Research on Small Signal Amplification Circuit of Downhole Instrument
Xin Lai, Chunpu Wang, Liang Ge
Available Online November 2012.
- https://doi.org/10.2991/citcs.2012.128How to use a DOI?
- Microvolt signal; Signal amplifier circuit; Resistance strain sensor; AD8552; Drilling engineering
- In order to acquire the real-time work of underground drill, promote the security and the reliability, it is necessary to effectively measure the drilling engineering parameter of drilling pressure, torque and side pressure etc. It uses the resistance strain sensor as a converter. The microvolt signal amplifier circuit is designed through analyzing the output signal of the resistance strain sensor. The design is applied with high-precision and rail-to-rail OP AD8552 as the core chip in the microvolt signal amplifier circuit. Through experimental test, it is obtained with experimental data of amplifier circuit. Moreover, the data are processed and analyzed using MATLAB software. The signal gain of the whole circuit is as high as 80dB, and the circuit has strong anti-interference ability and high temperature resist. The amplification to the signal above 1'V is good, which is satisfied with the parameter test system of drilling engineering.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Xin Lai AU - Chunpu Wang AU - Liang Ge PY - 2012/11 DA - 2012/11 TI - Research on Small Signal Amplification Circuit of Downhole Instrument BT - 2012 National Conference on Information Technology and Computer Science PB - Atlantis Press SP - 498 EP - 501 SN - 1951-6851 UR - https://doi.org/10.2991/citcs.2012.128 DO - https://doi.org/10.2991/citcs.2012.128 ID - Lai2012/11 ER -