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  2. Ring gauge - Wikipedia

    en.wikipedia.org/wiki/Ring_gauge

    Master and setting ring gauges includes gauge blocks, master or setting discs, and setting rings are types of master gauges used to calibrate or set micrometers, optical comparators, or other gauging systems. Working gauges are used in the shop for dimensional inspection and periodically checked against a master gauge.

  3. Precision measurement equipment laboratory - Wikipedia

    en.wikipedia.org/wiki/Precision_Measurement...

    The technicians who work in the PMEL will often specialize in one of these sections. The K-Sections are derived from the primary function of the TMDE. This is based upon the calibration authority. Most labs have three calibration sections divided into K1/K8, K5/K6 and K3/K4 that specialize in like test equipment.

  4. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/wiki/1951_USAF_resolution_test...

    Glass chart. A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.

  5. Measurement microphone calibration - Wikipedia

    en.wikipedia.org/wiki/Measurement_microphone...

    Free field reciprocity calibration (to give the free-field response, as opposed to the pressure response of the microphone) follows the same principles and roughly the same method as pressure reciprocity calibration, but in practice is much more difficult to implement. As such it is more usual to perform reciprocity calibration in an acoustical ...

  6. Gauge block - Wikipedia

    en.wikipedia.org/wiki/Gauge_block

    A gauge block accessory set A holder that turns a stack of gauge blocks into an instant, custom caliper or go/no go gauge.. The pictured accessories provide a set of holders and tools to extend the usefulness of the gauge block set.

  7. Template:OSM Location map/doc - Wikipedia

    en.wikipedia.org/wiki/Template:OSM_Location_map/doc

    This template provides A map (from OpenStreetMap) in a frame, for any location, anywhere in the world, at scale from global to an individual building.; Optional multiple markers, text labels, numbered dots, live wikilinks and other graphical elements.

  8. Microchannel plate detector - Wikipedia

    en.wikipedia.org/wiki/Microchannel_plate_detector

    The microchannels are typically 5-20 micrometers in diameter, parallel to each other and enter the plate at a small angle to the surface (8-13° from normal). Plates are often round disks, but can be cut to any shape from sizes 10mm up to 200mm. They may also be curved.

  9. Snap gauge - Wikipedia

    en.wikipedia.org/wiki/Snap_gauge

    Snap go/no go gauge and indicator snap gauge. A snap gauge is a form of go/no go gauge.It is a limit gauge with permanently or temporarily fixed measurement aperture(s) (gaps) which is used to quickly verify whether an outside dimension of a part matches a preset dimension or falls within predefined tolerances.