Laser Distance Meter

Trade your heavy tape measure for Fluke laser measuring tools, which let you simply take measurements with one hand. No matter your job, the laser distance meter will help you measure farther, with greater accuracy and in more situations, saving you time and money.

What is a laser measurement tool? Laser measurement tools, also known as laser distance meters or laser measuring tape, empower you to perform fast, high-precision measurements. A good laser measuring tape device is handheld, rugged, and easy-to-use, allow you to point and shoot. Laser measurement offers several advantages over traditional tape: safe measurement in hazardous places, the ability to reach high-up or far-off points, and a high degree of accuracy and straightness.

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A laser distance meter is a handheld device that allows you to perform quick, high-precision measurements with laser technology. Laser distance meters are accurate, easy-to-use, and simplify measurement in hard-to-reach and hazardous places. A laser measurer offers many advantages over traditional measuring tape, from safety to straightness and speed of measurement.

Laser measurement works by firing a focused beam of light to a target and measuring the reflection. A laser measurement tool will automatically calculate the time between the two events and converts into distance: Distance = .5 x (Time x Speed). Leading tools will also continue to adjust the distance value as you move closer to or farther away from a target.

Laser measurememt is highly accurate, with high-precision measurement tools providing accurate readings down to within +/- 1mm. When it comes to distance, high-quality devices can instantly measure up to 100m.

This laser distance meter measures up to 328 feet (100 meters) and features a multi-line LCD display and the ability to calculate area, volume and sum of lengths. The R8010 is capable of retaining maximum and minimum readings and up to 20 measurements in memory.

The Klein Tools NCVT-6 is a non-contact voltage tester (NCVT) with an integrated laser distance meter. It can detect voltage over the full-range from 12 to 1000 VAC and can measure distances from 2-Inch (51 mm) up to 66-Feet (20 m). The laser distance meter functions independently from the NCVT with a simple-to-use intuitive interface. Easy, single-button changes between voltage detection and laser distance measurements.

A few years ago, I borrowed a laser distance meter to measure my house for siding. Not needing to pull out a ladder to measure from the ground to the bottom of the soffits was indispensable. If I were to pull out ladders, measuring tapes and get help reading the distance, or give instructions to my non-technical family, the job would have taken considerably longer and would probably have resulted in an argument (only joking, Sweetheart). With a laser distance meter, I could do the job myself.

Designed for indoor and outdoor applications, and operates with the durability and quality you expect. With simple function buttons, three different measurement tasks can be completed quickly and easily. The extra bright laser is clearly visible, so you can always see your targeting point even if the target object is in a hard-to-reach spot, or at a long distance. It has a large 2-line illuminatedLCD screen and three-buttons for easy-to-use one-handed measurements.

The housing of the high-quality laser measurement tool is made of robust PC and ABS plastic. With an IP54 rating, it can be protected from water spray from any angle and from dust ingress to protect the product from operating normally.

Milwaukee's Laser Distance Meter is a heavy duty distance measuring tool for professional, commercial and industrial applications. The 2281-20 can easily measure distance up to 200' with 1/16" accuracy. The simple user interface makes Laser Distance Meter easy to use. The end bracket allows for accurate measuring from corners and edges. Easily add and subtract values and use five different functions to calculate length, area, volume, indirect measurements, and stake out equations. The 2281-20 includes meter case, two (2) AAA batteries, quick reference guide, manual and is covered by the Milwaukee 5-Year Warranty.

A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the target and returned to the sender. Due to the high speed of light, this technique is not appropriate for high precision sub-millimeter measurements, where triangulation and other techniques are often used. It is a type of scannerless lidar.

The precision of an instrument is correlated with the rise time,[1] divergence, and power of its laser pulse, as well as the quality of its optics and onboard digital signal processing. Environmental factors can significantly reduce range and accuracy:

Despite the beam being narrow, it will eventually spread over long distances due to the divergence of the laser beam, as well as due to scintillation and beam wander effects, caused by the presence of water droplets in the air acting as lenses ranging in size from microscopic to roughly half the height of the laser beam's path above the earth.

These atmospheric distortions coupled with the divergence of the laser itself and with transverse winds that serve to push the atmospheric heat bubbles laterally may combine to make it difficult to get an accurate reading of the distance of an object, say, beneath some trees or behind bushes, or even over long distances of more than 1 km in open and unobscured desert terrain.

Some of the laser light might reflect off leaves or branches which are closer than the object, giving an early return and a reading which is too low. Alternatively, over distances longer than 360 m, if the target is in proximity to the earth, it may simply vanish into a mirage, caused by temperature gradients in the air in proximity to the heated surface bending the laser light. All these effects must be considered.

Time of flight - this measures the time taken for a light pulse to travel to the target and back. With the speed of light known, and an accurate measurement of the time taken, the distance can be calculated. Many pulses are fired sequentially and the average response is most commonly used. This technique requires very accurate sub-nanosecond timing circuitry.

Light attenuation by atmospheric absorption - The method measures the attenuation of a laser beam caused by the absorption from an atmospheric compound (H2O, CO2, CH4, O2 etc.) to calculate the distance to an object. The light atmospheric absorption attenuation method requires unmodulated incoherent light sources and low-frequency electronics that reduce the complexity of the devices. Due to this, low-cost light sources can be used for range-finding. However, the application of the method is limited to atmospheric measurements or planetary exploration.[2]

Rangefinders provide an exact distance to targets located beyond the distance of point-blank shooting to snipers and artillery. They can also be used for military reconnaissance and engineering. Usually tanks use LRF to correct the direct shoot solution.

Handheld military rangefinders operate at ranges of 2 km up to 25 km and are combined with binoculars or monoculars. When the rangefinder is equipped with a digital magnetic compass (DMC) and inclinometer it is capable of providing magnetic azimuth, inclination, and height (length) of targets. Some rangefinders can also measure a target's speed in relation to the observer. Some rangefinders have cable or wireless interfaces to enable them to transfer their measurement(s) data to other equipment like fire control computers. Some models also offer the possibility to use add-on night vision modules. Most handheld rangefinders use standard or rechargeable batteries.

The more powerful models of rangefinders measure distance up to 40 km and are normally installed either on a tripod or directly on a vehicle, ship, jet, helicopter or gun platform. In the latter case the rangefinder module is integrated with on-board thermal, night vision and daytime observation equipment. The most advanced military rangefinders can be integrated with computers.

To make laser rangefinders and laser-guided weapons less useful against military targets, various military arms may have developed laser-absorbing paint for their vehicles. Regardless, some objects don't reflect laser light very well and using a laser rangefinder on them is difficult.

The first commercial laser rangefinder was the Barr & Stroud LF1, developed in association with Hughes Aircraft, which became available in 1965. This was then followed by the Barr & Stroud LF2, which integrated the rangefinder into a tank sight, and this was used on the Chieftain tank in 1969, the first vehicle so-equipped with such a system. Both systems used ruby lasers.[4]

Laser rangefinders are used extensively in 3D object recognition, 3D object modelling, and a wide variety of computer vision-related fields. This technology constitutes the heart of the so-called time-of-flight 3D scanners. In contrast to the military instruments, laser rangefinders offer high-precision scanning abilities, with either single-face or 360-degree scanning modes.

A number of algorithms have been developed to merge the range data retrieved from multiple angles of a single object to produce complete 3D models with as little error as possible. One of the advantages offered by laser rangefinders over other methods of computer vision is in not needing to correlate features from two images in order to determine depth-information like stereoscopic methods do. 2351a5e196