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Measurement.

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Presentation on theme: "Measurement."— Presentation transcript:

1 Measurement

2 MEASURING TOOLS RULER DIAL CALIPER VERNIER CALIPER OUTSIDE MICROMETER
DEPTH MICROMETER INSIDE MICROMETER INDIRECT MEASUREMENT HEIGHT GUAGE INIDICATORS

3 Systems of Measurement
US Conventional System- inches, feet, yards Fractional Notation Decimal Notation Reading a Ruler (review page 70 Modern Metalworking) International System of Units (SI)- SI metric Millimeters/ Half millimeters Reading a Ruler (review page 71 Modern Metalworking)

4 Ruler Graduations Fractional Inch (1/8”-1/64”)
Decimal Inch (10th, 20th, 50th) Metric (millimeters and half millimeters)

5

6 Combination Square

7 Rulers

8 Dial Calipers Bezal Lock, Caliper Dial, Clamp Screw, Fixed Jaw, Scale Beam, Movable Jaw, Inside Nib.

9 The Dial Caliper

10 How to Read a Caliper

11 More accurate than dial calipers
Vernier Calipers More accurate than dial calipers

12 Vernier Measurement Review

13 Outside Micrometer

14 Reading a Micrometer

15 Depth Measurement Used to accurately measure the depth of a hole or bore.

16 Depth Measurement

17 Inside Micrometer Used to accurately measure bores or hole diameter

18 Inside Micrometer

19 Indirect Measurement

20 Height Gage Types Supported by Surface Plates and Machine Tables
Digital, Dial, or Vernier Supported by Surface Plates and Machine Tables

21 Indicators Used for “quick checking” parts and machine setups Types
Balanced- can be read in both directions from the “0” line Continuous- read clockwise from “0” line Digital

22 Using an Indicator

23 Test Your Knowledge What is the graduation of this ruler?
When is a magnifying glass needed? Why should you begin readings at the 1”? Identify the highlighted marks.

24

25

26 7. .217

27 8. .272

28


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