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Product details
Optical Chopper
Rotating Disc Optical Choppers
Optical chopper is a mechanical method to repeatedly switch light beams, which is generated by a rotating blade to perform chopping operations.
Specific product list:
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300CD |
The most popular chopper, with a standard option in the range of 5Hz to 3kHz, can reach up to 40KHz |
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310CD |
A high-speed chopper system can reach 110kHz |
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340CD |
The 200mm disc system ensures that large beams can be cut off |
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350CD |
The 30mm disc optical chopper system provides a small chopper plate |
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360C |
A small, compact, and low-cost system is highly suitable for OEM applications |
300CDProduct Features:
·The Scitec Instruments model 300 CD is a highly stable variable frequency optical chopper. The basic system consists of a control unit, a cutting head, and a set of four chemically blackened photo etched discs. This system provides a frequency range of 5Hz to 3KHz for operation. Wide selection of additional chopper plates and accessories can expand the frequency range to meet individual needs.
·5 Hz -3 kHz standard optical chopping frequency range (0.015 Hz to 40 kHz available for selection)
·102mm diameter chopper plate
·Control unit selectable
·Compact optical chopper head
·Low noise and vibration
·Photochemical etching non-magnetic chopper plate
·Variable aperture
·Wide range of accessory selection
Product detailed specifications:
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Output voltage: 15V DC Maximum. |
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Stability: ±0.01%/°C |
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Frequency control: Internal - Manual Control via 10 turn potentiometer. External - BNC connector for 0 to 15V. |
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Frequency output display: 5 digit 14mm LED display with 0.01Hz resolution, 0.1Hz or 1Hz resolution depending on frequency. |
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Frequency stability: Short term - see phase jitter. Long term - ±0.1% of maximum frequency. |
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Reference output: 5V HCT TTL signal via BNC socket. |
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Power supply: 100-130V or 200-260V AC, 50 or 60Hz, 12 VA. |
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Size: 254(W) x 76(H) x 178(D)mm |
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Weight: 2.6kg |
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300H Chopping Head
·Electric motor: 11 pole DC motor with sliding bearings, with a lifespan of over 6000 hours, reversible from 0-6000 rpm.
·Reference sensors: infrared LED and phototransistor with Schmitt trigger.
·Size: 73 (H) x 75 x (L) 32 (W) millimeters, without chopper plate.
·Installation: Optical rod - adjustable diameter from 6.5 to 14.0 millimeters, mounting holes -2 x 3 millimeters.
300DOptional chopper plate
·Cut wave plate types: 2, 5, 10, and 30 holes
·Material: Semi hard brass, 0.5mm thick
·Size: 102mm
·Surface finish: Chemical black coating
·Duty cycle: 1:1 per slot
Frequency range:
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Chopper plate |
frequency(Hz) |
aperture |
Phase jitter,maximum |
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r |
a |
b |
d |
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300D2 |
5 - 200 |
32.0 |
77.0 |
26.7 |
32.0 |
±0.2° |
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300D5 |
12.5 - 500 |
32.0 |
30.8 |
10.7 |
23.1 |
±0.5° |
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300D10 |
25 - 1000 |
32.0 |
15.4 |
5.4 |
13.2 |
±1° |
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300D30 |
75 - 3000 |
32.0 |
5.1 |
1.8 |
4.8 |
±3° |
Product accessories:
200 slot chopper wave plate increases frequency range to 20KHz
445 slot chopper plate increases frequency to 40KHz
Protector for Cutting Head and Wave Plate
High frequency accessories ensure that the 26mm beam can be adjusted to 20KHz
High frequency accessories (445) ensure that a 10mm beam can be modulated at 40KHz
Ordering information:
Model 300CD：
A complete optical chopper system with frequency display includes: 300CD control unit, 300H chopper head, 300I connecting cable, 300D chopper plate group, and IEC power cord.
The biggest feature of this product is the ability to customize chopper plates according to customer needs.
For more details, please contact us!!!
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