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Laser Material Processing

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Test & Measurement<br />

Non-contact “Line” Sensors in the visible range<br />

High res Bild folgt<br />

hat Alois angefragt<br />

The MPLS180 is the first “line” chromatic confocal sensor on<br />

the market. lt projects on the sample surface a “line” constituted<br />

of 180 discrete points, each corresponding to an independent<br />

measuring channel. The maximum line rate of the<br />

sensor is 1,800 lines/s. Thanks to this very high throughput<br />

the MPLS180 is the ideal tool for online inspection.<br />

Key Features<br />

• Very high throughput (324,000 points/s)<br />

• Data transmission by GigE<br />

• High resolution, high accuracy<br />

• Can measure on any material<br />

• lnsensitive to ambient light<br />

Optical principle<br />

The MPLS180 consists of 180 independent chromatic confocal<br />

channels. Each channel measures a single point on the<br />

surface of the sample, and comprises its own point source,<br />

pinhole and spectrometer. The chromatic lens is common to<br />

all the channels. ln the MPLS180 the controller and the optical<br />

head are connected by two fiber optic bundles. The first bundle<br />

connects the internal light source inside the controller to<br />

the entrance plane of the lens; the tips of the 180 fiber optic<br />

cables in the bundle materialize the point sources of the 180<br />

channels. The second bundle connects the output plane of<br />

the spectrometers; the tips of the 180 fiber optic cables materialize<br />

the pinholes of the 180 channels. The fact that each<br />

point is measured by a separate channel is essential for preventing<br />

“cross talk”; otherwise stated, highly reflecting sample<br />

points do not disturb the measurement of nearlying<br />

points with lower reflectivity.<br />

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