| 压力变送器和传感器的区别联系 |
| 信息来源： 压力变送器制造 | 2019-04-15 点击量： 5085 |
压力变送器和传感器的区别联系？西安华恒仪表制造有限公司介绍：传感器是能够受规定的被测量并按照一定的规律转换成可用输出信号的器件或装置的总称,通常由敏感元件和转换元件组成，如热电偶。
Differential relationship between pressure transmitter and sensor?Xi'an Huaheng Instrument Manufacturing Co.,Ltd.Introduction:Sensors are devices or devices that can be measured and converted into usable output signals according to certain rules.They are usually composed of sensitive elements and conversion elements,such as thermocouples.
当传感器的输出为规定的标准信号时，则称为变送器。变送器的概念是将非标准电信号转换为标准电信号的仪器，传感器则是将物理信号转换为电信号的器件，过去常讲物理信号，现在其他信号也有了。
When the output of the sensor is a specified standard signal,it is called a transmitter.The concept of transmitter is an instrument that converts non-standard electrical signals into standard electrical signals.Sensors are devices that convert physical signals into electrical signals.In the past,physical signals were often talked about,but now other signals are available.
一次仪表指现场测量仪表或基地控制表，二次仪表指利用一次表信号完成其他功能：诸如控制，显示等功能的仪表。
The primary instrument refers to the field measurement instrument or the base control table,while the secondary instrument refers to the instrument that uses the primary meter signal to complete other functions,such as control,display and other functions.
传感器和变送器本是热工仪表的概念。传感器是把非电物理量如温度、压力、液位、物料、气体特性等转换成电信号或把物理量如压力、液位等直接送到变送器。变送器则是把传感器采集到的微弱的电信号放大以便转送或启动控制元件。
Sensors and transmitters are concepts of thermal instrumentation.Sensors convert non-electrical physical quantities such as temperature,pressure,liquid level,material and gas characteristics into electrical signals or send physical quantities such as pressure and liquid level directly to transmitters.The transmitter amplifies the weak electric signal collected by the sensor to transmit or start the control element.
或将传感器输入的非电量转换成电信号同时放大以便供远方测量和控制的信号源。根据需要还可将模拟量变换为数字量。传感器和变送器一同构成自动控制的监测信号源。不同的物理量需要不同的传感器和相应的变送器。
Or the non-electric input of the sensor can be converted into an electrical signal and amplified simultaneously for remote measurement and control.Analog data can also be converted to digital data as needed.Sensors and transmitters together constitute a monitoring signal source for automatic control.Different physical quantities require different sensors and corresponding transmitters.
还有一种变送器不是将物理量变换成电信号，如一种锅炉水位计的“差压变送器”，他是将液位传感器里的下部的水和上部蒸汽的冷凝水通过仪表管送到变送器的波纹管两侧，以波纹管两侧的差压带动机械放大装置用指针指示水位的一种远方仪表。
There is also a transmitter which does not convert physical quantities into electrical signals,such as a"differential pressure transmitter"of the boiler water level gauge.It is a remote instrument that transmits the condensate water of the lower part of the liquid level sensor and the upper part of the steam to the bellows of the transmitter through the instrumentation tube,and uses the differential pressure on both sides of the bellows to drive the mechanical amplifier device to indicate the water level with a pointer.
当然还有把电气模拟量变换成数字量的也可以叫变送器。以上只是从概念上说明传感器和变送器的区别。
Of course,it can also be called a transmitter to convert electrical analog into digital.These are just conceptual differences between sensors and transmitters.
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