EOPC - Optical Resonant Scanners Phase Locked to an External Clock Signal


	• 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

SC-SYS-1S Resonant Scanners Phase Locked to an External Clock Signal

SC-SYS-1S

DESCRIPTION

CAD DRAWINGS

FEATURES AND ADVANTAGES

Phase locked to an external clock input
10 Hz to 16 KHz frequency range
0.01% phase stability
Position output/monitor output
0.01% or better amplitude stability



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The SC-SYS-1S scanning system locks a resonant scanner to an external clock.
The PLD-1S driver phase locks any resonant scanner (type SC, except for the subminiature scanners) to an external clock signal, to provide an ultra stable scanning beam motion [sub] system. The system can be used as a "stand alone" unit, in the laboratory, or can be incorporated into a larger instrument/system. The scanner is ONE FIXED FREQUENCY, picked from the range of 5 Hz to 20 kHz. The scanner is a small size, light weigh, low cost and long life device. It requires low power drive electronics and does not radiate electromagnetic interference (EMI). The scanner has high amplitude stability and very low amplitude jitters; wobble is less than 1 arc sec. The scanner is IR, VIS and UV and high vacuum capable. Reference signal and position output available.

Although the scanner can be used in a large temperature range this driver is not recommended for use in temperature sensitive applications. To lock the scanner to an external clock signal you need to specify the exact clock frequency (to 4 decimal places). The phase relationship to the clock is factory set to customer's requirements (0° to 360°).

The PLD-1S-110 or PLD-1S-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" × 10" × 3.8"
The PLD-1S-110/220 is a boxed driver with a line switch selector for operating from a line voltage of 110Vac or 220Vac.
The PLD-1S-PC driver is a printed circuit board level driver which requires an external +/-15V DC power supply.

The phase relationship to the clock is factory set to customer's requirements (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-1S-PC driver is a printed circuit board level driver which requires an external ±15V DC power supply.

CLOCK REQUIREMENTS

   EXTERNAL CLOCK STABILITY

   +/-50 PPM

   EXTERNAL CLOCK ACCURACY

    100 PPM

FRONT PANEL CONTROLS
POWER	Power switch to turn the drive "ON"
CLOCK IN(PUT)	External clock input (TTL or sine wave), BNC connector
LOCKED MODE	The scanner is phase locked to the clock signal
OSCILLATOR MODE	The scanner is self oscillating at its resonant frequency (not locked to the clock input)
PHASE CONTROL POT	Phase adjustment of the scanner in relationship to the clock, +/-45°C min.
POSITION MONITOR	Scanner position output, BNC connector
AMPLITUDE CONTROL	Scan amplitude adjustment POT
OUTPUT	Output connector to interconnect to the scanner

SPECIFICATIONS
Frequency range	5 Hz to 16 kHz
External clock signal	TTL level, sine or square wave (1V PTP to 20V PTP)
External clock stability	+/-50 PPM
Scanner's amplitude stability	0.01% or better (not locked to the clock input)
Position monitor	Analog position output, +/-5V max. 1kOhm max load
Phase adjustment range	+/-45° min.
Phase stability	0.01%
Phase relationship	Factory set to customer's specifications
Operating temperature range	Room temperature only
Power input	110V ac or 220V ac, 50-60 Hz, 20W

CHARACTERISTICS:
Frequency Range for X axis	10 Hz to 16 KHz
Frequency Range for Y axis	DC to 100Hz
Position Monitor	Analog position output, 0.1%
Scanners' Amplitude Stability	0.01% or better
Phase Stability	0.1%
Frequency Ratio Fx/Fy (lines per frame)	Factory set to customer's spec.
Operating Temperature Range	0 - 60 °C

CLOCK REQUIREMENTS
EXTERNAL CLOCK STABILITY	+/-50 PPM
EXTERNAL CLOCK ACCURACY	100 PPM