The rangefinder is a high -precision measurement tool for measuring target distance. It has three types: laser rangefinder, ultrasonic ranging meter and infrared rangefinder.The most widely used rangefinder is the laser ranging meter.Lets take a look at the following.
Ranging instrument principle
Laser ranging instrument The optical ranging meter is a more common ranging meter. Among them, the handheld laser rangefinder is high, small, and small. It is particularly common and practical during home improvement.The principle of optical ranging meter is simply used by measuring the time of light round trip targets, and then combined with the light speed C = 299792458m/s and the atmospheric refractive coefficient n to calculate the distance D.The specific calculation method is as follows: If the time required to spread at the air in the air at speed C in the air at the air, the time required for the round trip between A and B is T., B Two Point distances; C — the speed of light spread in the atmosphere;Because the speed of light is fast, it is difficult to measure the time directly. It is usually a phase of continuous waves.In addition, there is a pulse rangefinder.The handheld ranging in the construction industry belongs to the rangefinder rangefinder.
How to use a ranginger
How to use the handheet test: Press the first red measuring key-laser; after aiming, press the red measurement key-return the result.Its that simple.Of course, there are functions such as area, volume, maximum/minimum value, angle, MeterBox Bluetooth transmission, cloud storage and other functions. If you look at the manual
What brand of ranging meter is good
Laser ranging meter, global accurate measurement experts, and many innovative laser rangers, have high cost performance in China and internationally.Some are the worlds lighter and fashionable, the highest level of global protection, Chinese and English voice reports, and the worlds first intelligent operating platform, leading the price of laser rangers to dive sharply, and is known as the industry disruptor.All products are implemented in three years and cost -rendering for life.
Speedometer price
Generally speaking, the price of different brands is different.Here are a brief introduction to the price of several rangingers.Hongcheng Technology 70-meter hand-holding laser rangefinder HT-370: The price is 259 yuan, the S260 meter home installation high-precision handheld laser ranging meter: price is 268 yuan.Boschs 40 -meter classic professional handheld multifunctional multifunctional infrared laser ranging meter: price is 588 yuan.

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