• 62-40 FOREST AVE, 2nd FLOOR, RIDGEWOOD, NY 11385 • TEL: (718) 456-6000 • FAX: (718) 456-6050 • www.EOPC.com P.O. BOX 650441 FRESH MEADOWS, NY 11365

Modulators and Choppers Locked in a Master/Slave Mode

	home about EOPC our vision core values diversity and inclusion the environment quality policy supply chain conflict minerals optical modulators / choppers / shutters tuning fork (fixed frequency) choppers variable frequency choppers choppers / shutters rotating wheel (variable frequency) choppers optical chopping / modulating systems optical chopping systems locked to ext. clock optical chopping systems locked in master/slave mode optical SAFETY shutters laser safety (interlock) shutters X-Ray (interlock) shutters optical shutters, choppers and filters optical shutters / choppers optical choppers / shutters filter selectors optical scanners and deflectors resonant (fixed frequency) scanners beam deflectors optical scanning / deflecting systems - optical scanners locked to an external clock signal - optical scanning systems to generate a circle or an ellipse or to lock optical scanners in phase or out of phase - optical scanning systems to generate a Raster Scan or Lissajous Patterns - X,Y raster scanning systems - 2-axis deflectors drivers ED Driver AGC Driver PLD-1C Driver PLD-1S Driver PLD-2C Driver PLD-2S Driver PLD-2SXY Driver PLD-XYG Driver DCH-40 Driver DCH-50 Driver DCH-60 Driver DSH-10 Driver DSH-20 Driver DSH-35 Driver DSH-65 Driver other products Filter selectors Rotating Wheel Optical Choppers photo diode amplifiers o/e and e/o converters fiber optic multiplexers fiber optic video links laser vibrometers Photodiode Transimpedance Amplifier Analog / digital fiber links Optical time domain reflectometers Optical spectrum detectors Tuneable laser sources Variable optical attenuators Loss test sets Fiber optic power meters Light sources Visual fault locators Video probes Fiber identifiers Data Sheets contact us careers

SPECIFICATIONS   Frequency Range   5 Hz to 20 kHz   Choppers' Amplitude Stability   0.01% or better   Reference Output   Sine and TTL level square wave   Phase Adjustment Range   ±45° minimum range   Phase Stability   0.01%   Phase Relationship   Factory set to customer's spec.   Operating Temperature Range   0 - 60 °C   Power Input   110V ac or 220V ac, 50-60 Hz, 20W

The [sub]system consists of two resonant optical choppers (type CH), chopper "A" and chopper "B", in a MASTER/SLAVE mode. The system can be used as a "stand alone" unit, in the laboratory or as a portable instrument, or incorporated into a larger instrument/system. The two modulators are ONE FIXED FREQUENCY each, picked from the range of 5 Hz to 20 kHz. They are small size, light weight, low cost and long life devices. They require low power drive electronics and do not radiate any electromagnetic interference (EMI). The choppers have high amplitude stability and high frequency stability. They are IR, VIS, UV. Reference signal and position output available.

The PLD-2C driver phase locks two choppers. Chopper "B" is phase locked to chopper "A" (the slave is locked to the master). The phase relationship to the master is factory set to customer's requirement (0° to 360°) and is front panel adjustable in a range of ±45 ° minimum. The driver can be a fully integrated driver with front panels controls and internal power supplies or a printed circuit board level driver. The dimensions of the cased driver are: 12" × 10" × 3.8". The PLD-2C-PC driver is a printed circuit board level driver, which requires an external ±15V DC power supply.