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  2. Electrical measuring instrument Chopping frequency 0.4 Hz to 20 kHz, can be synchronized with external signals Optical chopper SR542 type (Tokyo Instruments, Inc)
Electrical measuring instrument Chopping frequency 0.4 Hz to 20 kHz, can be synchronized with external signals Optical chopper SR542 type-SR542
Electrical measuring instrument Chopping frequency 0.4 Hz to 20 kHz, can be synchronized with external signals Optical chopper SR542 type-Tokyo Instruments, Inc

Electrical measuring instrument Chopping frequency 0.4 Hz to 20 kHz, can be synchronized with external signals Optical chopper SR542 type
Tokyo Instruments, Inc

About This Product

■Product overview

The SR542 optical chopper is a device for pulsing a continuous light source. Can be pulsed in the frequency range from 0.4 Hz to 20 kHz. Five types of slot blades are included as standard: 2 holes, 5/6 holes, 25/30 holes, 10/100 holes, and variable blades (10 to 90%), which can be used according to the frequency. The chopping frequency and phase can be synchronized to a variety of input sources, including an external synchronization signal (TTL or Sin), internal clock, VCO (0 to +10V) input, or line frequency. You can output a synchronization signal to the outside from the external sink output to a lock-in amplifier, etc. The chopper head uses a brushless motor to minimize mechanical vibrations. Comes with a removable blade case to ensure safety during experiments.

■Features

・Can be synchronized to various signals ・Chopping frequency 0.4 Hz to 20 kHz ・Low phase jitter ・0.01° phase resolution ・20 ppm frequency accuracy ・Single and dual beam optical system compatible ・Sum frequency, difference frequency reference output ・Long-life brushless motor ・Bottle clamp and rod mounting possible ・USB computer interface

■Applications

Pulsing continuous light

  • Product

    Electrical measuring instrument Chopping frequency 0.4 Hz to 20 kHz, can be synchronized with external signals Optical chopper SR542 type

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1 Models of Electrical measuring instrument Chopping frequency 0.4 Hz to 20 kHz, can be synchronized with external signals Optical chopper SR542 type

Image Part Number Price (excluding tax) Divisor m Weight Power consumption External dimensions Frequency accuracy Frequency stability Frequency resolution Synchronous frequency Output voltage Output frequency Input external synchronized sine wave Input external synchronization TTL Input edge trigger Input impedance Input VCO voltage Input VCO accuracy Phase resolution Multiplier n Chopping frequency (nslotsxfshaft) Shaft frequency (fshaft)
Electrical measuring instrument Chopping frequency 0.4 Hz to 20 kHz, can be synchronized with external signals Optical chopper SR542 type-Part Number-SR542

SR542

Available upon quote

Integer 1~200

Controller 2.1 kg
chopper head 0.6 kg

< 40W, 90-250VAC, 50/60Hz

Controller 211 × 104 × 233 (WHD, mm)
Chopper head 109 × 118 × 953 (WHD, mm)

±20ppm

±20 ppm/year

20 μHz or 6 digits, whichever is better

Internal frequency standard (0 Hz~23.1 kHz), VCO input, AC line, external synchronization (20 mHz~23.1 kHz)

Power supply, shaft (1 PPR), internal slot, external slot, sum (fouter+finner), difference (fouter－finner)

100 mVrms~1 Vrms, AC coupled (> 1 Hz)

Minimum 2V theoretical value

Rising, falling or sinusoidal

1 MΩ

0~10 VDC

±200ppm

0.01°

Integer 1~200

0.4 Hz~400 Hz (when using 2 hole slot blade)
2 Hz~20 kHz (when using 10/100 hole slot blade)

0.2Hz~200Hz

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About Company Handling This Product

Tokyo Instruments, Inc

Company Overview

Tokyo Instruments, Inc., established in 1981, and headquartered in Tokyo, Japan, is a manufacturer of opto-ele...

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