With the development of modern technology, geometric measurement has become an indispensable part of many engineering fields. By accurately measuring the shape, size and other geometric properties of objects, it can provide an important basis for product design, machining, engineering measurement, etc. How to make geometric measurements and how to choose the right instrument?
Geometric quantity measurement mainly involves length, angle, shape and other aspects, among which length measurement is the most basic and most commonly used. The basic principle of length measurement is to determine the length of an object by measuring the distance between two endpoints using the scale or measuring sensor of a measuring instrument. Angle measurement, on the other hand, determines the angle of an object by measuring the angle between them. Shape measurement describes the shape characteristics of an object by measuring the curvature and bending of the surface of the object.
Traditional geometric measuring instruments include micrometers, angle rulers, vernier calipers, etc., which can meet the general geometric measurement needs. However, with the development of science and technology, more and more high-precision measuring instruments are used in the field of geometric measurement. From the nano-level optical 3D surface profiler to measure the three-dimensional shape of the object through optical principles, to the high-precision (m-level) and large working space (100-meter-level) coordinate and spatial attitude measurement of the 100-meter-level laser tracker, which greatly improves the accuracy and efficiency of geometric quantity measurement
The SuperViewW series of optical 3D surface profilers is based on the principle of white light interference in a 3D non-contact mannerMeasure and analyze the key parameters and dimensions of the surface topography of the sample, from 0From ultra-smooth surfaces in the 1 nm range to rough surfaces in the tens of microns, the instrument can achieve high-precision measurements.
Marsclassic series CMM is a domestic CMM, the controller, probe seat, software are all independently developed, safe and controllable. The maximum permissible indication error (1.)5+l/350）μm，The measuring stroke extends from 500mmx700mmx500mm to 800mmx1000mmx600mm, providing a wide range of metering solutions.
SJ57 series roughness profile analyzer all-in-one machine measures the same contour and roughness parameters at one time. sj5730It has a large range roughness measurement range of 12mm 24mm and a resolution of up to 01 nm, the system residuals are less than 3 nm。Nano-scale large-range roughness measurement, with high precision, high stability and high repeatability, is a powerful tool for fine roughness measurement in the field of large-curved surface measurement (bearings, artificial joints, precision molds, gears, blades, bearing rollers).
novator series automatic imager0Raster display resolution of 1 m, combinedFlying measurement, image stitching, independent lifting of ring light, image matching, non-contact 3D scanning imaging and other functionsto meet the measurement needs in many aspects.
GTS series laser trackerThe maximum measuring radius is 180 metersYesHigh precision (M level), large working space (100 meters level).PortableThe large-size coordinate measuring machine can be used in conjunction with various forms of cooperative target probes to accurately measure geometric features such as points, lines, surfaces, and curved surfaces in large-scale spaceIt can quickly and accurately measure complex features such as internal features, hidden features, or curved surfaces of the workpiece to be measured according to the precise spatial attitude of the cooperation target.
How to choose the right instrument?The geometric properties and accuracy requirements to be measured should be determined according to the needs to select the appropriate measuring instrument.
Geometric quantity measurement is an important technology in the field of modern engineering. By accurately measuring the shape, size and other geometric properties of objects, it can provide an important basis for product design, engineering measurement, etc. In the measurement process, we need to understand the basic principles and precision instruments, and pay attention to selecting the right instrument, controlling environmental factors, and improving the technical level of the operator. Only in this way can we obtain accurate and reliable geometrical measurements that can provide strong support for engineering practice.
Measuring instruments