Matavimas Principai ir Metodai Iš Lazeris Atstumas Matavimas Prietaisai
1. Kas yra principas of atstumas matavimas naudojimas infraraudonųjų spindulių arba lazeris?
The principle of distance measurement baseically boils down to measurement the time it takes for light to travel to target, and then calculating the distance D from the speed of light c=299792458m/s and the atmospheric refraction coefficient n. Since it is difficult to measure the time directly, it is common to measure the phase of a continuous wave, known as a phasor rangefinder. Of kursas, ten yra taip pat impulsiniai nuotolio ieškikliai, paprastai WILD's DI-3000.
Tai yra svarbu pažymėti kad fazorimetrija daro ne matuoja the phase of the infrared or laser, but rather the phase of the signal modulated on top of the infrared or laser. The construction industry has a handheld laser rangefinder for house measurements, which works on the same principle.
2. Ar the plane of the object to be measured have to be perpendicular to the light?
Paprastai tikslumas diapazonas poreikiai to būti visiškai atspindintis prizmės su the housing measurement with the rangefinder, directly to the smooth wall reflection measurement, most because the distance is reliatively close, the light reflected back to the signal strength is large enough. With this can be known, must be vertical, otherwise the return signal is too weak will not be able to get the accurate distance.
3. Jei išmatuotas objektas plokštuma for the diffuse reflection is possible?
Paprastai gali būti, the actual project will use a thin plastic plate as a reflective surface to solve the serious problem of diffuse reflection.
4. Ultrasonic distance measurement accuracy is relatively low, and is rarely used nowadays.
Matavimas principas ir metodas
Su the development of science and technology, it seems that most people still do not know that there is a laser rangefinder, do not understand the laser rangefinder. Even some workers are still using a tape measure to measure the distance, using a pen to calculate the area 'volume and so on. Below I introduce the principle and use of laser rangefinders, which allow workers to work and study with high efektyvumas ir tikslumas.
Lazeris nuotolio ieškiklis is the use of laser on the target distance to accurately determine the instrument. Laser rangefinder in the work of the target to shoot a very thin beam of laser light, by the photoelectric components to receive the target reflected laser beam, the timer to determine the laser beam from the launch to receive the time to calculate the distance from the observer to the target.
If the laser is emitted continuously, the range can be up to about 40 kilometrų ir can be operated day and night. If the laser is emitted in pulses, the accuracy is generally** low, but a good relative accuracy can be reach for long-distance measurements.
