Have you seen a handheld laser rangefinder?


After making up my mind to buy a golf rangefinder, whether it is for a veteran who wants to improve his skills or to help learn to play, it is a very painful thing, because I don't know how to buy it?

The accuracy of laser rangefinders mainly depends on the calculation accuracy of the time between laser emission and reception by the instrument. According to the technology and applications used, laser rangefinders can be divided into conventional laser rangefinders with an accuracy of about 1 meter ( Mainly used in outdoor sports, hunting, etc.) and used in surveying and mapping, land surveying, construction, engineering applications, military and other high-precision laser rangefinders that require high accuracy.

Rangefinder outdoor

The phase method rangefinder is a rangefinder that modulates the phase of the laser, and obtains the distance by measuring the phase difference of the reflected laser light. Due to the need to detect the phase of the reflected laser, the received signal must have a strong intensity. Considering the safety of the human eye, the telephoto system like a pulsed laser rangefinder cannot be used, and the range is small , The typical range of distance measurement is 0.5mm to 150 meters. The general phase method laser rangefinder uses 635nm (visual red) laser as the debugging object, and is also commonly known as infrared rangefinder, but in fact, the definition of laser is not based on The color is defined, and if the 635-nanometer laser rangefinder is directly irradiated to the human eye, it will cause irreversible damage. Please use and protect it correctly.

Because the speed of ultrasonic propagation in the air is greatly affected by temperature, humidity, air pressure, etc., the measurement error is large, and the longer the ultrasonic wave length leads to a shorter propagation distance, so the general ultrasonic rangefinder has a shorter measurement distance , The measurement accuracy is relatively low. However, using the characteristics of fan propagation of ultrasonic waves, its detection range is larger than that of photoelectric rangefinders. It is widely used in safety protection, cable height measurement, obstacle detection and other fields in practical engineering.

Laser rangefinders have been widely used in the following fields: electric power, water conservancy, communications, environment, construction, geology, police, fire protection, blasting, navigation, aviation, railways, anti-terrorism/military, agriculture, forestry, real estate, leisure/outdoor Sports etc.

Wide range of applications

With slope compensation but no slope compensation switch button: It is only used for daily training, but it can accurately measure the distance regardless of whether it is a horizontal plane or a slope or an oblique angle. Although this type of rangefinder is only suitable for daily training, not all golfers are professional players. Daily improvement of technology and high frequency of use are sufficient to use this type of rangefinder. Therefore, the price is relatively cheap and moderate, because the demand is large, so there are more on the market.

In fact, this kind of purchase is a misunderstanding. The rangefinder cannot meet the conditions that fully meet the parameters. There are many interference factors, such as harsh environment, complex terrain, and actual measurement targets. When purchasing, if the user wants to measure the effect of 600 meters, do not choose the rangefinder with the parameter of 600, because this may not reach the data you want to measure.

Nowadays, the price of laser rangefinders is extremely unstable in the market, so many users think that high-priced products are good when they buy, regardless of their performance and applicability. They often start to complain when they use it, and then have to spend money on other styles.

So everyone should remember when buying a rangefinder: price is not the point, the point is the product itself. Observe the product functions clearly, choose according to your own habits and needs, and seek professional guidance if necessary.

1. If the air is foggy or heavy, it will hinder the return of light waves and affect the measurement distance. Therefore, the better the air quality, the better the measurement effect.

2. The influence of strong light on the measurement. The rangefinder designed using the principle of pulsed laser must use the 905 wavelength. This wavelength coincides with the 905 waveband in the sun's rays. If the sun is strong and dazzling, it will Return light

Waves cause interference and also reduce the range of the machine.