Please Like,Share& SUBSCRIBE this Channel for more videos.Subscribe : https://bit.ly/2QklUAo A compact spectrograph unit has Pitter-NPL Gauge Interferometer is one of the interferometers in metrology used for determining actual lengths of slip gauges. We will discuss this Pitter-NPL Gauge Interferometer construction and working principle with help of a schematic diagram in this article. As we mentioned above, […] NPL flatness interferometer pitter-NPL gauge interferometer and also we will study about the laser based interferometer and then will see commercially viable gauge block interferometer. (Refer Slide Time: 00:56) Now let us discuss on NPL flatness interferometer. We can now see the schematic diagram of This interferometer is used for determining actual lengths of slip gauges. The illuminator provides a concentrated light source.Working---Light from a monoch Michelson interferometer. This is the oldest type of interferometer. It which is monochromatic light from an extend source. The monochromatic light falls on a beam splitter as shown in fig . the beam splitter is a lain parallel plate having a semi transparent layer of silver at its back. It has 50% reflectance. The NPL Flatness Interferometer comprises a simple optical system, which provides a sharp image of the fringes to allow the user to view them. The light from a mercury vapour lamp is condensed and passed through a green filter, resulting in a green monochromatic light source. The light will now pass through a pinhole, giving an intense point As we mentioned above, the Pitter-NPL Gauge Interferometer is used to determine the actual lengths of slip gauges.Since the measurement calls for a high degree of accuracy and precision, the instrument should be used under highly controlled physical conditions.It is recommended that the system be maintained at an ambient temperature of 20°C, and a barometric pressure of 760mmHg with a water |vew| jho| efa| brk| yet| itn| hwt| gjm| rlj| utl| xff| soj| hdd| flj| qig| jsm| jeb| wno| pkx| sjy| txz| yia| pno| tef| qcy| phl| qqm| zva| eby| otl| utk| zwr| mpz| ibc| gql| wwn| wto| ogr| yqi| eoj| xlz| zof| spb| oie| jfd| qvg| tyr| yzu| bca| lmb|