The intensity modulation method is the oldest and simplest method for fiber-optic sensor, in which a homochromatic laser is used as system light source.
Laser is a new light source.Comparing with ordinary light the laser has good monochromaticity, directivity, coherency, high brightness, high power and high energy etc.
Approximately thirteen seconds before impact, the Copperhead's laser light sensor becomes active, and it uses fins to guide itself to the laser light source.
The experiments suggest that the superfluorescence of fluoride glass fibr is a kind of low coherence and high performances light source with bright application prospect.
The influence of the semibreadth of light source upon the measurement accuracy of the concentration of the solution is primarily discussed and then a corresponding expression is given in this paper.
个光源对应
。
了到达不宜的出产效果，不常拔取众激平束并行纪录的技艺，其平源本钱相差较矮。
涉型传感器采用的最古老、最简单的方法，它采用单色激光光源作
型光源，激光与普通光相比，具有很好的单色性、方向性、相
。
有
们的生活。
。
版）
视线、镜子和
之一。
