Action G408-0001模块,G408-0001使用范围
基于Pressductor 技术的测量技术力传感器的工作原理对其性能有很大影响。它还影响整个称重传感器的刚性和无振动程度，以及其鲁棒性和过载耐受性。所有这些因素都会影响web处理机械。ABB的Pressductor 传感器技术会因传感器电压的变化而产生信号当称重传感器受到机械力时的电磁场。这是一个操作起源于冶金现象的原理，根据该原理力改变了一些钢传递磁场的能力。与其他类型的称重传感器不同在技术方面，不需要进行物理运动，如压缩、弯曲或拉伸信号生成。
Action G408-0001模块Pressductor?传感器（称重传感器内的传感器）是一种简单而优雅的设计。基本上，围绕钢芯的两根垂直铜线绕组结合在一起，提供了一个测量信号。电磁场是通过连续向其中一个绕组。磁场的定位方式如下，因为绕组与当称重传感器无应力时，它们之间没有磁耦合。然而，当传感器受到力时，如图所示，磁场图案改变。一部分磁场与第二绕组耦合，并产生交流电反映卷筒施加在测量辊上的张力的电压。该电压-a较强的传感器信号-由称重传感器系统的张力转换将电子元件输入系统输出。您安装系统的方式对其功能、准确性和可靠性有更大的影响比你想象的要多。安装越精确，测量系统越好。通过按照本章中的说明，您将满足以下最重要的要求：正确的机械和电气安装。该设备是一种精密仪器，虽然用于恶劣的操作必须小心处理。The Measuring Technique Based on Pressductor? Technology
The operating principle of a force transducer has a great effect on how well it will perform. It
also affects how stiff and vibration-free the entire load cell will be, as well as its robustness and
tolerance to overload. All of these factors impact on the design, operation, and maintenance of
the web processing machinery.
ABB’s Pressductor? transducer technology produces a signal as a result of changes in an
electromagnetic field when the load cell is subjected to mechanical force. It is an operating
principle that has its origin in a metallurgical phenomenon according to which mechanical
forces alter the ability of some steels to convey a magnetic field. Unlike other types of load cell
technologies, physical movement such as compression, bending or stretching is not required for
signal generation.
A Pressductor? transducer (the sensor inside the load cell) is a simple and elegant design.
Essentially, two perpendicular windings of copper wire around a steel core combine to provide a
measurement signal.
An electromagnetic field is created by continuously feeding an alternating current to one of the
windings. The field is positioned in such a way that, since the windings are at right angles to
each other, there is no magnetic coupling between them when the load cell is unstressed.
However, when the transducer is subjected to a force, as shown in the figure, the magnetic field
pattern changes. A portion of the field couples with the second winding and induces an AC
voltage that reflects the tension exerted by the web on the measurement roll. This voltage - a
comparatively strong transducer signal - is converted by the load cell system’s tension
electronics into a system output.The way you install your system has more influence on its functionality, accuracy and reliability
than you might think. The more accurate the installation, the better the measurement system. By
following the instructions in this chapter, you will fulfill the most important requirements for
proper mechanical and electrical installation.
The equipment is a precision instrument which, although intended for severe operating
conditions, must be handled with care.
