— Reservation hotline—15175713336
中文版
Product display
Current location:Home page--Screw micrometer
Screw micrometer
Screw micrometer
Spiral micrometer and micrometer (micrometer), micrometer, micrometer, is measuring the length of more sophisticated tools than vernier caliper, can accurately to use it to measure the length of 0.01mm, the measurement range of a few centimeters.
Supplier:Cangzhou Bozhong Heavy Industry Machinery Equipment Co., Ltd.
Sales Hotline:15175713336

  Said spiral micrometer micrometer (micrometer), micrometer, micrometer, is measuring the length of more sophisticated tools than vernier caliper, can accurately to use it to measure the length of 0.01mm, the measurement range of a few centimeters. A part of it is machined into a thread with a pitch of 0.5mm. When it rotates in the spiral sleeve of the fixed sleeve B, it moves forward or backward, and the movable sleeve C and the screw rod are connected into one whole, and the periphery of the movable sleeve is divided into 50 compartments. The number of turns of the screw is measured by the line of 0.5mm spaced on the fixed sleeve, and the part less than one circle is measured by the groove around the moving sleeve. The final measurement result needs to be read to a decimal number.

  The first such measuring tool was patented by French inventor Jean Laurent Palmer in 1848. It is known as a circular caliper with a vernier caliper". Today, we still use this typical feature to manufacture an outside micrometer. The introduction of mechanical micrometer world begins in the two United States R. Brown and Lucian Engineer Joseph Sharpe in the 1867 visit to the Paris exhibition, their attention is attracted to the invention of the Palmer, and is very interested in.

  After the design of the Palmer was improved, the product was manufactured in large quantities and successfully promoted by the two partners in the market. When Swiss TESA decided to make an outside micrometer, they repeated the story that had happened, making it the company's first product. Individual exceptions (such as measuring gear micrometer, micrometer) we use the following Abbe principle (A Bei principle), such as comparator. The micrometer spindle is machined by a modern grinding machine, with high profile accuracy and negligible pitch deviation. The machining condition guarantees the extremely low measurement uncertainty of micrometer.