Auxiliary sighting device for handheld type X-ray spectrograph and implementation method
A technology of an aiming device and an implementation method, which is applied to measurement devices, instruments, scientific instruments, etc., can solve problems such as hidden safety hazards, the detection window is facing the sample to be detected, and the user cannot directly see the detection window of the instrument, so as to save time. , avoid air test, ensure the effect of safety
Inactive Publication Date: 2018-02-09
ZHEJIANG TAIKE SONGDE ENERGY TECH CO LTD
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[0002] For safety reasons, the detection window of the handheld X-ray spectrometer is located at the front of the instrument, and the user cannot directly see the detection window of the instrument during work
For small (or irregular in shape or detection of specific parts) tested samples, it is often impossible to align the detection window directly with the tested sample, which may affect the accuracy of the test results; if the detection window is completely misaligned with the tested sample Test samples and produce empty test, there will be greater safety hazards
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[0032] The present invention also provides a method for implementing the above-mentioned handheld X-ray spectrometer auxiliary aiming sample device, the method includes the following steps:
[0033] 1) Calculate the viewing angle of the camera:
[0034] θ=2·arctan(d / 2f) (1)
[0035] In the formula: θ is the angle of view of the camera; d is the sensor size, mm; f is the focal length, mm;
[0036] 2) Calculate the distance information between the detected sample and the camera:
[0037]
[0038] In the formula: l1 is the distance between the tested sample and the range finder, mm; l2 is the distance between the tested sample and the camera, mm; a is the distance between the range finder and the camera, mm;
[0039] 3) Establish an arc surface with the camera as the center and l2 as the radius, extract the intersection point of the collimator and the arc surface, connect the intersection point and the center of the circle, and record the angle between the connection line an...
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The invention discloses an auxiliary sighting device for a handheld type X-ray spectrograph and an implementation method. The device includes a diastimeter and a camera which are sequentially mountedbelow or above the head of the handheld type X-ray spectrograph. A window of the diastimeter, a window of the camera and a window of a collimator of the handheld type X-ray spectrograph are arranged on one straight line. The straight line and the plane where a detection window is located coincide, and the straight line is parallel to the horizontal plane. An upper computer receives distance information of the diastimeter, calculates the position of a point of intersection of the collimator and a detected sample according to the relative positions between the collimator and the camera and between the diastimeter and the camera respectively, and displays the position on a screen. The implementation method includes the steps of calculating the view angle of the camera, calculating distance information between an object and the camera, calculating the position of a position of intersection of the collimator and the spherical surface, calculating the position of the point of intersection onthe screen, and displaying the calculated position of the point of intersection on the screen. According to the auxiliary sighting device, a detection window of an auxiliary instrument aims at a detected sample in the instrument test process, and vain measurement is avoided.
Description
technical field [0001] The invention relates to a spectrometer auxiliary detection device, in particular to a hand-held X-ray spectrometer auxiliary aiming device and an implementation method. Background technique [0002] For safety reasons, the detection window of the handheld X-ray spectrometer is located at the front of the instrument, and the user cannot directly see the detection window of the instrument during work. For small (or irregular in shape or detection of specific parts) tested samples, it is often impossible to align the detection window directly with the tested sample, which may affect the accuracy of the test results; if the detection window is completely misaligned with the tested sample Testing samples and producing empty tests will pose a greater safety hazard. Contents of the invention [0003] Aiming at the deficiencies of the existing technology, the patent of the present invention proposes a hand-held X-ray spectrometer auxiliary aiming device an...
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IPC IPC(8): G01N23/00
Inventor 李宁李福生
Owner ZHEJIANG TAIKE SONGDE ENERGY TECH CO LTD