Operating principle
The device works by measuring the time it takes for the laser beam to reach an object and then return back to the device.
The principle of operation can be described as follows:
- Laser beam emission: When the button is pressed, the device emits a narrow laser beam that is directed at the object being measured.
- Beam reflection: the laser beam, having reached the surface of the object, is reflected and returns back to the device.
- Time measurement: The time it takes for the beam to reach the object and return is recorded by the instrument.
- Distance calculation: Based on the speed of light and the measured time, the device calculates the distance to the object. The formula for this calculation is simple: d=c⋅t2d=2c⋅t, where dd is the distance, cc is the speed of light, tt is the time.
Why is it necessary to verify and calibrate the device?
Main reasons:
Measurement accuracy: Calibration ensures that measurements remain accurate and match the device's stated specifications.
Stability of operation: regular checks and adjustments to the device help to maintain it in working order and extend its service life.
Standards compliance: Some areas require accurate data that meets standards, regulations, and calibration helps meet these requirements.
Preventing errors: Inaccurate measurements will lead to errors in work, which is especially critical in construction, architecture, engineering.
Confidence in the results: a configured tool gives confidence in the correctness of the data obtained, which is important for making decisions based on this data.
Advantages
- Laser tape measures provide high accuracy, achieving an error of several millimeters. This is necessary in professional areas such as construction, architecture, where precise dimensions are necessary for design, execution of works.
- They can measure distances of up to several hundred meters, making them ideal for use on larger objects. This makes the work much easier compared to traditional tape measures, where the range is limited by the physical length of the tape.
- Provide results instantly, which saves time and simplifies work processes. The user only needs to point the device at the target, press the button to get the exact distance.
- Most models measure not only distances, but also calculate areas, volumes, as well as heights and angles of inclination. This reduces the number of tools and increases work efficiency.
- Using a laser tape measure eliminates the need for physical measurements with movement around the object, which is especially important when working at height or in hard-to-reach places. This reduces the risk of injury and ensures worker safety. Some rangefinders measure distances through glass or other transparent materials.
- Some models are designed to work in harsh conditions and can withstand falls and impacts.
- Many rangefinders have IP protection, which makes them resistant to dust and splashes of water, which is important for work on construction sites.