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Aneroid Mercurial Barometer. Aneroid Barometer Considered to be the most accurate Barometer.

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Presentation on theme: "Aneroid Mercurial Barometer. Aneroid Barometer Considered to be the most accurate Barometer."— Presentation transcript:

1 Aneroid Mercurial Barometer

2 Aneroid Barometer Considered to be the most accurate Barometer

3 Parts Knurled knob

4 The simple Aneroid Barometer is in the form of Corrugated capsule

5 By means of linkage system its movement can be magnified which is shown by a moving pointer

6 The pointer rotates over a dial graduated in hectopascals or Millibars

7 The elastic properties of the metal capsule change with the time and the instrument should therefore be checked at frequent intervals against an accurate barometer to determine index error

8 Barometer is also used to observe the change in pressure over a period using a knurled knob

9 Quiz Label the parts of a barometer 1. 2. 3. 4. 5.

10 Quiz 6. _____Considered to be the most accurate 7. _____ The error of the barometer due to its age. 8. _____ Part of a barometer used to obeserve the change in pressure 9. _____ The unit used in barometer reading. 10. _____ The simple Aneroid Barometer is in the form of


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