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Position Sensing Quadrant Detector kit with Data Acquisition and Power Supply
The SKY-QD100 detector is a 4 quadrant position sensing detector for precise path alignment of light in the 400 to 1100 nm range. The device is capable of measuring beams with a spot size smaller than 7.8 mm, which is the diameter of the quadrant photodiode array. Recommended beam diameter is 1 - 3.9 mm. The device comes with AC adapter power supply and a data acquisition system with a resolution of up to 13 bit (+/-10V). The data acquisition system works with free software available from Dataq, and can collect data in real time from the X, Y and SUM outputs, as well as having one additional +/- 10V data channel to monitor any accessory equipment. Data can be exported into Excel spreadsheets for further data processing.
Includes:
1 SKY-QD100 Quadrant photodetector module with AC adapter power supply included.
1 Dataq DI-145 or DI-1100 data logger
All necessary RCA and USB cables
runs on Windaq or Windaq lite data logging software, available for free by download here. SKY-QD100 spec sheet available here.
Please contact us for current lead time on this product (custom made).
Specifications:
Electrical Specification |
Value |
Physical Specification |
Value |
Wavelength Range |
400-1100nm |
Sensor Size |
Ø7.8 mm |
Peak Responsivity |
0.4 A/W @ 633 nm 0.64 A/W @ 900 nm |
Dimensions |
3.0″ H x 2.0″W x 1.4″D (76.2 x 50.8 x 35.6mm) |
Max. Photocurrent |
200uA |
Gap between quadrants |
18 um or 42um |
Output Voltage Range |
Up to +/- 7.5V |
Clear Aperture |
Ø0.50″ (Ø12.7 mm) |
Bandwidth |
>25 KHz |
Mounting Thread |
#8-32 x 0.25″ min depth |
Recommended Spot Size |
<3.9mm dia. |
Adapter cable length |
6ft (182 cm) |
Supply Voltage |
24VDC |
Output Connectors |
RCA female |
AC Adapter (included) |
110-120V, 50-60Hz |
Power switch |
included |
Operating Temperature |
10-40 deg. C |
Weight |
3.7 oz. (106 g) |
Operation:
In most common applications where the intention is to measure the movement of a laser beam over time in the X-Y plane, the quadrant detector is first mounted on an optical table with the laser and the beam centered on the middle of the four quadrants of the detector. This gives a maximum sum value corresponding to the total energy of the beam, and if perfectly centered, the X and Y outputs will be balanced to zero. As the beam moves in either the X or Y direction, a voltage will appear on one or both of the X and Y outputs which is a fraction of the SUM voltage output. If the beam moves right or up, the voltage on X and Y increases positively, if left or down they increase negatively.