Double-filter-wheel differential motion switching device with flexible accurate positioning system

Abstract

The invention discloses a double-filter-wheel differential motion switching device with a flexible accurate positioning system. A dynamical system drives filter wheels to work through a motor. The device is characterized in that a driving mode among the dynamical system and the filter wheels includes that the filter wheel I and the filter wheel II are mounted on a base and a supporting seat, the filter wheel I is mounted on a rotating shaft I through a forward unidirectional bearing, the filter wheel II is mounted on a rotating shaft II through a reverse-rotation unidirectional bearing, the rotating shaft I is connected with the rotating shaft II through a coupler, a synchronous pulley II is coaxially fixed on the rotating shaft I and in flexible transmission connection with a synchronouspulley I through a synchronous belt, and the synchronous pulley I is driven by the motor. A light filter II can rotate forwards, the filter wheel I does not move, or the filter wheel I can reversely rotate, and the filter wheel II does not move. The switching device is high in transmission accuracy, the filter wheels are conveniently and rapidly disassembled, damage risks are omitted, a flexible positioning ring with a certain pre-tightening force is matched with a Geneva mechanism, and the device is stable to rotate and high in positioning accuracy.

Description

technical field [0001] The invention relates to an automatic switching mechanism. It involves technical fields such as astronomical spectrometers, element detection, environmental detection, and biomedicine, especially a dual-filter wheel differential switching device with a flexible and precise positioning system, and more specifically a device for different bands of astronomical telescope spectrometers. The optical filter automatic switching mechanism and the filter wheel switching device of the element content detection device. Background technique [0002] Astronomical telescope spectrometers, as astronomical telescope terminal equipment, are used to process starlight to obtain starlight spectra, and should be extremely extensive in the field of astronomy. A spectrometer is a device that uses a CCD as a photodetector to measure the intensity of spectral lines at different wavelengths. Its structure consists of an incident slit, a dispersion system, an imaging system an...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing technology cannot configure 8-10 or more position filter wheel switching functions in a narrow space, the present invention provides a dual filter wheel differential switching device with a flexible and precise positioning system. The switching device drives High precision, can eliminate the gap problem of traditional gear transmission mechanism, not only can accurately locate the position of the filter wheel, but also ensure the stability of the position of the filter wheel

When the motor rotates in different directions through two one-way bearings, it drives different filter wheels to rotate and switch filters

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