1. Product introduction
QA-4G wireless accelerometer is an intelligent digital sensor, which adopts MEMS force balance type and adds our unique servo feedback technology, which greatly improves product resolution. This sensor is a high-quality monitoring sensor with independent intellectual property rights jointly developed by the Institute of Engineering Mechanics of China Earthquake Administration, Hebei Zhenchuang Electronic Technology Co., Ltd.
QA-4G wireless accelerometer is a three-component acceleration measurement sensor with multiple ranges and high accuracy. This instrument integrates professional resources in the field of wireless communication and sensor technology. It has the characteristics of low power consumption, small size, high accuracy, high reliability, and high efficiency. It can be widely used in bridge monitoring, health monitoring, civil engineering monitoring, etc. field.
Figure 1 QA-4G wireless accelerometer
2.The main technical parameter
Table 1 QA-4G wireless accelerometer parameters
Lateral sensitivity ratio
≤1%（Including angular deviation）
RMS of noise
RS-485 / 115200 Baud
Low voltage electromagnetic compatibility and certificate
Temperature: -30~+75℃ Humidity:<90%
Three component output
VolumeΦ80*70*68mm；Base mounting hole spacing54*49mm，Threaded hole diameter：4mm
3.The scope of application
It is mainly used for vibration monitoring of high-rise buildings such as bridges, bridge towers, high-rise buildings, buildings, and ancient buildings. The device can be used wherever there is 4G signal.
4. Product features
Support ultra-low power consumption, waterproof aluminum packaging;
Built-in three-way acceleration sensor, the range can be set by software (±2, ±4, ±8g);
Digital signal transmission, effectively avoiding measurement noise caused by cables, and strong anti-interference ability;
Real-time transmission of raw data or acceleration calculation results;
The appearance is small and exquisite, the weight is light, the installation is convenient, and the tedious field wiring is avoided;
No moving parts, high reliability;
A variety of accessories are available to adapt to monitoring under various conditions.