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a glass disk that fits in a microscope eyepiece and that has a ruled scale; when calibrated with a slide micrometer, direct measurements of a microscopic object can be made.
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∙ 15y ago
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Why is it necessary to calibrate the ocular micrometer with each objective?
The ocular micrometer is inside the ocular lens, it will not change size when the objectives are changed. Therefore, each objective lens must be calibrated separately. Ocular micrometers have no units on them - they are like a ruler with marks but no numbers. In order to use one to measure something under a microscope, you must assign numbers to the marks. This is done by looking through your OCULAR micrometer at a STAGE micrometer mounted on a slide. The stage micrometer is just a ruler with fixed known distances, so you can use it to tell how far apart marks are on the ocular micrometer. This has to be done because the marks on the ocular micrometer are different distances apart depending on the magnification used on the microscope. It must be calibrated for each objective.
What is the difference between stage micrometer and ocular micrometer?
Ocular micrometers are see-through disks with a ruler in them that go in the eypiece of a microscope to measure what you are seeing. Stage micrometers are put on the stage/view platform of the microscope, so instead of putting them in the eyepiece you are putting them right next to the object you are looking at in the microscope.
What is bigger a meter or a micrometer?
A meter is larger than a micrometer.
Least count of micrometer caliper in millimeter?
A micrometer caliper is a measuring device for finding very exact measurements of an item. The least count of a micrometer caliper in millimeter is 0.02.
What is a laser micrometer used for?
A laser micrometer is used for many things. A laser micrometer is used for medical purposes, science experiments, health purposes, and computer science purposes.
What does 1 ocular micrometer division equal on a 10x objective?
1 ocular micrometer scale is equal to 1micrometer when it is seen from 10X objective it will be magnify by 100 times so, 1 ocular micrometer division become 0.1mm ( 1um * 100 = 0.1mm)
Why is it necessary to calibrate to ocular micrometer with each objective?
The ocular micrometer is inside the ocular lens, it will not change size when the objectives are changed. Therefore, each objective lens must be calibrated separately. Ocular micrometers have no units on them - they are like a ruler with marks but no numbers. In order to use one to measure something under a microscope, you must assign numbers to the marks. This is done by looking through your OCULAR micrometer at a STAGE micrometer mounted on a slide. The stage micrometer is just a ruler with fixed known distances, so you can use it to tell how far apart marks are on the ocular micrometer. This has to be done because the marks on the ocular micrometer are different distances apart depending on the magnification used on the microscope. It must be calibrated for each objective.
Why is it necessary to calibrate the ocular micrometer with each objective?
The ocular micrometer is inside the ocular lens, it will not change size when the objectives are changed. Therefore, each objective lens must be calibrated separately. Ocular micrometers have no units on them - they are like a ruler with marks but no numbers. In order to use one to measure something under a microscope, you must assign numbers to the marks. This is done by looking through your OCULAR micrometer at a STAGE micrometer mounted on a slide. The stage micrometer is just a ruler with fixed known distances, so you can use it to tell how far apart marks are on the ocular micrometer. This has to be done because the marks on the ocular micrometer are different distances apart depending on the magnification used on the microscope. It must be calibrated for each objective.
Can a calibrated ocular micrometer measure the diameter of the field?
Yes, a calibrated ocular micrometer can be used to measure the diameter or length of a field or object. Essentially, that is all that it is used for.
Can a calibrated ocular micrometer measure the diameter of a field?
Yes, a calibrated ocular micrometer can be used to measure the diameter or length of a field or object. Essentially, that is all that it is used for.
Why is the calibration factor for the ocular micrometer specific for each ocular objective combination?
it is because the objectives have different values of magnification.....
What is the difference between stage micrometer and ocular micrometer?
Ocular micrometers are see-through disks with a ruler in them that go in the eypiece of a microscope to measure what you are seeing. Stage micrometers are put on the stage/view platform of the microscope, so instead of putting them in the eyepiece you are putting them right next to the object you are looking at in the microscope.
Why the calibration of ocular micrometer is used for each objective lens?
It is necessary to superimpose the two scales and determine how many of the graduations coincide with one graduation on the scale of the stage micrometer.
What is stage micrometer?
a tiny ruler that you know the measurements of, and you use it to calibrate the ocular lens of a microscope
If thirteen ocular divisions line up with two division of the stage micrometer what is the diameter of a cell that spans sixteen ocular divisions?
Two divisions of the stage micrometer is equal to 20 micrometers. 20 micrometers/13 = 1.54micrometers You multiply this by 16 to find the diameter of the cell. 1.54 x 16 = 24.62 micrometers
How are microscopic distances measured?
Microscopes are equipped with a scale called a reticule . This is built into the eyepiece. The ocular micrometer consists of 50-100 divisions.
What is a micrometer equal to?
A micrometer is equal to exactly 1 micrometer.
