QZDB-A Dynamic strain gauge
一、仪器简介QZDB-A型动态应变计是由中国地震局工程力学研究所、北京腾晟桥康科技有限公司、河北振创电子科技有限公司联合研发的具有自主知识产权的精品传感器。该应变计精选高精度进口电阻应变计作为敏感元件，经过粘贴组桥、修正等工艺制作而成；同时集成了信号调理电路，直接输出电压信号，无需再接应变仪。QZDB-A型动态应变计可与我司生产的G01NET系列采集仪配套使用，也可与其他采集电压信号的采集仪配套使
1.The introduction of intrument
QZDB-A dynamic strain gauge is a high-quality sensor with independent intellectual property rights jointly developed by Engineering Mechanics Institute of China Seismological Bureau,and Hebei Zhenchuang Electronic Technology Co., LTD.
The strain gauge selects high-precision imported resistance strain gauge as the sensitive element, and is manufactured by the paste group bridge and modification process. At the same time integrated signal conditioning circuit, direct output voltage signal, no need to connect strain gauge.
The QZDB-A dynamic strain gauge can be used in conjunction with the G01NET series collector produced by our company, and can also be used in conjunction with other collectors that collect voltage signals.
Figure 1 QZDB-A Dynamic Strain Gauge
2.Main Technical indicators
Table1 QZDB-A Main technical indexes of Type I dynamic strain gauge
Brige type | Full brige |
Bridge resistance（Ω） | 350±1 |
Nonlinear（%FS） | ≤±2 |
The power supply voltage(V) | 12 |
Output parameters | Single terminal voltage input |
Sensitivity（ | 0.0013 |
Range（ | -3000~3000 |
Drift（ | ≤±3 |
Level of protection | IP66 |
Range of temperature（℃） | -20~80 |
Weight（g） | 80 |
Size（L*W*H） | 203*491*34mm（Mounting block size36*19mm；Space distance：76mm；Aperture：6mm） |
Standard length of 4-core shielded cable（m） | 3 |
Transmission distance（m） | ≤300 |
3.Range application
It is mainly used for dynamic strain monitoring of buildings or large structures. Dynamic strain stress monitoring of concrete, steel structure, offshore wind power generation tower, etc. under the action of typhoon and ocean waves.
4.Product features
1）.High realibility and long service life
2）.High resoluttion
3）.Hige sensitivity
4）.Easy to install