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Laser Distance Meter

The Dhanbad Instruments laser distance meter is the ideal device to ascertain the measurements of distance without bulky reel-in tapes, or walking wheel distance measurement systems. The Dhanbad Instruments laser distance meter is made to the highest industry standards for resolution and durability. The laser distance meter is used for accurately determining the distance of an object or span without contact by way of a laser. The basic measuring principle is based on measuring the transit time of laser pulses between the laser distance meter and the object to be measured. Considering the speed of light, distances can be determined precisely with a laser distance meter.

Moreover allows this principle the determination of very large distances in the kilometre range. Additionally, the laser distance meter can accumulate independently to calculate surfaces and volumes. The laser distance meter is the ideal device for a civil engineer and any other large-scale operations in which distance measurement accuracy is paramount. The laser distance meter is frequently used in the industrial sector and especially in professions relating to construction, such as carpentry, masonry, electrical, landscapers, developers, locksmiths, etc.

This laser distance meter is attractive due to its ease of use and its high level of accuracy in the results recorded. A PCE laser distance meter is made of high-strength lightweight plastic and comes with a suitcase carrying case, depending on the model, it also may come with a Leica lens, the World leader in producing optical distance measuring meters. The laser distance meter can measure and store the readings in memory and determine the surface, the volume or height showing these on its display.

The laser distance meter is an instrument for testing distance in situations that no other measurement instrument can possibly do, for instance in a military operation where stealth is key, the laser distance meter can procure the distance from or to a target location silently and invisibly. We also offer a laser distance meter for fixed mounting for multiple applications in the industrial sector such as position testing, testing coil weight, etc. This laser distance meter transmits digital or analogue readings to a PC or a PLC-System for further analysis or as the basis for controlling commands.

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Laser Distance Meter
Laser Distance Measuring Device PCE-LSR-2

The bidirectional distance measuring device is a comprehensive measuring device. Compared to other distance measuring devices, this bidirectional distance measuring device has integrated two laser distance measuring systems.

  • Unidirectional measuring range: 0.16 ... 196.85 ft; 0.05 ... 60 m

  • Measuring range bidirectional: 0.16 ... 393.70 ft; 0.05 ... 120 m

  • Measuring accuracy: ± 2 mm

  • Resolution: 0.0394 inch; 0.001 m

  • Single measurement and continuous measurement

  • Rechargeable via micro USB connection

Order ID: PCE-LSR-2

Make: PCE Instruments

Laser Distance Meter PCE-LDM 80

Order ID: PCE-LDM 80

The laser distance metre has an impressive measuring range of 80 metres / 262.5 feet. The laser distance metre has many other measurement functions besides simple distance measurement or area and volume measurement. The built-in inclination sensor, for example, allows for both vertical and horizontal distance measurements.

  • Laser metre with a range of up to 80 metres / 262.5 feet 

  • Digital camera installed 

  • Laser metre with a range of up to 80 metres / 262.5 feet 

  • Digital camera installed 

  • Single measurement

  • Constant measurement

  • Area calculation 

  • Volume calculation 

  • Triangle calculation 

  • Pythagorean calculation 

  • Area calculation 

  • The horizontal measurement is automatic

  • Vertical measurement is automatic.

  • Lofting measurement 

  • Keystone measurement (measurement)

Make: PCE Instruments

Advice on how to buy a laser distance meter 

Most distance meters and rangefinders convert the distance they measure to meters, which is the international base unit. Anglo-Saxon units like the inch, foot, and yard are still used in Great Britain, the United States, and former British colonies. It's interesting that installers in the German-speaking world still use the word "Zoll." Below is a quick summary of the different ways that distance meters measure distance.

How far do distance measuring devices work to measure?

What you need to know about meters 

In a construction zone, a laser distance meter is used to measure something. 

The first important thing to look for in a rangefinder is its measuring range. This means that it should be able to measure distances from less than one millimetre, like when measuring coatings, to a few kilometres, like when measuring the distance to school. Another factor is how easy it is to get to the measuring section: -contact with the whole measuring section: measuring wheels device at the beginning of the section and visual contact with the end: laser or ultrasound -Being able to see where the section starts and ends; a laser with a calculation function; contact at the beginning and a metal surface at the end. Eddy current versus magnetic induction. By looking at the IP protection class, you can figure out if a current distance measuring device for use outside is safe from dust, water, and other things that might fall on it. When choosing a distance meter, you should also look at the information about how accurate it is and what conditions it needs to work in. Having a display with a high resolution is not the same as having a device that can measure distances with high accuracy. According to the Measuring and Verification Act 3 measuring device-specific definitions, para. 22. a) and b) and the Measuring and Verification Ordinance 1 application area for measuring devices and sub-devices, distance meters used in official traffic can only be used in a calibrated version. In particular, the measured values must be taken from calibrated distance meters if they are to be used in expert reports for the public prosecutor or in court or arbitration proceedings. Stationary distance meters for fixed installations work best for measuring things that are moving and can also be used for production control because they respond quickly and send the measurement value. For example, the level of fill, the thickness of the application, and the position of the components can all be measured and sent to the next step in the process.

Distance Meters with a Wheel for Measuring 

Distance meters with a measuring wheel can also be used on curved routes, such as when building roads or paths, finding and recording where a car braked during an accident investigation or measuring the length of school ways. A measuring wheel on a rod is used to measure the distance, and a counter wheel is used to count how many times the measuring wheel has turned. If the diameter of the measuring wheel is 1 meter, then 372 turns equal to 372 meters. The rotations of parts are also recorded and shown. But measuring wheels can be used not only to figure out how far something is in the field but also to figure out how long something is when it is being made. Depending on what is being measured, the impeller can have different surfaces (smooth, knurled, nubbed, corrugated, O-ring) and be made of different materials (aluminium, polyurethane, Hytrel [TPE], nitrile [NBR]).

Laser devices for measuring distance 
In a construction zone, a worker uses a Laser Distance Meter on an app. 

Using a laser diode, laser distance meters send a beam of light with a certain wavelength to the spot where the distance is being measured. There, the light is reflected, hits the receiver next to the laser diode, and is then measured.

Because of how they work, most laser rangefinders can only measure distances from about 5 cm away because of how they work. For the measurement, you only need a very small area to measure, and that area grows as you move farther away. The red-light spot makes it possible to control the goal point. Laser vision glasses and target plates can help you see this red-light spot from a long way away, especially when you're outside.

Many laser distance measuring devices can not only measure and save distances but also calculate areas and volumes from several measured values, such as sums or differences. The tilt measurement function is also very helpful because it lets you measure not only the roof pitches but also distances that are hard to figure out.

For use in industry, there are laser rangefinders with analogue, digital, or switching outputs that can be used to control transport or manufacturing processes.

Special laser rangefinders can take a lot of measurements in a short amount of time to figure out the change in distance and, by extension, the change in speed (e.g., laser guns for speed monitoring in road traffic).

Some surfaces, like those that are not straight on, can cause problems.


Then the following surfaces are suggested for target boards:

  • transparent surfaces (like glass or water)

  • reflective surfaces (like polished metal or glass)

  • porous surfaces (like insulation)

  • structured surfaces (e.g., rough plaster, natural stone)

  • Layers of air with different temperatures can also give a false reading

Most laser distance measuring devices use class 2 lasers, which can be used without extra safety precautions if you don't need to look inside for a long time or look at the laser radiation or the laser radiation reflected by a mirror over and over again.

Ultrasound is used to measure distance. 

Ultrasonic distance meters use the time it takes for sound to travel to and from an object to figure out how far away it is. The length of the path can then be worked out based on how fast the sound travels through the material. The sound of the impact can't be shown on the ultrasonic rangefinders. Because of this, some devices have an extra laser display that shows the target point but not where the sound is really coming from. Objects along the route or near the target point can cause the sound to be reflected, which can lead to wrong measurements. Also, the result can be faked for surfaces that are not directly targeted. Because of how sound travels, most measuring devices can only measure distances up to 20 meters. With an ultrasonic distance of a few meters, it's easy to find both solids and liquids. Sounds don't reflect well off of soft materials like felt, cotton wool, foam, or coarse-grained bulk goods because they "swallow" or scatter the sound. Due to heat convection in the air around the measuring surface, if the surface is very hot, it could cause the radiation to bend. Ultrasonic rangefinders, or distance meters, are used in a lot of distance warning tools for cars. Level monitoring is another thing that can be done with ultrasonic rangefinders. This measurement doesn't depend on the properties of the material, like how dense or wet it is. The most common way to use it is to measure from above and find out how far away something is from the surface. But there are also sensors that can measure how sound travels directly through a medium, like a single-walled container or a liquid. This lets measurements be made from below or on the side of the container. With special ultrasonic rangefinders, you can find out how thick the material is or how far away one surface is from another. To do this, you need to know how fast sound moves through the material and put the sensor right on the thing you want to measure.

With eddy current or magnetic induction, thin layers on metal bases can be used to measure distances. 

With the help of special sensors, the thickness of the layers on top of the metal can be measured. This is the distance from the surface of the coating to the surface of the base material. Here, two different ways of measuring are used:

Magnetic inductive distance measuring devices are used to measure chrome, zinc, copper, enamel, lacquer, and plastic layers on steel and iron that are not magnetic but are on top of a magnetizable bottom layer.

b) Eddy current distance measuring devices are used to measure electrically non-conductive layers on conductive non-ferromagnetic substrates such as aluminium, aluminium alloys, lead, bronze, copper, brass, zinc, and tin. Many measuring tools have both magnetic and non-magnetic sensors built-in or, if they have external sensors, have the option of connecting both magnetic and non-magnetic sensors (NFe). There are devices with sensors that can detect layers up to 60 mm thick, like building materials or insulation on a metal surface.

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