Multifunctional gravel measuring instrument

Abstract

The invention provides a multifunctional gravel measuring instrument. The multifunctional gravel measuring instrument is composed of a measuring main board, a reference board and a pointer; the measuring main board is hinged to one side edge of the reference board; the measuring main board, the reference board and the pointer are all transparent boards; the bottom edge of the measuring main board is provide with length scales A; the middle part of the measuring main board is provide with semi-circular angle scales; the angle scales and the length scales A form a measuring area; more than 1 dividing line with different radiuses is arranged in the measuring area; the dividing lines are semi-circular and share the same center with the angle scales; the pointer is provided with length scales B; the zero scale of the length scales B is overlapped with the center of the angle scales; the length of the length scales B is not smaller than the radius of a semi-circle where the angle scales are located; the reference board is provided with an accommodating groove which is shaped to match the pointer; and the accommodating groove and the pointer are symmetrically distributed along the hinging sides of the measuring main board and the reference board. The multifunctional gravel measuring instrument is foldable. With the multifunctional gravel measuring instrument adopted, dip angle measurement and grain size measurement can be performed on gravels in a three-dimensional rock core simultaneously, and the types of the gravels can be also determined.

Description

technical field [0001] The invention relates to a gravel measuring instrument, which belongs to the technical field of geological survey measuring instruments. Background technique [0002] During core observation, geologists need to measure the inclination angle of the gravel in the core with a protractor, that is, to measure the angle between the long axis of the gravel and the cross section of the core to study its orientation, and to use a ruler to measure the size of the long axis of the gravel to determine the type of gravel (According to the size of the long axis of the gravel, the gravel is divided into fine gravel 2-8mm, small and medium gravel 8-16mm, large and medium gravel 16-32mm, and coarse gravel>32mm). [0003] At present, geological research tends to be more and more quantitative. In the existing technology, no previous quantitative research on the orientation of core gravel has been found. The corresponding gravel inclination protractor is also a blank. ...

AI Technical Summary

Problems solved by technology

[0003] At present, geological research tends to be more and more quantitative. In the existing technology, no previous quantitative research on the orientation of core gravel has been found. The corresponding gravel inclination protractor is also a blank. Quantitative research can only be done with the help of ruler and protractor. The current measurement work has the following problems in actual operation: ① It is difficult to observe with the naked eye and swing the protractor manually so that the zero scale line is consistent with the core cross section and Keep the measuring surface parallel. For ordinary protractors, there is still such a problem. Due to the scale line of the protractor, the inclination angle of larger gravels is easier to measure, while the inclination angle of smaller gravels is difficult to measure, or even impossible to measure; ② Carrying The use of protractors and straightedges and constantly changing tools to measure gravel has brought great inconvenience to workers, which is not conducive to efficient core and gravel measurement, and the accuracy and measurement speed are also difficult to meet the needs of geologists

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