Adjust the micrometer on the stage of the microscope and accurately focus the divisions.
Place the filar micrometer and the stage micrometer in their respective positions.
The adjustments of the objectives are accomplished by rack and pinion and by micrometer screw.
Focus the scale of each micrometer accurately, and make the lines on them parallel.
Once adjusted in this way the micrometer values are the same for all the eye lenses of the combination.
Note the optical combination employed in this experiment and record it with the calculated micrometer value.
Observation through the eikonometer shows its micrometer scale superposed on the image of the stage micrometer.
Insert the eyepiece micrometer inside the ocular and adjust the stage micrometer on the stage of the microscope.
Place a stage micrometer divided into hundredths of a millimetre on the microscope stage and focus accurately.
Rotate the head of the micrometer screw until the movable line has transversed one division of the stage micrometer.
Focus the scale of the stage micrometer accurately; the lines will appear to be immediately below those of the eyepiece micrometer.
Coarse adjustment by rack and pinion, fine adjustment by micrometer screw with graduated head.
This device may be so adjusted as to move the micrometer disc any number of teeth from one to ten with each sweep of the knife.
Note the optical combination employed in this experiment and record it carefully, together with the micrometer value in terms of mu.
In many cases the orifice is a rectangular slot in a brass plate and is adjusted by means of a brass slide operated by a micrometer screw.
Rotate the screw of the filar micrometer until the movable wire coincides with the fixed one, and the index marks zero on the drum head.
Calculate the value of each division of the eyepiece micrometer in terms of mu, by means of the following formula: x = 10 y.
You see, Jervis, we have photographed the thumb-print in contact with a numbered micrometer divided into square twelfths of an inch.
Before the invention of the micrometer exactitude was impossible, because the adjustment of the instrument depended on the discrimination of the naked eye.
With each return of the knife-carrier to the end of its track pressure is made upon an adjustable lever which regulates the motion of the micrometer wheel.
The micrometer is now regarded as an indispensable appliance in the observatory; the use of a spider web reticule instead of wire having improved its efficiency.
Project the scale of the stage micrometer on to a piece of paper and with pen or pencil sketch in the magnified image, each division of which corresponds to 10 mu.
A micrometer consists of a short tube, across the opening of which are stretched two parallel wires; these being intersected at right angles by a third.
It is a small piece of apparatus resembling an eyepiece, with a sliding eye lens, which can be accurately focussed on a micrometer scale fixed within the instrument.
The stand is inclinable and fitted with revolving centering stage, coarse adjustment by rack and pinion, fine adjustment by micrometer screw with scale.
The value of one division of the micrometer scale must first be ascertained for each optical combination by the aid of the stage micrometer, thus: 1.
The value of each graduation on the drum (about 1/20 of the micrometer value of the objective) must be determined for each combination of ocular and objective by means of the stage micrometer.
Short & Simple Example Sentence For Micrometer | Micrometer Sentence
The micrometer was a further advance in exact measurement.
The objectclamp is raised vertically by a micrometer screw.
They are all provided with fine adjustment by micrometer screw.
By means of the Filar Micrometer (Ramsden's micrometer eyepiece).
Definition of Micrometer
A device used to measure distance very precisely but within a limited range, especially depth, thickness, and diameter.
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