Interferometry is nothing but optical interference to carry out precise measurements of very small linear dimensions. NPL Flatness Interferometer is developed by the National Physical Laboratory of the United Kingdom. We will discuss this NPL Flatness Interferometer construction and working principle with help of a schematic diagram. Construction of NPL Flatness Interferometer The NPL Flatness […]
What is Slip Gauges or Gauge Blocks?
Slip Gauges are known as Gauge Blocks. They are Precise Measuring instruments. These Slip Gauges are universally accepted end Standard of length. You know, Johanson first introduced the slip gauges, so they can be called as Johanson gauges as well. And he is a Sweedish Engineer. Construction of Slip Gauge / Gauge Blocks / Johanson gauges […]