What parameters should be confirmed when the image measuring instrument is checked and accepted?
What parameters should be confirmed when the image measuring instrument is checked and accepted? Published: 2019-08-29 Source: http://www.microaccuracy.com/ Image measuring instrument is a very important precision equipment for many factories and enterprises. In order to ensure the measurement accuracy of image measuring instrument, it must be carried out when the manufacturer delivers For detailed acceptance, what parameters should be confirmed when the image measuring instrument is accepted? The accuracy of the image measuring instrument is affected by a number of parameters. The following parameters need to be checked during the acceptance process: Dimension measurement error on the plane (Exy): The measurement error represents placing the product or sample in any direction on the image measurement plane. Pieces, measure the indication error of the two-dimensional size. Dimension measurement error on Z axis (Ez): This measurement error represents the indication error measured in a single axis direction perpendicular to the image measurement plane. Dimension measurement error (Ev) of the measuring head: without moving the platform, the indication error of any size of the measuring plane within the image field of view. Measure the consistency of the measurement results of each section (Ec): When the image measuring instrument measures on different sections of the optical axis, the consistency of the projection of the coordinate origin of each section and the XY plane can be understood as when the image measuring instrument moves up and down in the Z direction. The verticality between the Z axis and the XY horizontal plane can also reflect the consistency of the image measurement characteristics of the measuring head at different heights. Two-dimensional detection error (P2D): Use an image measuring instrument to measure the range of change in the radius of the standard circle. Probe detection error (PV): Use an image measuring instrument to measure the range of change in the radius of the standard circle within the field of view. Variable magnification detection error (Pz): Use an image measuring instrument to measure the variation range of the standard circle center coordinates under different magnifications. At present, domestic medium and low-end image measuring instruments have overcapacity. This type of measuring instrument is difficult to achieve high-precision detection. Therefore, enterprises must check and accept the quality of image measuring instruments. As a professional domestic measuring equipment manufacturer, MiaoJi can provide a variety of high-precision image measuring instruments, one-button measuring instruments and other high-quality equipment. Customers in need are welcome to contact us for consultation.