In intensity-modulated type optic fiber sensors, luminous intensity of a lightsource and operating stability of photoelectric receiver are the key factors for determining measuring accuracy.
在强度调制型光纤传感器中，光源发光强度和光电接收器工作的稳定性，是决定测量精度的关键因素。
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To overcome the interference of background light, a new turbidity measurement method is described which uses light with modulated intensity as source.