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鎖相光斬波器

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公司名稱北京波威科技有限公司
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更新時(shí)間2021/8/20 12:49:41
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北京波威科技有限公司坐落于北京海淀中關(guān)村高科技園區(qū)，是一家集生產(chǎn)、研發(fā)、銷售及代理為一體的光電領(lǐng)域的高科技技術(shù)服務(wù)公司。產(chǎn)品涉及激光、光電子、光通訊、光學(xué)、物理、電子和生物等多個(gè)學(xué)科領(lǐng)域，可廣泛應(yīng)用于教學(xué)、科研、產(chǎn)品開發(fā)及規(guī)模生產(chǎn)。業(yè)務(wù)范圍覆蓋了國內(nèi)各大所屬各研究所、航天科工/科技集團(tuán)所屬研究所、中電集團(tuán)所屬研究所、所屬各研究所等不同系統(tǒng)內(nèi)的研究機(jī)構(gòu)及相關(guān)領(lǐng)域內(nèi)的高科技公司。波威公司始終堅(jiān)持高起點(diǎn)，高要求，與一線生產(chǎn)廠商攜手，做到產(chǎn)品在技術(shù)上秉承嚴(yán)謹(jǐn)?shù)目茖W(xué)態(tài)度，務(wù)實(shí)的工作作風(fēng)，誠實(shí)的經(jīng)營理念，與廣大客戶攜手共創(chuàng)美好明天! 我們的產(chǎn)品有：固體激光器、半導(dǎo)體激光器、可調(diào)諧激光器、光纖激光器、窄線寬激光器、激光測(cè)量?jī)x器與配件、太赫茲、高速光電探測(cè)器、紫外探測(cè)器、紅外探測(cè)器、超快探測(cè)器、焦平面陣列探測(cè)器、科學(xué)相機(jī)、光譜儀、高光譜成像系統(tǒng)、光束質(zhì)量分析儀、空間光調(diào)制器、聲光調(diào)制器、電光調(diào)制器、高速光開關(guān)、光發(fā)大器、光衰減器、可調(diào)諧濾波器、波長轉(zhuǎn)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(xué)透鏡等光電類產(chǎn)品。

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PhaseLockedOpticalChoppers◆Stableandreliablephaselocking◆Choppingisphase-lockedtoaninternalfrequencysynthesizer◆Frequenciesfrom4Hzto10.65kHz◆Locktoexternalreferencesforharmonicorsub-harmonicchoppingTh

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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(diǎn)：

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
F_outer	TTL-level square wave at the chopping frequency
OUT 1	TTL level pulse: 5F_outer in NORMAL mode (H/S)F_outer in H/S mode
OUT 2	TTL level pulse: [H/(7S)]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 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