Fundamentals of Dimensional Metrology, Μέρος 1Delmar Publishers, 1964 - 428 σελίδες |
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Σελίδα 123
... micrometer calipers . Some notes will ac- quaint you with a few of the more familiar types that you might encounter . In Fig . 7-38 is a micrometer whose anvils are interchangeable to cover a range of sizes . This is not as reliable as ...
... micrometer calipers . Some notes will ac- quaint you with a few of the more familiar types that you might encounter . In Fig . 7-38 is a micrometer whose anvils are interchangeable to cover a range of sizes . This is not as reliable as ...
Σελίδα 126
... MICROMETER DO'S AND DON'TS Support the instrument. Rods : 6 to 7 inch 5 to 6 inch 4 to 5 inch 2 to 3inch rod 3 to 4 inch Micrometer Handle Micrometer Head the previous instruments ( except the combin- ation set ) , inside micrometers are ...
... MICROMETER DO'S AND DON'TS Support the instrument. Rods : 6 to 7 inch 5 to 6 inch 4 to 5 inch 2 to 3inch rod 3 to 4 inch Micrometer Handle Micrometer Head the previous instruments ( except the combin- ation set ) , inside micrometers are ...
Σελίδα 136
... micrometer is limited by its screw travel . That is the reason the linearity is constant and not stated as so much per inch as it was for previous instruments . QUESTIONS 1. What is the main advantage the micrometer has over the ...
... micrometer is limited by its screw travel . That is the reason the linearity is constant and not stated as so much per inch as it was for previous instruments . QUESTIONS 1. What is the main advantage the micrometer has over the ...
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accuracy adjustment alignment anvil axis bands basic calibration chapter clamp combination combination square comparison cylinders decimal decimal-inch depth gage dial indicator diameter difference dimension discrimination discussed division edge electronic eliminate end standards error example fringe gage blocks gage head gaging element gear graduations height gage high amplification hole important inch index head index plate inside micrometer inspection instru length line of measurement linear machine manufacturers means meas measured point measurement instruments mechanical ment meter method metric system metrology micrometer mike millionths minus optical flats parallel pneumatic comparator practical precision protractor range ratchet stop reading reference plane reference point reference surface rotation screw sensitivity setup shown in Fig shows sine bar spindle square steel rule steps strument surface finish surface plate tenth mil thimble tion tolerance urement variables vernier caliper vernier instruments vernier scale wave wear wringing zero setting