Understand the application of handheld laser rangefinder in underground mining areas
As a type of rangefinder, handheld laser rangefinder has unique functions and characteristics compared to ordinary rangefinders. We promote and apply it and sell it to places where factories and mining enterprises particularly need it.
The application of handheld laser rangefinders in mines mainly utilizes a combination of handheld laser rangefinders and domestic theodolites to form a semi station without prism, which is used for measuring point positions, section heights, and volume in underground mining areas.
What was the original underground measurement method before a certain unit purchased a handheld rangefinder? Let's listen to the statement of the person in charge of the measurement unit: they used a theodolite, a leather ruler, a fishing rod, and a domestic pulse range finder to conduct underground mining site measurement. The main drawbacks of this method are:
1. Low measurement accuracy. There is a set of data to prove; At the end of 1998, two geological survey groups jointly measured the volume of a mining area, resulting in one group measuring 55000 cubic meters and the other group measuring 68000 cubic meters. Measure one measurement value at a time, but there is a significant difference between several measurements, and the result is that they dare not continue to measure.
2. Slow speed and low efficiency. The underground working environment cannot be compared to the ground environment at all. Due to limitations such as poor underground conditions, dim light, and low coefficient of measurement, the measurement speed is slow and the efficiency is also low. Often, a measurement point takes several times more than the usual measurement time.
3. Although domestic pulse handheld rangefinders can also measure distance, due to the use of ultrasonic rangefinders, people cannot see the position of the target point, and the measurement range is too short and the accuracy is low, greatly limiting its range of use.
So what about the changes after using a handheld laser rangefinder? Let's take a look:
In underground measurement, it is only necessary for the measuring personnel to install a theodolite and a distance measuring instrument, and the target point does not require a person to stand. The measurement task can be completed smoothly, safely, and accurately in a very short time, overcoming the shortcomings of slow speed, low efficiency, and poor accuracy in the past. Especially in underground measurement, the advantage of handheld laser distance measuring instruments that can see red laser points is particularly praised by the measuring personnel. In underground measurement, a handheld laser rangefinder can also be used separately, which is quite convenient and can store a large amount of measurement data without the need for underground measurement records.
In addition to being convenient for underground use, handheld laser rangefinders can also be used for outdoor slope measurement and lofting.
