3BHE023784R2630工控控制器,PPD103B101使用過程
基于Pressductor?技術的測量技術力傳感器的工作原理對其性能有很大影響。它也會影響整個稱重傳感器的剛性和無振動程度，以及其魯棒性和過載耐受性。所有這些因素都會影響web處理機械。
ABB的Pressductor?傳感器技術會在稱重傳感器受到機械力時的電磁場。這是一個操作系統(tǒng)起源于冶金現象的原理，根據該原理，機械力改變了某些鋼傳遞磁場的能力。與其他類型的稱重傳感器不同技術，無需進行物理運動，如壓縮、彎曲或拉伸信號生成。
3BHE023784R2630工控控制器,PPD103B101使用過程Pressductor?傳感器（稱重傳感器內的傳感器）是一種簡單而優(yōu)雅的設計?；旧?，圍繞鋼芯的兩根垂直銅線繞組結合在一起，提供測量信號。電磁場是通過不斷地向其中一個繞組。由于繞組與當稱重傳感器無應力時，它們之間沒有磁耦合。
然而，當傳感器受到力時，如圖所示，磁場模式更改。一部分磁場與第二繞組耦合，并感應交流反映卷筒在測量輥上施加的張力的電壓。該電壓-a較強的傳感器信號-由稱重傳感器系統(tǒng)的張力轉換電子元件輸入系統(tǒng)輸出。
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 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.
