Mohammad Dedyardie Takong 08B0904

At the end of the lesson, you should be able to:  State the use of a micrometer screw gauge  Master the techniques in using a micrometer screw gauge  Read the readings on the micrometer screw gauge

 Use to measure a precise measurement of small distances.  Use to measure distance of thicknesses up to 0.01 mm.

List of parts of a Micrometer Screw Gauge Anvil Spindle SleeveThimble Ratchet Lock Frame

 In mechanical engineering & machining.  It is used anywhere when we needed to measure small distances.

 Measurement & Gaging.flv Measurement & Gaging.flv

Linear scale (1 mm interval) Lower linear scale (0.5 mm interval) Rotating scale (50 mm interval)

 Firstly, check for the zero error.

 Read the reading on the linear scale reading and add with coinciding circular scale multiply by least count. Reading = Linear scale reading + (Coinciding circular scale x Least count) = 2.5 mm + (46 x 0.01) = ( ) mm = 2.96 mm

 ometer.APPLET/ ometer.APPLET/

 F:\ICT Dedy\ASSESMENT\ASSESMENT (MULTIPLE CHOICE MICROMETER).ppt F:\ICT Dedy\ASSESMENT\ASSESMENT (MULTIPLE CHOICE MICROMETER).ppt