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  2. Nanobubble - Wikipedia

    en.wikipedia.org/wiki/Nanobubble

    Nanobubbles are nanoscopic and generally too small to be observed using the naked eye or a standard microscope, but can be observed using backscattering of light using tools such as green laser pointers. [12] Stable nanobubbles in bulk about 30-400 nanometers in diameter were first reported in the British scientific journal Nature in 1982. [12]

  3. Wiggler (tool) - Wikipedia

    en.wikipedia.org/wiki/Wiggler_(tool)

    Edge finder. An edge finder is a rotating tool, meaning the machine spindle must be turning for the tool to work. On one end of a cylindrical shank, a second cylinder is attached by a spring running through the center of both cylinders. The second cylinder rotates with the first.

  4. PLZ-05 - Wikipedia

    en.wikipedia.org/wiki/PLZ-05

    The PLZ-05 is fitted with a digital fire control system, ballistic computers, a gunner day/night thermal imaging system, a laser range finder, and a commander-independent thermal viewer. In addition to indirect fire support, the main gun can be used as an anti-tank cannon or anti-fortification assault gun in an emergency.

  5. Laser rangefinder - Wikipedia

    en.wikipedia.org/wiki/Laser_rangefinder

    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 ...

  6. Stadiametric rangefinding - Wikipedia

    en.wikipedia.org/wiki/Stadiametric_rangefinding

    The approximate range of an object one foot (30.48 cm) in height covering roughly 100 milliradians is 10 feet (3.048 m) or: Range (r) = approximate height of object (h) × (1000 ÷ aperture in milliradians (a)) r = h(1000/a) → where r and h are identical units, and a is in milliradians.

  7. Coincidence rangefinder - Wikipedia

    en.wikipedia.org/wiki/Coincidence_rangefinder

    Eyepiece image of a naval rangefinder, showing the displaced image when not yet adjusted for range. The coincidence rangefinder uses a single eyepiece. Light from the target enters the rangefinder through two windows located at either end of the instrument. At either side the incident beam is reflected to the center of the optical bar by a ...

  8. Rangefinder - Wikipedia

    en.wikipedia.org/wiki/Rangefinder

    A long-range laser rangefinder is capable of measuring distance up to 20 km; mounted on a tripod with an angular mount. The resulting system also provides azimuth and elevation measurements. A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object.

  9. Height finder - Wikipedia

    en.wikipedia.org/wiki/Height_finder

    A height finder radar is a type of 2-dimensional radar that measures altitude of a target. The operator slews the antenna toward a desired bearing , identifies a target echo at a desired range on the range height indicator display, then bisects the target with a cursor that is scaled to indicate the approximate altitude of the target. [ 7 ]

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