Optically stimulated luminescence sample sampling device

Abstract

The invention discloses an optically stimulated luminescence sample sampling device which comprises a carrier, the carrier is in a rectangular frame shape, a sampling console is slidably mounted in the carrier, two hydraulic cylinders are symmetrically and fixedly mounted at the top of the sampling console, and the output ends of the hydraulic cylinders are fixedly connected with a mounting sealing plate; a drilling motor is fixedly mounted in the middle of the bottom face of the mounting sealing plate, a reinforcing connecting rod is fixedly connected to the output end of the drilling motor, and a drilling mechanism is fixedly connected to the bottom end of the reinforcing connecting rod. According to the optically stimulated luminescence sample sampling device, an alloy drill bit is used for drilling holes in the geology, sampling is prevented from being affected by hard soil, the sampling efficiency is improved, meanwhile, the outer drill pipe continues to move downwards, the inner sampling pipe is filled with sediments, the whole process is effectively prevented from being irradiated by sunlight, the sample is packaged with a black plastic bag after sampling is finished. Automatic drilling and sampling are achieved, the sampling difficulty is greatly reduced, the sampling precision is improved, and use is convenient.

Description

technical field [0001] The invention relates to the technical field of geological sampling, in particular to an optical luminescence sample sampling device. Background technique [0002] OSL dating technology is an important method to establish the chronological framework of Quaternary strata. It is widely used in Quaternary geology, hydrogeology, environmental geology and other geological disciplines, and even archaeology. With the continuous improvement of dating technology, Its application prospect is very broad. The principle of OSL dating is to excite the trap electrons in the energy gap of mineral quartz particles by laser, and measure the radiation dose released in the form of light (that is, the equivalent dose), and then analyze the trace radioactive element uranium in the sample , thorium, potassium content and the intensity of cosmic rays to obtain the dose rate, and finally restore the age of sediment burial through the ratio of equivalent dose to dose rate. ...

AI Technical Summary

Problems solved by technology

However, the disadvantages of this method of collecting samples are: first, when encountering hard sediments, it is easy to deform the steel pipe only by manual hammering, causing serious damage to the light protection of the sample; second, manual sampling It is more laborious, the sampling efficiency is poor, and it is impossible to get enough sediment samples that meet the requirements, thus affecting the later test accuracy

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