How to interpret the reading of a micrometer
In life we often see tape measures used to measure the length of an object, and they are generally only accurate to the centimetre, even the straight edge used by students is only accurate to the millimetre. But sometimes there are designs where a millimetre is considered a huge error, and thus the micrometer was born! Micrometer is also used to measure the length of a precision instrument, it can be accurate to 0.01MM, thus measuring the value of more accurate, thus reducing the error, so powerful tool, how we should read the value of it, the following together to understand the micrometer reading method.
Micrometer reading method
First of all, first understand the composition of the micrometer, is composed of frame, movable scale, anvil, fixed scale, micrometer screw, knob, fine-tuning knob, etc., anvil and micrometer screw is used to clip the measured object, in use before the need to check whether the micrometer itself error, check the method is between the anvil and micrometer screw not clip the measured object, movable ruler of the zero degree engraved line is consistent with the sleeve. If it is different, it means that the micrometer itself has an error and needs to be adjusted, after the adjustment, put the measured object between the small anvil and the micrometer screw. After fixing, first read the fixed scale of the micrometer that is the value of the following A, and the fixed scale corresponding to the upper half scale B, to determine the value of the fixed scale, if the half scale line has been exposed, the value is recorded as 0.5MM.
The accuracy of the micrometer reading with the usual maintenance, the use of proper methods have a great relationship, before using the micrometer must first check whether the zero baseline on its, in the use of the micrometer measuring object to keep the object to be measured clean. If the measured object is very large, you can put on the platform operation, measured after the first need to use cotton cloth to wipe all parts of the micrometer clean, and then use the lubricant maintenance, into the box in a dry place. If you do not often use the micrometer, it is also necessary to wipe on the anti-rust oil to avoid the micrometer rust affect the accuracy of the measurement, the above is about the micrometer reading method of the content, I hope it can help you!
