Errors and uncertainities

1. Errors and Uncertainties
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The difference between Measured and Marked Values, is called Errors
Causes
• Negligence or inexperience person.
• Faulty apparatus.
• Inappropriate method.
Humans

2. Uncertainties
Causes of Uncertainties
• Limitation of Instrument
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4. • Imperfection of human senses
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• Variations in natural process

5. Types of Errors
1. Random error
2. Systematic error
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6. Random Error
Different measurements, gives different results under same conditions
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7. Causes of Random error.
UNKNOWS CAUSES
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8. Remedy of Random error
2.22
2.21
2.20
By taking Average Value
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9. Systematic Error
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Refers to an effect on the measurements, equally.

10. •Incorrect
marking
•Poor calibration
•Zero error
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•Correction
factor
•Proper
calibration