光谱共焦传感器

光谱共焦传感器用于电容生产中液位检测-confocal

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发布日期:2017-01-16 浏览:

在电容生产过程中,电容原件需要浸泡在特定液体内。为了确保浸泡过程遵守规格要求,精确控制液位高度至关重要。

传统测量采用激光三角反射式传感器存在许多固有问题,例如复杂的系统安装和调试,以及由此带来的费用升高。液面的波动还会带来信号的中断。

光谱共焦式传感器可以解决上述问题。通过光谱共焦原理,溶剂表面的反射光被直接测量。液面的蒸汽产生的干扰也可以通过特殊处理得以解决。



During the production process capacitor elements must be dipped in a defined manner into a bath of liquid. To ensure constantly high quality it is crucial
that the capacitor elements are dipped exactly according to the specification. Therefore, it is of the utmost importance that the liquid level is maintained
at a very accurately defined height.

For these measurements conventional laser triangulation sensors required a complicated system setup and their complex adjustment incurred costs. The wave motion of the liquid that occurred interrupted the measurement signal which could not then be used for further evaluation.

To compensate these shortcomings, a confocal sensor of the Series optoNCDT2400 was employed. By means of the confocal principle this system measures to the directly reflecting surface of the solvent. The explosive vapors are kept away from the sensor since it is inserted into a conduit with a sealing ring and an O-ring seals the optical system. In addition the conduit is constantly heated externally to prevent condensation forming on the optical system.


This measurement arrangement ensures that due to an exactly defined dipping depth the individual components conform to the defined quality criteria, such as for example the shelf-life or safety under short-circuit conditions.

 

 

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