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Gamma instrument automatic calibration device and method

An automatic calibration and gamma instrument technology, applied in the field of well logging, can solve the problems of bulky equipment, low ranging accuracy, low efficiency, etc., and achieve the effect of convenient automatic calibration, safety and accuracy assurance.

Pending Publication Date: 2017-11-17
核工业二三0研究所
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following defects, 1. The equipment is heavy and the operation is complicated
2. The ranging accuracy is not high and the efficiency is low. During the calibration process, it needs to run back and forth. It is necessary to move the standard source and pull the tape measure to measure the distance.
3. Since the staff need to be in close contact with the radioactive standard source for a long time, it is very harmful to the body

Method used

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  • Gamma instrument automatic calibration device and method
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  • Gamma instrument automatic calibration device and method

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Embodiment Construction

[0031] combine Figure 1-7 A gamma meter automatic calibration device shown includes two track support frames 30 and an instrument support frame 31, guide rails 32 are arranged between the two track support frames 30, and guide rails 32 are adapted to be used for hanging The sliding platform 33 of the standard source 34 can reciprocate back and forth along the guide rail 32 , and the guide rail 32 is used to guide the sliding platform 33 . The sliding platform 33 is used to hang the standard source 34, and the standard source 34 can be fixedly connected with the sliding platform 33 directly through a pull rod. For the convenience of hanging the standard source 34 and improving the versatility of the present invention, a better way is, as figure 2 As shown, the standard source suspension strut 42 perpendicular to the guide rail 32 is set on the sliding platform 33, the center of the standard source suspension strut 42 is connected with the upper surface of the sliding platfor...

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Abstract

The invention relates to the technical field of logging. The purpose of the invention is to provide a gamma instrument automatic calibration device and method with high degree of automation, high work efficiency, high accuracy and little harm to human bodies. The gamma instrument automatic calibration device comprises two rail support frames and an instrument support frame. A guide rail is arranged between the two rail support frames. A sliding platform used for suspending a standard source is arranged on the guide rail. Both ends of the guide rail are provided with a synchronous gear. The two synchronous gears are connected with the guide rail through bearings and are linked by a synchronous belt. The sliding platform is connected with the synchronous belt through a connecting clip. One of the synchronizing gears is driven by a drive mechanism. The gamma instrument automatic calibration device and method have advantages of high degree of automation, high working efficiency, high accuracy and little harm to the human bodies.

Description

technical field [0001] The invention relates to the technical field of well logging, in particular to an automatic calibration device and calibration method for a gamma meter. Background technique [0002] Gamma measuring instruments such as logging probes, directional radiometers, and loggers need to be calibrated frequently to ensure the accuracy of measurement data. Especially in the drilling and detection project of the uranium mine survey, it is necessary to estimate the uranium reserves. If the instrument is not accurate, the results will be missed or even false data will be provided to the country. In the prior art, the scheme for calibrating the measuring instrument is relatively simple, including two shelves, an iron wire is drawn between the two shelves, a radioactive standard source is hung on the iron wire, and then the measuring instrument is placed on an additional shelf. During this period, the standard source is manually moved to change the distance between ...

Claims

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Application Information

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IPC IPC(8): G01V13/00
CPCG01V13/00Y02E30/30
Inventor 董湘龙黄宏业李大雁陈峰
Owner 核工业二三0研究所
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