摘要
介绍了红外双波段可燃气体探测技术的方法和特点。实现该探测技术的电路需用对数放大器。鉴于对数放大器受环境温度影响较大 ,文中从原理分析出发 ,替换了对数放大器 ,对电路进行了简化和改进 ,结果提高了信号的稳定性和灵敏性 ,使之可应用于实际。
The paper has introduced the technology of detecting flammable gases with double infrared wavelength lights. A logarithmic amplifier is needed for the detection. Considering the heavy influence of environment temperature on a logarithmic amplifier, a new circuit without logarithmic amplifier was developed. As a result, the reliability and sensitivity of the circuit are improved, and it is applicable to practice.
出处
《激光与红外》
CAS
CSCD
北大核心
2002年第3期155-157,共3页
Laser & Infrared
关键词
红外
双波段
可燃气体
探测电路
infrared
double wavelength
flammable gas
detecting circuit
