Solar angle instrument and method for measuring height of sun by using same

Abstract

The invention relates to a solar angle instrument and a method for measuring the height of the sun by using the same, The solar angle instrument comprises a supporting body, a stand column, a guide rail, a pulley and a measuring structure. The solar altitude can be measured very quickly, and more time and labor are saved. The specific use method comprises the following steps: finding the approximate position of the sun, and putting the instrument on the ground by approximately facing the sun; after the device is stabilized, a cylinder is rotated carefully, so that a projection line of an edge of the cylinder is roughly overlapped with the calibrated line right below the projection line; and after overlapping, reading is directly carried out. According to the invention, the influence of uneven ground on reading can be overcome, the solar angle instrument can be used in rugged places in the field, and the zero graduation line is automatically adjusted by using gravity without manual adjustment.

Description

technical field [0001] The invention relates to a measuring instrument, in particular to a device structure and a measuring method for quickly and effectively measuring the height of the sun. Background technique [0002] Accurate and rapid measurement of the value of the sun's altitude angle is of great significance in actual production and life. [0003] There are mainly two traditional methods for measuring the sun's altitude angle as follows. [0004] The first method is to place a stick vertically on the ground, measure the length of the stick, and the length of the shadow of the stick at noon, and calculate the altitude angle of the sun. This method has the following disadvantages: first of all, the most fatal disadvantage - we cannot guarantee that the crust where the rod is located has no inclination angle, and even if there is an inclination angle, it is difficult for us to measure it, so this method may fundamentally be problematic. In addition, it is difficult ...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: first of all, the most fatal disadvantage - we cannot guarantee that the crust where the rod is located has no inclination angle, and even if there is an inclination angle, it is difficult for us to measure it, so this method may fundamentally be problematic

In addition, it is difficult to ensure that the stick is completely perpendicular to the ground, and this method is very cumbersome, there are errors in measuring the length of the stick and the shadow, and the calculation is very troublesome

[0005] The second method is to use an existing measuring instrument to measure, however, the existing measuring instrument is difficult to operate (including adjustment of the direction of the dial and reading)

For example, if the ground is uneven, even if the base is adjusted, the inclination angle of the base, the direction of the zero scale line and the dial will be changed in the process of letting the sunlight pass through the gap of the crosshairs and coincide with the indicator plate below. It is difficult to take into account both directions of the face

The scale pointer and the scale line are not completely close together, which increases the reading error and other problems

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