Aug 10 2010
SiTek Electro Optics AB have enhanced their series of position sensing detectors (PSDs), by the addition of a PSD array with 16 parallel, one-dimensional PSD constituents, on one and the same chip.
This array is to be used for applications such as high-speed 3D contour measurements, and also for measurements of objects such as cantilevers and other parallel moving objects.
SiTek Launches its New Position Sensing Detector Array
The PSD array employs a technique known as triangulalation, where the multiple laser spots, or the reflection of the single laser line on the array, will furnish information about the illuminated substance. It is able to detect all the 16 elements and their individual responses in tandem.
This array has the same high linearity and low crosstalk, as the previous 1-D PSD’s of SiTek, the difference being its high sensitivity factor, which is achieved by reducing the gap between the 16 elements with a fill factor greater than 97%. To ensure that there is no reduction in speed and linearity due to stray lighting conditions, PSD arrays have employed a special embedded stray light elimination unit, which is SiTek’s patented design.
The array is packed on a 34 pin dual inline type ceramic pack and its length is 2.5mm. The array can also be customized to any required length, with any number of PSD elements.
Source: http://www.sitek.se