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在线式密度计生产_管道式密度计厂家_顶装式密度变送器

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在线式密度计使用_智能式变送器设计原理

发布时间:2020-09-22浏览次数:收藏

智能式变送器是由传感器和微处理器(微机)相结构而成的。它充分利用了微处理器的运算和存储能力,可对传感器的数据进行处理,包括对测量信号的调理(如滤波、放大、A/D转换等)、数据显示、自动校正和自动补偿等。

Intelligent transmitter is composed of sensor and microprocessor (microcomputer) phase structure. It makes full use of the microprocessor's operation and storage capacity, and can process the data of the sensor, including the adjustment of the measured signal (such as filtering, amplification, a / D conversion, etc.), data display, automatic correction and automatic compensation.

微处理器是智能式变送器的核心。它不但可以对测量数据进行计算、存储和数据处理,还可以通过反馈回路对传感器进行调节,以使采集数据达到最佳。由于微处理器具有各种软件和硬件功能,因而它可以完成传统变送器难以完成的任务。所以智能式变送器降低了传感器的制造难度,并在很大程主上提高了传感器的性能。另外,智能式变送器还具有以下特点:

Microprocessor is the core of intelligent transmitter. It can not only calculate, store and process the measured data, but also adjust the sensor through the feedback loop so as to achieve the best acquisition data. Because the microprocessor has various functions of software and hardware, it can accomplish the task that traditional transmitter is difficult to accomplish. Therefore, the intelligent transmitter reduces the manufacturing difficulty of the sensor and improves the performance of the sensor in a large range. In addition, the intelligent transmitter also has the following features:

●具有自动补偿能力,可通过软件对传感器的非线性、温漂、时漂等进行自动补偿。

It has the ability of automatic compensation, which can automatically compensate the nonlinearity, temperature drift and time drift of the sensor through software.

●可自诊断,通电后可对传感器进行自检,以检查传感器各部分是否正常,并作出判断。

It can self diagnose and self check the sensor after power on to check whether all parts of the sensor are normal and make judgment.

●数据处理方便准确,可根据内部程序自动处理数据,如进行统计处理、去除异常数值等。

The data processing is convenient and accurate, and the data can be automatically processed according to the internal program, such as statistical processing, removing abnormal values, etc.

●具有双向通信功能。微处理器不但可以接收和处理传感器数据,还可将信息反馈至传感器,从而对测量过程进行调节和控制。

It has two-way communication function. The microprocessor can not only receive and process the sensor data, but also feedback the information to the sensor, so as to adjust and control the measurement process.

●可进行信息存储和记忆,能存储传感器的特征数据、组态信息和补偿特性等。

It can store and memorize information, and store characteristic data, configuration information and compensation characteristics of sensors.

●具有数字量接口输出功能,可将输出的数字信号方便地和计算机或现场总线等连接。

It has the function of digital interface output, which can connect the output digital signal with computer or field bus conveniently.

酸、碱、盐浓度变送器

Acid, alkali and salt concentration transmitter

酸、碱、盐浓度变送器通过测量溶液电导值来确定浓度。它可以在线连续检测工业过程中酸、碱、盐在水溶液中的浓度含量。这种变送器主要应用于锅炉给水处理、化工溶液的配制以及环保等工业生产过程。

The concentration transmitter of acid, alkali and salt can determine the concentration by measuring the conductivity value of solution. It can continuously detect the concentration of acid, alkali and salt in aqueous solution in industrial process. This transmitter is mainly used in boiler feed water treatment, chemical solution preparation and environmental protection and other industrial production processes.

酸、碱、盐浓度变送器的工作原理是:在一定的范围内,酸碱溶液的浓度与其电导率的大小成比例。因而,只要测出溶液电导率的大小变可得知酸碱浓度的高低。当被测溶液流入专用电导池时,如果忽略电极极化和分布电容,则可以等效为一个纯电阻。在有恒压交变电流流过时,其输出电流与电导率成线性关系,而电导率又与溶液中酸、碱浓度成比例关系。因此只要测出溶液电流,便可算出酸、碱、盐的浓度。

The working principle of acid, alkali and salt concentration transmitter is: within a certain range, the concentration of acid-base solution is proportional to its conductivity. Therefore, as long as the conductivity of the solution is measured, the acid-base concentration can be known. When the measured solution flows into a special conductivity cell, if the electrode polarization and distributed capacitance are ignored, it can be equivalent to a pure resistance. When there is a constant voltage alternating current flowing through, the output current is linear with the conductivity, and the conductivity is proportional to the concentration of acid and alkali in the solution. Therefore, as long as the solution current is measured, the concentration of acid, alkali and salt can be calculated.

酸、碱、盐浓度变送器主要由电导池、电子模块、显示表头和壳体组成。电子模块电路则由激励电源、电导池、电导放大器、相敏整流器、解调器、温度补偿、过载保护和电流转换等单元组成。

Acid, alkali and salt concentration transmitter is mainly composed of conductivity cell, electronic module, indicator and shell. The electronic module circuit is composed of excitation power supply, conductance cell, conductance amplifier, phase sensitive rectifier, demodulator, temperature compensation, overload protection and current conversion unit.

华恒变送器厂家研发出传感器和智能电路板两项核心技术,不仅所有产品的核心部件技术全部掌握,工业自动变送器厂家的精确度也在不断提高,由0.2级提高到0.1级。还可通过对所掌握核心技术进行延伸,变形出测流量、测温度的其他产品。

华恒变送器厂家凭借自身拥有的传感器和智能电路板核心技术,可以根据客户要求,低成本对核心技术进行延伸变形,实现个性化产品定制。主要产品有SMART(斯玛特)系列压力变送器、多参数变送器、流量器、温度传感器和物位(液位变送器厂家,为我国电力、石油、化工、冶金、水泥、矿业等行业提供了高性能价格比的工业自动变送器厂家产品.

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