Installation debugging method of continuously variable slit mechanism

A technology of installation and debugging and slits, which is applied in the field of installation and debugging of continuously variable slit mechanisms, can solve the problems of high installation accuracy requirements and high cost of variable slit mechanisms, and achieve the effect of reducing manufacturing and installation costs.

Active Publication Date: 2012-08-08
BEIJING PURKINJE GENERAL INSTR
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Problems solved by technology

[0005] The present invention aims to solve the technical problem of high cost of variable slit mechanism caused by too high requirements on processing precision and installation precision of continuously variable slit mechanism in the prior art

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  • Installation debugging method of continuously variable slit mechanism
  • Installation debugging method of continuously variable slit mechanism
  • Installation debugging method of continuously variable slit mechanism

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Embodiment Construction

[0048] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments described here are for illustration only, and are not intended to limit the present invention.

[0049] Figure 1-Figure 5 What is shown is the continuously variable slit mechanism for which the applicant has applied for a utility model patent. The processing accuracy and installation accuracy of each part in the continuously variable slit mechanism can be at the ordinary precision level without requiring particularly high precision. Therefore, the manufacturing cost of the continuously variable slit mechanism is far lower than that of the continuously variable slit mechanism that requires relatively high precision. use Figure 1-Figure 5 In the continuously variable slit mechanism shown, after the error is eliminated by the method of the present invention, the detection accuracy can reach or even exceed t...

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Abstract

The invention provides an installation debugging method of a continuously variable slit mechanism, and the method comprises the following steps: respectively installing first and second left slit slices and first and second right slit slices on first and second slide rods and splicing into zero slit; installing two displacement measuring instruments for measuring the horizontal displacement distances a1 and a2 of the first and second slide rods; and computing a corrected value e' by utilizing the following formulas, wherein the formulas are utilized to compute that a stepper motor is controlled to head n steps and the error of the obtained slit Tr' can be controlled at + / - 0.002mm. The continuously variable slit mechanism with a common accuracy grade can reach high accuracy after using the method provided by the invention.

Description

technical field [0001] The invention relates to an installation and debugging method for a continuously variable slit mechanism used in a spectrometer. Background technique [0002] In spectroscopic instruments, in order to analyze and detect substances, it is necessary to expand the spectra of different wavelengths in space through a grating to form spectral bands, and then intercept monochromatic light in a certain wavelength range through slits. In this process, the parallelism and symmetry of the opening of the slit, the uniformity of opening and closing, the accuracy of the slit width and resolution and other indicators directly affect the spectral resolution and / or spatial resolution of the spectroscopic instrument, so the slit in It plays a very important role in spectroscopic instruments. At present, the commonly used slits are as follows: one is fixed-width slits, which are characterized by simple structure and low cost, but cannot meet the requirements of adjustab...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/01
CPCG01J1/0462G01J1/04G01J3/04
Inventor 张效军朱哲华崔维兵
Owner BEIJING PURKINJE GENERAL INSTR
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