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Optical Chopper Print

Model No: HO-ID-02

Holmarc's optical chopper is a highly stable device throughout the frequency range. The basic system consists of a control unit, a rotating head and a set of four chopper discs. DC motor drives the rotating head in closed loop control. Chopping discs are replaceable at user end with ease. A heavy base to which the rotating assembly is fixed provides stability during operation.

Optical axis height is approximately 100 mm. The required disc depending on the frequency can be fixed to the rotating head. This system can provide wide range of frequencies (10Hz - 3.7kHz.) A wide selection of additional discs and accessories are available to extend the frequency range and to satisfy individual requirements. Frequency is displayed directly on the digital display of the control unit. The easy-to-interchange blades are made of corrosion protected material for durability.

An optical chopper is a mechanical device which physically chops a light beam into discrete light pulses. It is widely used in various optical experiments. It modulates different light sources with given frequency for their subsequent analysis. The chopping discs come in a variety of slot apertures and can be replaced with ease.

    ► Frequency
             Two slot : 10Hz to 200 Hz
             Six slot : 200Hz to 1000 Hz
             Thirty slot : 1000Hz to 4000 Hz
    ► Chopper wheel diameter : 105 mm
    ► Frequency read out : 16 x 2 line LCD
    ► Reference pick-up : IR LED and photo transistor pair
    ► Motor cable length : 2 m
    ► Operating temperature : 10-50°C
    ► Power input : 230V, 50Hz
The device can be customized as per requirements. Custom blades can also be manufactured.
We welcome queries for customization.
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