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| OT-301 Versatile Position Sensing Amplifier
For: Duolateral, Tetralateral, One Dimensional, Quad, BiCell |
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| The OT-301 Versatile Position Sensing Amplifier is one in the series of ON-TRAK's Position Sensing Instruments for high performance, low cost, dedicated instruments for optical position sensing applications. These instruments provide precision position sensing required by applications such as laser beam alignment, beam centering and bore-site alignment. ON-TRAK position sensing instruments facilitate easy measurement of angle, surface uniformity, flatness, parallelism, straightness and a host of other applications. |
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| These Position Sensing Instruments are designed for one and two-dimensional absolute optical positioning or for precision centering and nulling requirements using a quadrant detector. The optical beam is focused on the appropriate detector. The photocurrent generated is processed by a four channel amplifier system using a position sensing algorithm to give an X, Y analog output which is directly proportional to beam position, independent of intensity fluctuations. With the appropriate optical configuration, this X-Y normalized output provides a solution for numerous applications. |
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Features:
- X, Y Analog Position Output Voltages
- Sum Output
- Wide Dynamic Range .1µA to 1.5mA
- DC -15 kHz
- Compatible With All Position Sensing Detectors
- Zero Offset / Nulling
- Calibration Adjust
- Automatic Detector Bias
Detector Compatibility:
- One Dimensional PDS
- Common Anode
- Common Cathode
Two-Dimensional PSD:
- Duolateral
- Tetralateral Common Anode
- Tetralateral Common Cathode
- Pin Cushion Tetralateral
Quad and Bi-Cell:
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The ON-TRAK OT-301 is designed to provide an X-Y position output and sum output from duolateral, tetralateral, single axis, quadrant and bi-cell position sensing detectors.
The OT-301 has four transimpedance amplifiers and signal processing electronics to provide a normalized position and sum output. The OT-301 has six gain settings to accommodate input current ranges from .1µA to 1.5mA with a frequency response to 15kHz. A convenient ZERO adjust allows the user to electrically move the zero to a relative position on the PSD. A CAL adjust allows calibration to absolute position.
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| Range: |
Transimpedance gain 4x10(3) V/A to 4x10(6) V/A
Input current range .1pA to 1.5mA |
| Hi: |
Input optical power exceeds range selected |
| Low: |
Input optical power lower than range selected. Set range switch at a position where both HI/LOW indicators are off. |
| X,Y Zero: |
Zero potentiometers to allow an electronic offset of zero (+/- V each axis) |
| X,Y Cal: |
Gain potentiometers to allow calibration of volts out in terms of displacement (+/_ 10% full scale) |
| CAL/ZERO |
CAL/ZERO "ON" allows use of the X, Y, ZERO and X,Y CAL features |
| ON/OFF |
CAL/ZERO "OFF" disables these features |
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| X Out |
Normalized X axis output (+/- 10V) |
| Y Out: |
Normalized Y axis output (+/- 10V) |
| Sum: |
Total amplified detector output (0-10V) |
| Bias ON/OFF: |
BIAS OFF- No reverse bias applied to detector
BIAS ON- Applies reverse bias to detector |
| Bias +5/-5V Cal: |
Bias polarity detector dependent |
| Pol Pos/Neg: |
(Polarity Positive/Negative) Common Cathode/Common Anode |
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| Specifications: OT-301 Versatile Position Sensing Amp |
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Transimpedance Gain (V/A)
Four Input Channels |
4x10(3) to 4x10(6) |
| Input Current Range |
.1pA to 1.5mA |
Output Voltage
Position X,Y
Sum |
+/- 10V
0-10V |
| Zero Offset (Offset Null) |
+/- 1V Each Axis |
| Calibration Adjust |
+/- 10% of reading |
| Detector Bias |
0V, +/-5V (Duolateral 0,5,10V) |
| Linearity |
+/-0.1% |
| Frequency Response |
DC to 15 kHz range dependent |
| Gain-Bandwidth 1/2? RC |
G1 4x10(3) A/V 15 kHz
G2 1.6 10(4) A/V 15 kHz
G3 6 4x10(4) A/V 5 kHz
G4 2.5 6x10(6) A/V 1.25 kHz
G5 1.02 4x10(6) A/V 310 Hz
G6 4x10(6) A/V 80 Hz |
| Output Connectors |
BNC |
| Input Connectors |
Sub Min, D9 PIN |
| Power Requirement |
+12 VDC
300mA
A/C Adapter |
| Dimensions |
5.57 x 1.52 x 6.00 in. |
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*10(-3) A/V, 10(-4) A/V, etc., equals 10 to the 3rd, 4th, etc., power |
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 Download PDF Version |
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