Diametres of various objects can be measured br using a micrometre screw gauge: Readings can be obseved by adapting following steps 1-Main scale reading;when one revolve the THIMBLE a scale appears with divisions 2-Circular scale reading;the digit apearing on circular scale conciding with the main scale. Main scale readind+(Circular scale reading into Least count) yields answer following link can be fruit ful for better techniques http://www.tutorvista.com/content/physics/physics-i/measurement-and-experimentation/screw-gauge.php Regards:MALLICK TAYYAB
A micrometer (or micrometer screw gauge) measures the volume of a screw.
The screw gauge is commonly called a micrometer screw gauge because it is a precise measuring instrument that utilizes a calibrated screw for accurately measuring small dimensions with high accuracy, typically up to 0.01 mm or even smaller. The term "micrometer" signifies its ability to measure very small distances, often in micrometers (1 micrometer = 0.001 mm).
The formula to calculate the least count of a micrometer is: Least count = Pitch of screw gauge / Number of divisions on circular scale
The spindle in a micrometer screw gauge is responsible for making contact with the object being measured and moving along the pitch scale to take measurements. It is rotated to bring the object into contact with the anvil, allowing for precise measurements of small objects with high accuracy.
A "screw pitch gauge" is used to measure screw pitch. Typically, the gauge has a number of indented templates for each standard pitch. Matching a particular template to the screw or nut gives the pitch. You can also use a measuring device (ruler, micrometer, etc.) to measure a group of threads and then "do the math" to estimate pitch. Accuracy depends on your ability to accurately measure length and count threads.
the inventor of micrometer screw gauge is William Gascoigne.
A micrometer screw gauge is used to measure small distances or thicknesses at a very high precision level. It typically measures in millimeters or micrometers.
Our laboratory screw gauge has a pitch of 1 millimeter.
The pitch of the precision ground spindle screw on a micrometer is typically 0.5mm.
A micrometer screw gauge is necessary for measuring expansion because it provides precise and accurate measurements to determine the small changes in length that occur due to expansion. The micrometer screw gauge has a fine scale and a thimble that allows for consistent and repeatable measurements, making it suitable for measuring small increments of expansion.
A micrometer screw gauge is used to measure small dimensions with high precision. It consists of a screw mechanism that moves a calibrated scale when measuring the dimensions of objects. It is commonly used in fields such as engineering, manufacturing, and science where accuracy is important.
The anvil on a micrometer screw gauge is used to support and hold one end of the object being measured. It helps to ensure that the object is positioned correctly for accurate measurements to be taken by the gauge.