What is the usual roulette to explain to anyone not necessary. This tool is extremely simple and eat in almost every home. Everyone uses them if you need to measure some distance: Whether during the placement of furniture, or when planning a plot, or when breaking a bed in the country. What to say is the desired thing, but not always comfortable: one can not handle here, because it is necessary to keep from two sides. There is a lot of time, and the larger area, the more inaccuracies are allowed. Thanks to the ability to use the laser, a laser roulette appeared, which has many additional features.

Advantages over ordinary tape measure

Laser roulette can be of two types:

1. Used during the construction and repair works;
2. Those that use the hunters and fishermen.

We consider the first type of laser tape measures. Familiar to all roulette does not go in any comparison with the laser because it has a number of obvious advantages:

• the possibility to calculate the area;
• to transfer data to a computer;
• the possibility of measuring inaccessible objects;
• resistance to dust, shock, moisture, low temperatures.

The design of the rangefinder

The basis of the work of the laser roulette is infrared waves. Wave aimed at some object or obstacle allows you to get an instant result

The design is as follows:

• In the plastic roulette housing are: the "ON / OFF" button - turn on / off;
• monitor;
• emitter;
• reflector;
• processor (microscopic);
• tripod
• glasses (lenses with anti-recovery effect)
• software;
• waterpas.

In order for the rangeference to earn, you need 1.5 V batteries, AA type. This economical power source provides continuous operation for a sufficiently long period.

Types of laser rangels

Laser rangefinder on the principle of action can be 2 types:

• impulsive;
• phase.

Principle of Laser Roulette

Pulse frequet measurement method

Roulette Laser principle of operation, which is built on the basis of a pulsed laser and radiation detector, is called a pulsed rangefinder. This is the easiest view. Acts as follows:

• The time counter is launched;
• the time is measured for which the laser beam passes to the reflector and back. When the beam is returned, the counter is turned off;
• time that reflected on the display is divided into the speed of light;
• the distance to the object is determined.

By the same principle operates echo sounder.

Phase rangefinder

The principle of operation of the phase rangefinder is built on a sinusoidal law. The phases of the signal sent and reflected are compared. Their difference is the measured distance. These laser rangefinder roulette is very accurate.

Modes

• standard - used for conventional measurements;
• scanning - used if you need to get the result in several points;
• rain - used if measurements are produced in adverse weather conditions;
• mirror - if the object has a reflective property.

The rangefinder, as elsewhere called a laser roulette, measures any distances almost perfect. Poven this measurement tool horizontal and vertical, open and closed spaces. What, as not by this device, you can measure the depth of the well, mines, the length of the tunnel.

What features to choose?

First decide why the laser roulette is needed to you. It's one thing if you use it in your professional activities, and the other is to apply in everyday life.

What are the laser rangefinder professional

• Measure long distances: up to 0.2 km;
• calculate the volume and area using the indirect measurement function;
• due to the presence of memory, the data of dozens of measurements can save;
• perform actions to add and subtract;
• determine the position of inaccessible objects using the Pythagora theorem.

Exploited this tool in conditions of rather tough, therefore, the requirements for it are elevated and the price is suitable. The device that has a certificate is more expensive than one that is not included in the Gospect of Measurement Tools. Professional range finders with high reliability and accuracy include laser rangefinders, manufactured by the Swiss company Leica Geosystems. It:

Leica Disto A5:

• has a multi-position bracket that allows measurements where the starting point is the corners, beams, walls,
• if required, it can be installed on a tripod.
• It has a double optical sight.

Leica Disto A6:

• accurately measures both large and small distances: from 50 mm to 0.2 km
• memoration measurement ± 1.0 mm.

Leica Disto A8:

• does not perform simple control and measuring tasks;
• has a digital viewfinder and an electronic tilt angle sensor;
• compared to the previous two, has more functional features.

Roulette measuring laser household

From the household tape measure, no measurements are required at long distances. Multifunctionality is also not always the main requirement, since most functions you will not use, and therefore it makes no sense to pay for them. Relatively inexpensive, but high-quality models include laser roulettes produced in America - "Condtrol". If you take one of the models of this series: "CONDTROL-60", then in it, as in professional expensive models there are the following functions:

• determine the lengths in places difficult to access (Pythagore function);
• determine the smaller and long distances.
• The maximum distance to which the action of the laser beam is distributed is 0.06 km.

Leica Geosystems also produces models that can be used as domestic, though they are more expensive than American. Compared to the rest of the models of this company that professionals use, they are easier. For example: Leica Disto D2:

• its accuracy is less - ± 1.5 mm;
• the case is simpler;
• range - 60 m.

How to use laser tape measure

To work with such perfect device like a laser outlet, it is not difficult:

• choose a flat surface and set the device;
• actuates a measuring function;
• roulette itself is able to configure and direct the beam to the object, the distance to which is to be measured;
• the measurement data will immediately appear on the monitor.

It will be useful

• Laser tape measure - the device is not safe: you need to avoid the fall of the laser beam per person. The consequence can be a backbone burn of the eye;
• the laser beam is not visible during bright sunlight, so it is difficult to determine its direction;
• measurement will be inaccurate if you keep the rangefinder in your hands;
• when measuring large distances, a special plate is needed (reflector). So it is better to see the point from the beam sent.

Laser level with tape measure

This device is capable of performing three operations:

• to measure. For this, there is a roulette. This is a tape with a breakdown, but wider than in an ordinary, which means tougher;

• level function. For example: often when we see the walls of the apartment with plasterboard, a clear long line is required on the same level. It is ideal for a laser level with a tape measure.

• if you remove the lens, then the device can be used as a pointer.

Level laser with a tape measure is not too great cost, so it makes sense to have it in their arsenal. For example: it is very convenient to use in the repair of a prism layer with IN-001 tape. Its feature is that the projected beam using a prism may repeat the bends in the form of angles. Produce this device in China. It has the following specifications:

• power beam at the output - 5mW;
• roulette length - 250 cm;
• liquid level is Level 3;
• shows deflection both horizontally and vertically;
• dimensions: 19,3h6,2h2,8 cm;
• weight - 0.22 kg;
• powered by AG13 batteries - 3 pcs.