3AUA0000110430熱電偶模塊,BCU-12怎么使用
稱重傳感器測(cè)量水平力。負(fù)載電池可以在兩個(gè)方向上測(cè)量。應(yīng)用的垂直未測(cè)量力,不會(huì)影響水平測(cè)量。有一個(gè)來源水平力,腹板張力產(chǎn)生的力(皮重重量在測(cè)量方向上沒有分力)。參見圖中的力計(jì)算。
將總垂直力FRtot除以2,得到每個(gè)稱重傳感器的所需容量。
請(qǐng)勿為過載目的而加大ABB稱重傳感器的尺寸因?yàn)榉Q重傳感器具有足夠的過載能力。單測(cè)力傳感器測(cè)量的力計(jì)算在某些情況下,僅在一個(gè)位置安裝一個(gè)稱重傳感器即可測(cè)量張力卷結(jié)束。然而,應(yīng)在兩端支撐輥。
3AUA0000110430熱電偶模塊D、 7.1最常見、最簡(jiǎn)單的解決方案最明顯、最簡(jiǎn)單的解決方案是水平安裝,腹板均勻分布以卷為中心。
只要軋輥兩端都有支撐,第D.6節(jié)“安裝”中給出的計(jì)算備選方案,計(jì)算力和計(jì)算包裹增益是有效的。請(qǐng)注意,輸出信號(hào)是一個(gè)求和。
注意事項(xiàng)單個(gè)稱重傳感器測(cè)量的精度在很大程度上取決于可以確定力的中心。由于橫向應(yīng)力分布一般有點(diǎn)不均勻,這不容易做到。稱重傳感器
然而,將產(chǎn)生穩(wěn)定且可重復(fù)的測(cè)量。
The load cell measures the horizontal forces. The load
cell can measure in both directions. The vertical applied
forces are not measured and do not influence the
horizontal measurement. There is one source of
horizontal forces, the force from the web tension (the tare
weight has no force component in measuring direction).
See force calculations in figure.
Divide the total vertical force FRtot by two to get the
required capacity of each load cell.
Do not oversize an ABB load cell for overload purposes
as the load cell has sufficient overload capacity.Force Calculation for Measurement with a Single Load Cell
In some cases, it is sufficient to measure the tension with only a single load cell mounted at one
end of the roll. The roll should nevertheless be supported at both ends.
D.7.1 The Most Common and Simple Solution
The most obvious and simple solution is horizontal mounting with the web evenly distributed
and centered on the roll.
As long as the roll is supported at both ends, the calculations given in Section D.6, Mounting
Alternatives, Calculating Force and Calculating Wrap Gain are valid. Note that the output signal
is a summation.
NOTE
The accuracy of a single load cell measurement is highly dependent on how well
the center of force can be determined. Since the cross-directional stress
distribution generally is somewhat uneven, this is not easily done. The load cell
will, however, produce a stable and repeatable measurement.