Practical metrology

TABLE OF CONTENTS:

I. APPARATUS
II. METHODS
Experiments
1. TO MEASURE A DOUBLE-ENDED PLAIN PLUG GAUGE
2. TO MEASURE A GAP GAUGE WITH SLIP GAUGES
3. TO MEASURE THE HEIGHT OF A CIRCULAR SPIGOT
4. TO MEASURE A FLUSH-PIN DEPTH GAUGE
5. TO CALIBRATE A MICROMETER
6. TO MEASURE A PLAIN RING GAUGE
7. TO MEASURE A TAPER PLUG GAUGE
8. TO MEASURE A TAPER RING GAUGE (LARGE DIAMETER) .
9. TO MEASURE A TAPER RING GAUGE WITH BALLS AND DEPTH GAUGE
10. TO MEASURE A PLUG SCREW GAUGE
11. TO CHECK A STRAIGHT EDGE
12. To CHECK AN ENGlNE;;tS SQUARE
13. To MEASURE A PLUG GAUdE ON A COMPARATOR
14. To MEASURE THE ANGLE OF A TAPER PLUG GAUGE WITH A SINE BAR
15. To CHECK A FORM GAUGE BY PROJECTION, INCLUDING THE CONSTRUCTION OF THE PROJECTION DRAWING
16. To MEASURE THE RADIUS AND ACCURACY OF A PLATE GAUGE OF LARGE RADIUS
17. To CHECK A SINE BAR
18. THE MEASUREMENT OF A SPUR GEAR TO DETERMINE ITS BASE CIRCLE DIAMETER AND TOOTH THICKNESS AT A GIVEN PITCH CIRCLE DIAMETER
19. To MEASURE THE SIMPLE EFFECTIVE DIAMETER OF A PLUG SCREW GAUGE USING A FLOATING MICROMETER
MEASURING MACHINE
20. To MEASURE THE PITCH ERROR OF A SCREW GAUGE (PLUG OR RING)
21. To MEASURE THE FORM AND ANGLE OF A PLUG SCREW GAUGE BY OPTICAL METHODS
22. To MEASURE THE MINOR DIAMETER OF A PLUG SCREW GAUGE USING A FLOATING MICROMETER MEASURING
MACHINE
23. To MEASURE THE MAJOR, MINOR AND EFFECTIVE DIAMETERS OF A RING SCREW GAUGE OPTICALLY BY MEANS
OF A CAST
24. To TAKE A CAST OF A SMALL RING SCREW GAUGE OR SIMILAR SHAPE
25. To MEASURE THE EFFECTIVE DIAMETER OF A RING SCREW GAUGE USING A HORIZONTAL COMPARATOR OR
MEASURING MACHINE
26. To SET AND CALIBRATE AN ENGINEER'S BLOCK LEVEL
27. To COMPARE THE LENGTHS OF Two END GAUGES ON AN N.P.L. TYPE LEVEL COMPARATOR
28. To MEASURE THE INCLUDED ANGLE OF A TAPER PLUG GAUGE USING AN AUTO-COLLIMATOR
29. To TEST A STRAIGHTEDGE USING AN AUTO-COLLIMATOR
30. To CALIBRATE A DIAL GAUGE
31. To MEASURE AN ANGULAR PLATE GAUGE USING AN OPTICAL DIVIDING HEAD
32. To CALIBRATE A DIVIDING HEAD OR TABLE USING ANGLE GAUGES AND AN AUTO-COLLIMATOR
33. To CALIBRATE A DIVIDED CIRCLE USING Two MICROSCOPES
34. To COMPARE Two SLIP GAUGES USING AN OPTICAL FLAT
35. To TEST THE FLATNESS OF A SURFACE PLATE USING A BLOCK LEVEL.
36. To CHECK THE INVOLUTE PROFILE OF A SPUR GEAR USING A DIVIDING HEAD
37. To CALIBRATE A PRECISION POLYGON (FIRST METHOD)
38. To CALIBRATE A PRECISION POLYGON (SECOND METHOD)
39. To CALIBRATE A PRECISION POLYGON (THIRD ME~HOD) .
40. To INVESTIGATE THE MEASUREMENT OF LOBED CYLINDERS
41. TESTS ON A VERTICAL COMPARATOR
42. TESTS ON A SCREW DIAMETER MEASURING MACHINE
43. To MEASURE SLIP GAUGES ON AN N.P.L. TYPE GAUGE INTERFEROMETER.