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What is micrometry?
What is the scale employed in micrometry called?
How many divisions make up 1mm measurement on a stage micrometer?
Where is the ocular micrometer usually placed for calibration?
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What does the smallest division on a stage micrometer measure?
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MICROMETRY can be defined as the measure of dimensions of particles in view under a microscope. It is important to get the actual size of an object under view. In micrometry, the scale employed in the measurement of dimensions is called ______.
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There are two types commonly used: The stage micrometer The ______.
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The stage micrometer is a standard scale with standard unit of measurement. It looks like a meter rule etched on a slide (the scale is similar to a glass slide but with a scale of measurement on it). It has 100 divisions (i.e lines) which make up 1mm measurement. The smallest division is 0.01mm (10µm). 100 lines = 1mm 1 line = 0.01mm 0r 10µm Note: although each division on a stage micrometer measures 0.01mm, dimensions are to be presented in ______.
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The ocular micrometer is a circular glass plate with 100 divisions (lines) marked 0 – 10 and is without a standard unit. It is usually placed on the eye piece of the microscope and calibrated using the ______ mic.
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MICROMETRY can be defined as the measure of dimensions of ______ in view under a microscope.
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