Optical Chopper - Stanford Research Systems - #1

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Ordering Information SR540 Optical chopper $1195 O5402530 25/30 dual-slot replacement blade $50 O54056 5/6 dual-slot replacement blade $50 O5405 5-slot replacement blade $50 O54030 30-slot replacement blade $50 O540RCH Replacement chopper head $350 Stanford Research Systems phone: (408)744-9040 www.thinkSRS.com Chop frequency 4 Hz to 400 Hz (5/6 slot blade) 400 Hz to 3.7 kHz (25/30 slot blade) Frequency stability 250 ppm/°C (typ.) Frequency drift <2 %, 100 Hz < f < 3700 Hz Phase jitter (rms) 0.2° (50 Hz to 400 Hz) 0.5° (400 Hz to 3.7 kHz) Frequency display 4-digit, 1 Hz resolution and accuracy Frequency control 10-turn pot with 3 ranges: 4 Hz to 40 Hz 40 Hz to 400 Hz 400 Hz to 3.7 kHz Input control voltage 0 to 10 VDC for 0 to 100 % of full scale (Control voltage overrides frequency dial) Reference modes ƒinner, ƒouter, 5 × ƒouter, ƒinner + ƒouter, ƒouter - ƒinner Dimensions Controller: 7.7" × 1.8" × 5.1" (WHD) Head: 2.8" × 2.1" × 1.0" (WHD) Blade diameter 4.04" ± 0.002" Cable length 6 ft. Power 12 W, 100/120/220/240 VAC, 50/60 Hz Warranty One year parts and labor on materials and workmanship, 90 days on motor SR540 Specifications Optical Chopper SR540 . Optical chopper system The SR540 chopper will handle all your optical chopping requirements.from simple measurements to dual-beam and intermodulation experiments. The SR540 has a 4-digit frequency display, front-panel frequency control, analogvoltage frequency control, and two reference outputs with selectable operating modes. Two anodized aluminum blades are provided: a 5/6 slot blade for frequencies up to 400 Hz, and a 25/30 slot blade for frequencies up to 3.7 kHz. Reference outputs are provided for frequencies corresponding to each row of slots, as well as the sum and difference frequencies. www.thinkSRS.com · 4 Hz to 3.7 kHz chopping frequencies · Low phase jitter · Single and dual beam experiments · Sum & difference reference outputs · Bolt clamp or rod mounting · SR540 ... $1195 (U.S. list)