuring rack, this product can be used to measure the vertical and horizontal alignment irregularity of steel rails.
The photoelectric image-based automatic micro-deformation monitoring system host adopts the photoelectric image method, and is composed of a photoelectric target and an imaging measurement system. It analyzes the micro-deformation of the measured target through the image formed by the photoelectric target fixed on the measured target on the photosensitive device.
It can not only measure the micro-deformation of the target, but also measure the vibration of the target at the same time. It can provide the forced vibration frequency, natural frequency and amplitude of the measured target, and parameters such as impact coefficient and power spectrum can be obtained through spectrum analysis. The specific configuration of the system's hardware, software, quantity and specifications of accessories can be determined according to engineering needs.
This instrument can easily realize remote monitoring when used for long-term monitoring, and is suitable for long-term monitoring and short-term observation in fields such as unmanned outdoor operation and wiring impossibility. It has intelligent functions such as remote monitoring, automatic completion of measurement cycles, real-time evaluation of measurement results, and real-time display of deformation trends. On any computer connected to the Internet, on-site data can be collected.
II. Working Principle for Deformation Monitoring
Fix the special target on the measurement target, so that the target and the measurement target form resonance, convert the vibration into light source vibration of a specific wavelength, analyze the optical signal to the dedicated high-precision industrial CCD through the optical analysis system, and detect the center coordinate change of the target's image on the CCD to accurately measure the longitudinal and transverse displacements of the measurement target under load and their time-response curves. The K values (Kx, Ky) of the system, that is, the actual displacement value represented by each pixel on the CCD, can be calibrated before measurement.
III. Technical Indicators for Deformation Monitoring:
1. Two-dimensional measurement can be carried out simultaneously;
2. Measurement distance: 5m～500m;
3. Frequency response: 0～50Hz;
4. Measurement range: maximum 1m;
5. Uncertainty: 0.1‰ of the measurement range;
6. Sampling time: multiple gears can be preset. Automatic measurement mode can also be adopted;
7. Working temperature: -20℃～40℃, relative humidity: ≤90%;
8. Battery powered.
IV. Instrument Features for Deformation Monitoring:
1. This monitoring method can accurately measure the micro-deformation of targets 1000 meters away, with higher precision than similar equipment;
2. The industrial-grade design of the whole machine is suitable for long-term field monitoring, which cannot be replaced by general total station, theodolite and other measurement methods;
3. This system can easily realize remote monitoring, and is suitable for long-term monitoring and short-term observation in fields such as unmanned outdoor operation and wiring impossibility;
4. Software with intelligent functions such as real-time evaluation of measurement results and real-time display of deformation trends can be developed according to customer needs.
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