C-995 Optical Chopper
- Brand: eachwave
- Type: C-995
The C-995 Chopper is designed with a phase-locked-loop control system, allows the chopping rate to also be synchronized to a user-supplied external clock ranging from 4 Hz to 5 KHz. The controller is then used to measure and display the frequency of the external clock.
The C-995 optical chopping head is attached to the controller by means of a 10 foot coiled cord. The precision etched blade is fully enclosed for protection from inadvertent damage. (An optional exposed or open head version is also available.)
There are two apertureson the chopper head and two sections (30 slots and 3 slots) on the blade for the high and
low frequency ranges, respectively. The aperture diameter is 15 mm with a slot width of 4.5 mm for the 30 slot section and 30 mm for 3 slot section. The small 4.75 inch square outline and two inch maximum depth of the chopper head permits easy integration into compact optical setups. Dual #8-32 mounting holes permit the apertures to be placed at a height as low as 0.75 inches above an optical bench, or with the included 1/2 inch rod and stand, as high as 13 inches above the mounting surface.
The ease of use and convenience of this instrument are matched only by the high performance to price ratio that is typical of products from Terahertz Technologies Inc. The C-995 is backed by our standard two year warranty and our guarantee of customer satisfaction.
Features:
Specifications:
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Wide Frequency Range 4 Hz to 5000 Hz
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Rock Solid Crystal Controlled Frequency
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Large 5 Digit LED Display
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Frequency resolution of 0.001 Hz
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External Clock Synchronization
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Covers 4 Hz to 5 KHz with only one blade
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Computer Interface for easy control
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Enclosed Chopper Blade
Chopping Frequency Range
4 Hz to 500 Hz ( Inner slots), 40 Hz - 5 KHz (outer slots)
Aperture Size
0.6 inch diameter (15 mm), and 0.6 inch by 0.2 inch (15 x 4.5 mm)
Frequency Control
Phase-Locked-Loop, Direct Digital Synthesis
Frequency Uncertainty
±.0025 % of setting
Phase Jitter
0.1 % peak to peak, 3 slot section, 1.0 % peak to peak, 30 slot section
Settling Time to Phase Lock
< 3 seconds
External Clock Input Requirements
TTL, CMOS Compatible Square Wave, 4 Hz to 5000 Hz
Sync Signal Output
TTL, CMOS Compatible Square Wave
Display
Five Digit, high intensity green, 0. 5 “ high
Temp. Coefficient of Chopping Frequency
< 10 ppm/C
Frequency Resolution (W/Rs-232 Control)
.001 Hz
Frequency Resolution (W/Front Panel Control)
.01 Hz
Counter Resolution using External Clock
0.1 Hz, 1 Hz
Rs-232 Interface
9600 Baud, N-8-1, 3 wire
Chopper Head Mounting
Standard 8-32 tapped holes, mounting rod and stand is provided
Chopper Blade Diameter
4.1 inch diameter
Operating Temperature Range
0 - 40 C
Dimensions (Head)
4.5 “ H x 4.5 “ W x 2 “ D, 114 mm x 114 mm x 51 mm
Dimensions (Controller)
2.7 “ H x 7 “ W x 9.1 “ D, 69 mm, 178 mm, 231 mm
Interconnecting cable supplied
Coiled Cord 10 feet max length
Power Requirements
95-260 VAC, 50-60 Hz, 15 VA Max
CE Certification
Yes
Weight
3 lbs, 1.36 Kg
Accessories Provided
Mounting rod and stand, Rs-232 cable, Power Cord, Operating Manual
Standard Warranty
Two years, Components and Workmanship, 30 Day Satisfaction Guarantee
Add: 3F-302,Focus Innovation Park,Yuanjiang Road No.3599,Minhang District,Shanghai P.R.C (201108)
Tel: 021-62209657
Fax: 021-54843093
