FTYB-3000B digital dynamic and static strain sensor is used to measure the micro-strain generated by the structure under static load. It is a new strain sensor developed by using magnetic position coding technology; Digital transmission of measured values to specially configured digital display or computer display. Wired / wireless transmission distance can reach 1km or more.
Dynamic and static strain measurement of engineering structures (such as concrete and components) and surface strains of bridges, plates, columns, etc. in civil engineering.
The strain sensor is a sensor that measures the micro-strain of steel or concrete structures. In the 150mm gauge, we use all steel materials. Its expansion coefficient is close to that of concrete, and the measurement is more accurate.
The basic principle of the digital dynamic and static strain sensor is roughly the same as the digital static strain sensor, but it has a built-in high-speed digital acquisition and storage chip. The dynamic frequency response is 0-200 Hz, which fully meets the static and dynamic impact response of large bridge structures. At the same time, it has high sensitivity, good linearity, stable performance, strong anti-worry ability, convenient installation, and suitable for long-term observation. The wired / wireless transmission distance can reach 1km or more.
At present, there are some imitated products in China. They partially use aluminum alloy or other non-steel materials. The circular sensor cavity is placed within the gauge distance, which will cause large errors when the temperature changes. Our company's products are all-steel structure, the cavity is outside the gauge distance, the cavity expansion effect is small, and the measurement is more accurate.
Strain is measured by directly measuring a small length change within a certain length range of the object (such as a gauge distance of 150mm). Therefore, this strain sensor is equivalent to measuring a small displacement electronic device (its displacement resolution is 0.015μm, which is equivalent to an electronic type 100,000 points). The principle is similar to measuring the change in length within the standard length range with a dial indicator.
1.Technical parameters: in line with the standard for experimental methods of concrete structures
2. Strain range: ± 1500με;
3. Minimum strain resolution: 0.1με;
4. Output mode: RS485 / RS232 / CAN / Wireless;
5. Working voltage and current: DC + 8 ～ 12 V; <50mA;
6. Working temperature: -40 ～ + 60 ℃;
7. Protection level: IP65.