This is a collection of Polytec board photos from items I found on the Internet or eBay. Here is picture collection #1.
VM301-2200A Master Oscillator Board (80 MHz Bragg)
VM301-2260D Master & Local Oscillator Board (80 MHz Bragg and 30-60 MHz VCO)
VM301-2261D Master & Local Oscillator Board (80 MHz Bragg and 30-60 MHz VCO)
VM301-2300B Local Oscillator (30-60 MHz VCO)
VM301-2400C Output Board
VM301-2400E Output Board
VM301-2510A Input Board Scan.
VM301-7300B Replacement Board
VM301-5000G Delay Line Decoder (Velocity Decoder)
VM301-5000I Delay Line Decoder (Velocity Decoder)
VM301-5001A Delay Line Decoder (Velocity Decoder) (OVD-02)
The Polytec OVD-02 is the most popular velocity decoder. It uses a special FM decoding scheme. Its high bandwidth (1.5 MHz) and high amplitude (velocity 10 m/s and acceleration 9.600,000 g) ranges make it ideal for all applications ranging from low frequency measurements to ultrasonics and high-g events such as pyroshock.
VM301-7100E Quadrature Demodulator
Coaxial inputs are labeled "SUM", "DIR", "CARRIER", and "40 MHz REFR"
LT1016, MCL PSCQ-2-50, MCL SRA-1, MCL PLP-50, MCL PLP-30, MCL PLP-90
VM301-7200D Fringe Counter
I believe this is the "displacement board." It measures displacement by optical fringe counting. The optical "fringes" are converted to digital signal via a high-speed comparator (LT1016, on another board), which feeds a 12-bit up/down (phase lead/lag) ripple counter (74AS169), which feeds a parallel-loaded 12-bit digital-to-analog converter (DAC80). The DAC's current output signal is then converted to a voltage representation of the displacement (LH0032).
LH0032, DAC80-CBI-I, 74S132, 74AS169, 74LS123
VM302-2000A Bragg Cell
External 80 MHz input for a 40 MHz drive?
OFV-501 Sensor Head
CLV-M100 Input Module (Level Display)
CLV-M010 PLL Velocity Decoder
Analog
Velocity Ranges: 1 mm/s/V, 5 mm/s/V
Max. Velocity: 10 mm/s, 50 mm/s
Frequency Range: 0.5 Hz - 20 kHz, 0.5 Hz - 50 kHz
Resolution: 0.2 µm/s, 0.5 µm/s
Recommended Input Module: CLV-M100
Recommended Output Module: CLV-M001, CLV-M003
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CLV-M002 Output Module
Low-Pass Filters: 5 kHz, 20 kHz, 100 kHz, OFF High-Pass Filters: 100 Hz, OFF |
CLV-M300 Input Module
Max. Velocity: 500 mm/s
Suited for Decoders: CLV-M050/CLV-M060
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CLV-M050 DSP Velocity Decoder Module
16-bit Digital
Velocity Ranges: 2 mm/s/V, 10 mm/s/V, 50 mm/s/V
Max. Velocity: 20 mm/s, 100 mm/s, 500 mm/s
Frequency Range: 0 Hz - 50 kHz
Resolution: 0.1 µm/s, 0.2 µm/s, 0.5 µm/s
Recommended Input Module: CLV-M300
Recommended Output Module: CLV-M001, CLV-M003
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