Як до читати з a читати мікроскоп
A reading microscope is used to measure small distances or small distance changes. Its structure is divided into mechanical part and optical part, which is a hundred and one telephoto microscope, mounted on a sliding table driven by a screw rod. This sliding table, together with the microscope, can be installed in different directions. Able to move forward, up and down, left and right; Or align below and move left and right. The sliding table is installed on a large base. The range of a reading microscope is usually a few centimeters, with a graduation value of {{0}}.001 centimeters. A common mechanical part of a reading microscope is manufactured based on the principle of a spiral micrometer, with 100 equal divisions on a dial plate linked to a thread rod with a pitch of 1 millimeter. Therefore, its graduation value is 0.001 centimeters. Another type is to use a measuring eyepiece with a 0.01mm scale to measure small displacements.
The operating steps of a reading microscope:
1. Install the reading microscope appropriately and align it with the object to be measured;
2. Adjust the окуляр of the microscope to clearly see the the forked wire (or ruler);
3. Adjust the aggregation of the microscope or move the entire instrument to make the image of the object to be tested clear and eliminate parallax, that is, when the eyes move up and down, there is is no relative movement between the image form by the forked wire and the object to be tested;
4. First align the fork wire with a point (or line) A on the object to be measured, and record the reading; Rotate the screw rod, align it with other point B, and then record the reading. The difference between the two readings is the distance between AB. Note that the screw rod must only move in one direction during during during to to avoid pitch differences.
