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Optical Chopper
These high stability variable frequency optical choppers each include a set of chemically blackened photoetched chopping discs. The mini chopper is an excellent choice for applications requiring a compact package. The chopping discs come in a variety of slot apertures and allow operation. Beam diameter is limited to 0.75mm when using the 200-slot disc and 1.0mm when using the 40 slot mini disc. The easy-to-interchange blades are made of non-magnetic, half hard brass and can be used in combinatio...show more -
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Optical Chopper
SR540
Stanford Research Systems, Inc.
The SR540 chopper will handle all your optical chopping requirements?from simple measurements to dual-beam and intermodulation experiments. The SR540 has a 4-digit frequency display, front-panel frequency control, analog voltage frequency control and two reference outputs with selectable operating modes.
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Rotating Optical Chopper
300C and 300CD
Scitec Instruments Model 300 is a high stability variable frequency optical chopper. The basic system consists of a control unit, a chopping head and a set of four chemically blacked photo etched discs. This system provides operation over the frequency range 5Hz to 3kHz.
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Ultra Miniature Rotating Optical Chopper
360C
A small compact low cost system suitable for OEM use. 10 Hz - 14,000 Hz standard chopping frequency range.
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Miniature Rotating Optical Choppers
350C and 350CD
Model 350 is a high stability variable frequency optical chopper. The basic system consists of a control unit and a chopping head. It is supplied with four chemically blacked 30 mm diameter discs. These discs are of 2, 4, 10 and 40 slots and allow operation over the frequency range 10 Hz to 10 kHz.
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High Speed Optical Choppers
The Optical Choppers offered by Hinds Instruments are resonant devices designed to work at one frequency. We offer two ways to chop light: a High Speed Optical Chopper (HSOC) and a Photoelastic Modulator (or PEM).
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Large Rotating Disc Optical Chopper
L340CD
An optical chopper based on 200 mm diameter discs. The larger disc size allows larger diameter beams to be chopped.
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Resonant Chopper Systems
Electro-Optical Products Corp.
An external clock signal, to provide an ultra stable modulating optical beam motion [sub] system. The system can be used as a "stand alone" unit, in the laboratory, or can be incorporated into a larger instrument/system. The chopper is ONE FIXED FREQUENCY, picked from the range of 5 Hz to 20 kHz. The chopper is a small size, light weigh, low cost and long life device. It requires low power drive electronics and does not radiate electromagnetic interference (EMI). It has high frequency stability and high amplitude stability. The chopper is IR, VIS and UV and high vacuum capable. Reference signal and position output available.
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Photoluminescence & Electroluminescence Measurement System (PL/EL)
PL
PL/EL Measurement System includes Laser, Spectrometer, Lock-in amplifier, Optical Chopper, Sample Holder(PL/EL), PMT/CCD, Fiber, Optical optics, Optical Table, Refrigerator(low temperature),Sample Chamber and related accessories;
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Energy Modulator
IR-762
Infrared Systems Development Corp.
The IR-762 Energy Modulator is a variable speed rotating disk chopper designed for use with radiation sources, including blackbody, tungsten filament, mercury lamps, Nernst glowers and as part of instruments where modulated radiation is needed.
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Detection Electronics
Our detection electronics portfolio comprises all the detection electronics elements required for the operation and automation of a high quality light measurement system, including photo-detector signal recovery and digitisation (with fully programmable DC, AC and lock-in amplifiers having current/ voltage inputs), high voltage supply, optical chopper control, detector thermoelectric cooler control and relay unit.
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Modules - Modules, IGBT
Vishay's IGBT modules are available with several different configurations, including half-bridge, full-bridge, chopper, and 6PAK inverter. A wide collector current range, up to 200 A, is available.
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WireChop
A cost-effective, proven defect chopper system that works with both bench presses and automatic machines
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CM-Series
Computer Gesteuerte Systeme GmbH
The MCM is designed to drive a variety of brushed motors. This is the CM version of our IMCM. The overload-proof 4-quadrant chopper outputs voltages between 5.5V to 16V up to a constant load of 16A (32A peak). The PWM can be set between 1kHz and 20kHz. The module is protected against undervoltage and overvoltage, shuts down automatically when overheating and is also equipped with a linear current limiting.
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Digital Static Field Meter
Model 715B
- Assess electrostatic fields or charge on objects- Measures up to ±19.99 kV at a distance of 1 inch- Accuracy of <±5% in both normal and ionized environments- Uses a chopper stabilized sensor- LED ranging lights for positioning the meter at the right distance- Zero function allows the display to be adjusted to zero (0)- Hold feature to lock the reading on the display- Low battery indicator on the display- 1-year limited warranty
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Zero-Drift Op Amplifiers
The zero-drift amplifiers from Analog Devices combine both auto-zero and a chopper to self-correct continuously for dc errors over time and temperature, enabling the amplifier to achieve microvolt-offsets and nanovolts per degree Celsius drift. By design, the zero-drift amplifier has no 1/f noise nor does it suffer from long-term drift.
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Saluki SE3001 Optical Chopper (1Hz - 10kHz)
SE3001 Optical Chopper is high-precision optical equipment with its chopper frequencies from 1 Hz to 10 kHz. With the advantage of PID technology and high-quality motor, the frequency accuracy of SE3001 is up to 0.5%. SE3001 consists of a console, a chopper head and a control line. The main function of the console is to control the speed of the motor to achieve the target speed. The chopper head is mainly composed of a base and a motor with a blade.
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Optomechanical Devices
Optomechanical devices include an optical chopper, scanning galvo mirrors, adaptive optics, a motorized pinhole wheel, a piezo objective scanner, a motorized flip mount, motorized filter wheels, and optical beam shutters.
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Photonics Testers
Optical choppers, optical to electric converters, fiber optic links, and other photonics testers
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Reflective Condenser
Reflective condensing system and focusing accessory for coupling light sources to monochromators. It uses two mirrors to focus to the entrance slit. The reflective system eliminates chromatic aberration, provides maximum spectral range, and does not require refocusing. Accessories like light choppers and filter wheels can also fit inside next to the slit. Versions with rotatable mirror available for up to four source direction.
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Power Probes
RkP-500 Series
The RkP-500 Series probes take advantage of synchronous detection (chopper/lock-in amplifier) technology to offer unparalleled background noise rejection, S/N ratio, and sensitivity. Total power, average power, and irradiance can be measured. The probes can be mounted directly onto the Rk-570C Optical Chopper to form an integrated measurement system, or the chopper can be operated remotely from the probe.
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Electrostatic Fieldmeter
Model 775
The pocket-sized Simco-Ion Model 775 Handheld Electrostatic Fieldmeter is designed to locate and measure static charge potentials on product, people, equipment and packaging. The Model 775 Fieldmeter uses a non-contacting, chopper stabilized field sensor and a ranging light mechanism to ensure correct measurements of electrostatic fields in all areas—even those using air ionization.
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Optical Components for Custom Spectroscopy
HORIBA offers a wide variety of optical accessories. We have optical choppers which pulse continuous light sources. Explore our order sorting filter wheels for spectrographs and monochromators. Choose from our optical fibers and light guides, with flexible light delivery, single fibers, fiber bundles, and liquid light guides. And select from our lens and mirror-based sample compartments.All of these accessories are compatible with our various optical components. Our optical accessories allow us ...show more -
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Electrostatic Fieldmeter
STME-EFM
Statclean Technology (S) Pte Ltd
This meter is designed to locate and measure static charge potentials on product, people, equipment and packaging.This instrument uses a non-contacting, chopper stabilized field sensor and a ranging mechanism to ensure correct measurements of electrostatic fields in all areas.
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Hall Effect Sensor Elements/ICs
ChenYang Technologies GmbH & Co. KG
is a sophisticated Hall Effect Gear Tooth IC featuring an on-chip 12-bit A/DConverter and logic that acts as a digital sample and hold circuit. A separate 6-bit D/A converterprovides a fixed hysteresis. The sensor does not have a chopper delay. It uses a single Hall platewhich is immune to rotary alignment problems.