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鎖相光斬波器

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  • 所在地北京市
  • 更新時間2022-04-15
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  • 所在地區北京市
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  • 產品數量807
  • 人氣值2521
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北京波威科技有限公司坐落于北京海淀中關村高科技園區,是一家集生產、研發、銷售及代理為一體的光電領域的高科技技術服務公司。 產品涉及激光、光電子、光通訊、光學、物理、電子和生物等多個學科領域,可廣泛應用于教學、科研、產品開發及規模生產。業務范圍覆蓋了國內各大高校、所屬各研究所、航天科工/科技集團所屬研究所、中電集團所屬研究所、所屬各研究所等不同系統內的研究機構及相關領域內的高科技公司。 波威公司始終堅持高起點,高要求,與國際一線生產廠商攜手,做到產品在技術上同行,秉承嚴謹的科學態度,務實的工作作風,誠實的經營理念,與廣大客戶攜手共創美好明天! 我們的產品有:固體激光器、半導體激光器、可調諧激光器、光纖激光器、窄線寬激光器、激光測量儀器與配件、太赫茲、高速光電探測器、紫外探測器、紅外探測器、超快探測器、焦平面陣列探測器、科學相機、光譜儀、高光譜成像系統、光束質量分析儀、空間光調制器、聲光調制器、電光調制器、高速光開關、光發大器、光衰減器、可調諧濾波器、波長轉換器、高溫光纖、紅外光纖、能量光纖、微波放大器、微波元器件、光學透鏡等光電類產品。
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PhaseLockedOpticalChoppers◆Stableandreliablephaselocking◆Choppingisphase-lockedtoaninternalfrequencysynthesizer◆Frequenciesfrom4Hzto10.65kHz◆Locktoexternalreferencesforharmonicorsub-harmonicchoppingTh
鎖相光斬波器 產品詳情

詳細信息

Phase Locked Optical Choppers

Stable and reliable phase locking

Chopping is phase-locked to an internal frequency synthesizer

Frequencies from 4 Hz to 10.65 kHz

Lock to external references for harmonic or sub-harmonic chopping

The 3502 optical chopper provides rock-solid stability and ?exibility because its chopping frequency is phase-locked to its own internal frequency synthesizer. It can chop from 4 Hz to 10.65 kHz, using either the internal frequency synthesizer or an external source as the reference. You can chop at the fundamental, a harmonic (2 to 15), or even a sub-harmonic (1/2 to 1/15) of the reference.

主要特點:

Complete Chopper System

 

 

The 3502 optical chopper comes complete with six chopper wheels, a wheel cover, and a controller with A USB interface.

Stable and Reliable Phase Locking

For stable chopping with minimum jitter and drift, the Model 3502 optical chopper uses precision photo-etched wheels mounted on a high-quality DC motor. In addition, the chopper controller has its own internal crystal-controlled frequency synthesizer and phase-locked loop for precisely locking the chopping frequency. A photo-interrupter on the chopper head monitors the chopping frequency, and the chopper controller actively stabilizes the motor speed to ensure stable chopping with a minimum of frequency drift.
In internal-reference mode, the chopper controller uses its internal frequency synthesizer as the reference. When the Model 3502 is operated in external-reference mode, the chopping rate is locked to the user-provided reference from another chopper or signal source. The chopper may also be run asynchronously with the rear-panel analog-control-voltage input. In all cases, the frequency-synthesizer output is available on the front panel for use in your measurement setup. The reference signal can be divided and multiplied by the sub-harmonic and harmonic generators before being processed by the phase shifter.

Unique Chopper Features

Unique features of the Model 3502 include outputs at the sum and difference of the inner and outer wheels’ chopping frequencies for nonlinear-optics experiments, and a high-stability phase shifter that can lock two choppers together for long ?uorescence-decay measurements. The chopping frequency, as well as a number of other operating parameters, can be viewed on the front panel display. Easy-to-use cursor keys provide easy adjustment of operating parameters.

Six Broadband Absorber Coated Chopper Wheels Included

 

 

Six chopper wheels are included with the 3502 optical chopper system allowing for chopping frequencies from 4 Hz to 10.65 kHz. Shown in the top row are 2-slot and 60-slot wheels. The middle row shows 7/5-slot and 42/30-slot wheels, and the bottom row shows 60/2-slot and 100-slot wheels. All chopper wheels are 4.50 inch (114.3 mm) diameter.

Advanced Optical Chopper Controller

 

 

The front panel display of the controller allows monitoring of the chopping frequency, as well as a number of other operating parameters. Easy-to-use cursor keys provide easy adjustment of operating parameters. The chopping rate may be set from 4 Hz to 2.00 kHz, using either the internal frequency synthesizer or an external source as the reference. Chopping mode options are selectable at the fundamental, a harmonic (2 to 15), or even a sub-harmonic (1/2 to 1/15) of the reference.

Optical Chopper Setup Instructions

Optical Chopper Initial Diagnostic Instructions

 

INTERNAL SYNTHESIZER

Stability

100 ppm after one hour warm-up

Drift

Less than 10 ppm/°C

Accuracy

< 1/5 of least significant digit

Resolution

3 significant digits

Range limits (EXT)

4 Hz to 2.00 kHz

REFERENCE INPUT

Input Type

Sync InTTL-level pulse

Frequency Limit

Same as internal oscillator

Pulse width

≥ 1 µs

REFERENCE OUTPUT

Sync Out

TTL level square wave
May be used as free-running oscillator
when using EXT+, EXT- or Vext Sync setting

Fouter

TTL-level square wave at the chopping frequency

OUT 1

TTL level pulse: 
5*Fouter in NORMAL mode 
(H/S)*Fouter in H/S mode

OUT 2

TTL level pulse: 
[H/(7*S)]*Fsync in H/S mode

PHASE SHIFTER

Range

-180.0° to +179.0°

Resolution

0.1°, increasing to 0.25° at 2.0 kHz

HARMONIC LOCKING

Harmonic (H)

1 to 15

Subharmonic (S)

1 to 15

EXTERNAL VOLTAGE CONTROL

Voltage

0 to 10.0 VDC

Control Range

0 to 99% of maximum chopping frequency

GENERAL

Net Weight

2.59 kg [5.7 lbs], including chopper head

Electrical Ratings

100 to 240 VAC, 50 to 60 Hz
25 Watts

Operating Environment

10°C to 40°C [50°F to 104°F]
≤ 90% humidity, non-condensing

Storage Environment

0°C to 50°C [32°F to 122°F]
≤ 90% humidity, non-condensing

Altitude

< 3000 meters [10000 feet]

Pollution Degree

2

 

產品規格:

 

 

 

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