EOPC - Resonant Optical Choppers Locked in a Master/Slave Mode

	ELECTRO-OPTICAL PRODUCTS CORPORATION



	P.O. Box 650441 • Fresh Meadows, NY, 11365, USA • Tel: 718-456-6000 • Fax: 718-456-6050 • www.eopc.com

PLD-2C DRIVER LOCKS TWO TUNING FORK CHOPPERS IN A MASTER/SLAVE MODE

PLD-2C PLD-2C-PC

DESCRIPTION

CAD DRAWINGS

FEATURES AND ADVANTAGES

Locks two tuning fork choppers in a master/slave mode
10 Hz to 6 kHz frequency range
Both sine wave and square wave reference signals
Clock stability +/-50 PPM
0.01% phase stability
Position output
0.01% or better amplitude stability

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The PLD-2C driver phase locks two choppers. The [sub]system consists of two resonant optical choppers (type CH), chopper "A" and chopper "B", in a MASTER/SLAVE mode, to provide ultra stable modulating beam motions. The system can be used as a "stand alone" unit, in the laboratory or as a portable instrument, or incorporated into a larger instrument or system.

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° min. 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.

The PLD-2C-110 or PLD-2C-220 driver is a boxed driver for 110V or 220V (please specify). The driver has front panel controls for amplitude and phase and internal power supplies. The dimensions of the cased driver are: 12 X 10 X 3.8"
The PLD-2C-110/220 is a boxed driver with a line switch selector for operating from a line voltage of 110Vac or 220Vac.
The PLD-2-PC driver is a printed circuit board level driver which requires an external +/-15V DC power supply.

FRONT PANEL CONTROLS
POWER	Power switch to turn the drive "ON"
LOCKED MODE	The choppers are phase locked in a master/slave mode
OSCILLATOR MODE	The choppers are self oscillating at their resonant frequency (not locked)
PHASE CONTROL POT	Phase adjustment of choppers in relationship to each other, +/- 45
MONITOR A & B	Chopper position output for each chopper, BNC connectors
AMPLITUDE A & B	Amplitude adjustment POT for each chopper
OUTPUT A & B	Output connector to interconnect to each chopper

SPECIFICATIONS
Frequency range	10 Hz to 6 kHz
Monitor	Analog position output, +/-5V max, 1kOhm max load for each chopper
Phase adjustment range	+/-45° min.
Phase stability	0.01%
Phase relationship	Factory set to customer's specifications
Operating temperature range	0-60°C
Power input	110V ac or 220V ac, 50-60 Hz, 20W

ORDERING INFORMATION: A) CHOPPER INFORMATION:
TYPE [CH-XX]; MIRROR SIZE [mm]; ANGLE [P-P Deg. optical]; FREQUENCY [Hz]
Example: PART NO. SC-10-10×10-20-100. This part number specifies the model SC-10 scanner, a 10mm square mirror, a 20° peak to peak optical scan angle and a 100 Hz operating frequency.

B) DRIVER INFORMATION:
Per customer's specifications