Marble comparator, marble tester, marble spiral comparator

Marble Comparator | Marble Comparator | Marble Comparator | Marble Comparator A length measurement tool that uses the relative method to measure is mainly composed of a micrometer and a comparator base. When measuring, first use a measuring block to grind it together to form a length that is equal to the basic size of the measured object. Gauge block group, then use this gauge block group to make the micrometer pointer to zero, and then replace the workpiece to be measured. The micrometer pointer indicates the deviation value of the measured size. The amplification principle used by the micrometer, comparator It can be divided into mechanical comparators, optical comparators and electrical comparators
Mechanical comparators and dial indicators and dial indicators, lever gear micrometers or torsion spring micrometers and other mechanical indicating meters as amplification The working principle of the indicating component rod gear micrometer is similar to that of a dial indicator and a dial indicator. The first amplification mechanism is a lever, and its graduation value is usually microns. A spring micrometer is an indicating meter with a non-mechanical friction amplification mechanism. [Working principle of torsion spring micrometer] The main amplifying element is a metal sheet with one end twisted to the right from the middle and the other end twisted to the left (the width is about meters and the thickness is about meters). It is called a torsion spring wire. Its middle When the pointer rod made of hollow glass wire with a diameter of about one meter moves up and down, the movable bracket converts the up and down displacement into left and right displacement, shortening or elongating the torsion spring wire, and drives the pointer to rotate at an angle, which is visible from the dial. The spring micrometer that can read the displacement of the measuring rod is very sensitive. The common graduation values are microns, meters, meters and meters. The maximum range of meter values is generally 1 graduation value. Mechanical comparators are commonly used in workshops. Measure the outer diameter and thickness of the workpiece in the measuring room