水位计也叫“液位计”或“液面计”。因锅炉里的水在高温时汽化供暖，水和汽的损耗较大，要不断地补充水，使锅炉里的水位保持一定的高度，水位过低，锅炉就有爆炸的危险。为了随时了解锅炉内的水位，在锅炉上都装有水位计，水位计和锅炉构成一个连通器。常用的有玻璃液位计、压强液位计、浮标液位计、电容液位计及电阻液位计等。在高温和高压下，也可采用同位素液位计。
自动水位计 automatic water gauge ; automatic gauge ; water-stage automatic recorder
玻璃水位计 glass water gauge ; gage glass ; glass gauge
遥测水位计 long distance water level recorder ; telemetering stage recorder
声学水位计 acoustic water level
超声波水位计 ultrasonic water level gauge ; ultrasonic water gauge ; ultrasonic stage gauge ; ultrasonic stage recorder
日记式水位计 daily water level recorder
薄膜水位计 diaphragm type level meter
气压水位计 air gage ; Gage air
低置水位计 remote water level indicator
膨胀式水位计 expansion tube type level meter
另外，还谈到了这种传感器在水位计中的应用。
Then the paper talks about the application of this Sensor in water-level meter.
介绍了智能电接点水位计的水位测量原理及其系统的基本结构。
Introduced the water level measurement principle of the intelligent electrical contacted water level indicator and construction of the system.
介绍了一种以单片机为基础的差压式水位计的智能化技术改进方法。
Based on the single chip microprocessors, an intelligent technical improvement method for the pressure difference water level meter is presented.
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