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本文对光纤液位计的组成和原理作了介绍,光纤液位计由模数转换装置、光导纤维对及逻辑数字显示电路组成。模数转换装置为非电量转换,光导纤维对把该信息远距离传送给数字显示仪表,它能用数字量连续显示液位的变化。由于转换及传送部分均采用非电量器件,因而它特别适用于易燃易爆及有强电磁场干扰源对象的液位测量。
In this paper, the composition and principle of the fiber optic liquid level gauge are introduced. The fiber optic liquid level gauge consists of analog-to-digital conversion device, optical fiber pair and logic digital display circuit. Analog-to-digital converter for non-power conversion, optical fiber to the long-distance transmission of information to the digital display instrument, which can be used to continuously display the digital level changes. Because the conversion and transmission parts are used non-power devices, so it is particularly suitable for flammable and highly electromagnetic field interference object level measurement.