3151自动化0.1精度液位传感器仪表操作原理

3151液位变送器是一种将压力转换成气动信号或电动信号进行控制和远传的设备。 它能将测压元件传感器感受到的气体、液体等物理压力参数转变成标准的电信号（如4~20mADC等），以供给指示报警仪、记录仪、调节器等二次仪表进行测量、指示和过程调节。用于各种工业自控环境，涉及水利水电、铁路交通、智能建筑、生产自控、航空航天、军工、石化、油井、电力、船舶、机床、管道等众多行业。

3151自动化0.1精度液位传感器仪表操作原理

当被测介质（液体）的压力作用于传感器时，压力传感器将压力信号转换成电信号。经归一化差分放大和输出放大器放大，最后经V/A电压电流转换器转换成与被测介质（液体）的液位压力成线性对应关系的4～20mA标准电流输出信号。

When the pressure of the measured medium (liquid) acts on the sensor, the pressure sensor converts the pressure signal into an electrical signal. After being amplified by normalized differential amplifier and output amplifier, it is converted into 4 ~ 20mA standard current output signal which is linearly corresponding to the liquid level pressure of the measured medium (liquid) by V / a voltage current converter.

3151自动化0.1精度液位传感器仪表是一种把非电量转变的电信号的器件，而检测仪表在模拟电路情况下，一般是包括传感器、检测点取样设备及放大器(进行抗干扰处理及信号传输)，当然还有电源及现场显示部分(可选择)，电信号一般分连续量、离散量两种，实际上还可分成模拟量、开关量、脉冲量等，模拟信号传输采用统一信号(4~20mADC等)。数字化过程中，检测仪表变化比较大，经过几个阶段，近来多采用ASIC专用集成电路，而且把传感器和微处理器及网络接口封装在一个器件中，完成信息获取、处理、传输、存贮等功能。在自动化仪表中经常把检测仪称为变送器，如温度变送器、压力变送器等。

3151 automatic 0.1 precision liquid level sensor instrument is a kind of device which transforms non electric quantity into electrical signal. In the case of analog circuit, the detection instrument generally includes sensor, sampling equipment and amplifier (for anti-interference processing and signal transmission), and of course, power supply and field display part (optional). The electrical signal is generally divided into continuous quantity and discrete quantity It can also be divided into analog quantity, switching value, pulse quantity, etc. the unified signal (4 ~ 20mADC, etc.) is adopted for analog signal transmission. In the process of digitization, the detection instrument changes greatly. After several stages, ASIC ASIC ASIC is widely used recently, and sensors, microprocessors and network interfaces are packaged in one device to complete information acquisition, processing, transmission, storage and other functions. In automatic instruments, the detector is often called transmitter, such as temperature transmitter, pressure transmitter, etc.

在现代工业设备中，3151自动化0.1精度液位传感器仪表和检测仪表是不可或缺的。从以下两方面来看：传统的工业设备如在其上增加了必要的传感器，配备精密测量部件(附件)，则其功能和精度可以提高，便于用户操作和维护，安全等级也可以提高，设备可以增值；工业设备作为自动化系统的控制对象或作为自动化系统的一部分，必须能与自动化系统的三部分(检测、控制、执行)相兼容或提供接口，使之集成为一个有机的整体，无论是单机自动化或作为大型自动化装置的一部分，都使该工业设备的用途扩大。综上所述，作为工业设备本身增加传感器和检测仪表、测量仪表或提供接口，是传统设备更新换代的必要条件。

In modern industrial equipment, 3151 automatic 0.1 precision liquid level sensor and detection instrument are indispensable. From the following two aspects: if the traditional industrial equipment is added with necessary sensors and equipped with precision measurement components (accessories), its function and accuracy can be improved, which is convenient for users to operate and maintain, the safety level can also be improved, and the equipment can be added value; as the control object of the automation system or as a part of the automation system, the industrial equipment must be able to automatically and automatically The three parts (detection, control and execution) of the chemical system are compatible or provide interfaces, so that they can be integrated into an organic whole. Whether it is a single machine automation or a part of a large-scale automation device, the use of the industrial equipment will be expanded. To sum up, as an industrial equipment, adding sensors, measuring instruments or providing interfaces is a necessary condition for the upgrading of traditional equipment.

在华恒仪表制造厂家看来,具有比较高稳定性是作为3151系列仪表制造中很重要的生产基础,立足于西安华恒仪表生产厂家的华恒仪表,以核心的电路板生产制造和金属电容/扩散硅传感器完全自主的能力,为广大厂商提供特殊订制,复杂工况专业设计,大宗客户贴牌生产等一线式服务.