Abstract
Dust content of optical detection system for monitoring gas suspended particles, smoke and other particulate matter content. The detection of this detection system is the use of light scattering and reflection of the nature of the dust particles is mainly based on the number of light scattering to determine the dust content, if the dust density is high, the scattering of light will be more light detected more weak and vice versa. This paper describes an optical output signal of the signal conditioning equipment, according to the weak optical detector output signals to design a signal conditioning program, applied to the weak principle of amplifying and detecting devices and features, the main components used in the op amp OP-07 This design uses a two-stage amplifier circuit, and combined with LabVIEW, make test results more accurate.
Keywords: Weak signal Amplifier Signal Conditioning