1.The introduction of instrument
The QZ2012 series of speed pickups is a high-quality sensor with independent intellectual property rights jointly developed by the Institute of Engineering Mechanics, China Earthquake Administration,and Hebei Zhenchuang Electronic Technology Co., Ltd.
The sensor uses the principle of differential magnetic steel to induce vibration, uses passive closed-loop servo technology, and has good low-frequency characteristics and good impedance matching characteristics.
This series of speed pickups is a multifunctional vibration speedometer for low frequency vibration measurement, which can measure micro speed, medium speed and large speed signals. This sensor 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
Figure1 QZ2012 single-axis speed sensor
2.The main technical index
There are five models of QZ2012 series speed pickups. The main technical indicators of the specific models of instruments are shown in the following table
Figugre 1 Main technical indexes of QZ2012 series speed vibrator
Effective frequency band（Hz）
3.The range of application
It is mainly used for pulsation (micro vibration) and blasting vibration measurement of the site; pulsation, wind vibration, seismic measurement or monitoring of buildings such as buildings; ultra-low frequency pulsation (micro vibration) and large vibration measurement of large-span structures such as bridges.
1). High reliability and long service life.
2). High resolution.
3). High sensitivity.
4). Wide measuring range.
5). High waterproof level.