Vernier
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Publicado: 13 de septiembre de 2010
The Vernier Caliper - Manual Version
Page 1 of 3
Video Measurement VZM-200 Low cost, high accuracy measurement intuitive, computer-based metrology www.caltexsci.com METTLER TOLEDO Industrial,Lab & Retail Scales, Balances & Analytical Instruments! www.mt.com Humidity Sensors humidity measurement & control for automotive and HVAC applications www.sensirion.com/humidity New OpticalComparators 14" to 30" optical comparators -- New technologies & new capabilities www.certifiedcomparator.com
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THE VERNIER CALIPER - MANUAL VERSION
V. Ryan © 2004 - 2010
TheVernier Caliper is a precision instrument that can be used to measure internal and external distances extremely accurately. The example shown below is a manual caliper. Measurements are interpretedfrom the scale by the user. This is more difficult than using a digital vernier caliper which has an LCD digital display on which the reading appears. The manual version has both an imperial and metricscale. Manually operated vernier calipers can still be bought and remain popular because they are much cheaper than the digital version. Also, the digital version requires a small battery whereas themanual version does not need any power source.
HOW TO READ A MEASUREMENT FROM THE SCALES EXAMPLE 1: The external measurement (diameter) of a round section piece of steel is measured using a verniercaliper, metric scale. MATHEMATICAL METHOD A. The main metric scale is read first and this shows that there are 13 whole divisions before the 0 on the hundredths scale. Therefore, the first number is13. B. The’ hundredths of mm’ scale is then read. The best way to do this is to count the number of divisions until you get to the division that lines up with the main metric scale. This is 21divisions on the hundredths scale. C. This 21 is multiplied by 0.02 giving 0.42 as the answer (each division on the hundredths scale is equivalent to 0.02mm). D. The 13 and the 0.42 are added together to...
Page 1 of 3
Video Measurement VZM-200 Low cost, high accuracy measurement intuitive, computer-based metrology www.caltexsci.com METTLER TOLEDO Industrial,Lab & Retail Scales, Balances & Analytical Instruments! www.mt.com Humidity Sensors humidity measurement & control for automotive and HVAC applications www.sensirion.com/humidity New OpticalComparators 14" to 30" optical comparators -- New technologies & new capabilities www.certifiedcomparator.com
CLICK HERE FOR INDEX PAGE
THE VERNIER CALIPER - MANUAL VERSION
V. Ryan © 2004 - 2010
TheVernier Caliper is a precision instrument that can be used to measure internal and external distances extremely accurately. The example shown below is a manual caliper. Measurements are interpretedfrom the scale by the user. This is more difficult than using a digital vernier caliper which has an LCD digital display on which the reading appears. The manual version has both an imperial and metricscale. Manually operated vernier calipers can still be bought and remain popular because they are much cheaper than the digital version. Also, the digital version requires a small battery whereas themanual version does not need any power source.
HOW TO READ A MEASUREMENT FROM THE SCALES EXAMPLE 1: The external measurement (diameter) of a round section piece of steel is measured using a verniercaliper, metric scale. MATHEMATICAL METHOD A. The main metric scale is read first and this shows that there are 13 whole divisions before the 0 on the hundredths scale. Therefore, the first number is13. B. The’ hundredths of mm’ scale is then read. The best way to do this is to count the number of divisions until you get to the division that lines up with the main metric scale. This is 21divisions on the hundredths scale. C. This 21 is multiplied by 0.02 giving 0.42 as the answer (each division on the hundredths scale is equivalent to 0.02mm). D. The 13 and the 0.42 are added together to...
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