How to use the secondary measuring instrument?

Tangent method refers to the method of manually rotating the reticle on the screen or in the lens, aiming at the two edges of the workpiece respectively, and measuring the angle through encoder or circular grating counting. This method can be divided into two types: projection tangent method, such as projector, tool measuring microscope and so on. And image tangent methods, such as imager and video microscope with video function, rely on oblique tangent rotation measurement provided by software. Tangent method is convenient and simple to operate, but it is low in intensive reading, which is suitable for rapid batch inspection.

2. Calculation method of sampling points.

The point calculation method is more appropriate. All geometric elements have some components, including the basic elements of lines, curves and arcs. Two-dimensional plane angle consists of two straight lines of basic geometric elements and countless points. Therefore, whether the angle measurement is accurate is the most critical.

Two-dimensional detector Two-dimensional detector is used to measure: angle, diameter, radius, distance from point to line, eccentricity of two circles, distance between two points, etc. The secondary detection instrument belongs to two-dimensional measurement, similar to the principle of projector; However, different data processing systems have different measurement and calculation methods. For the secondary detection instrument, CCD usually takes the image to the computer for measurement and calculation. Some functions may not be possible, depending on whether the projector is equipped with a data processor, and the surface measurement effect is not good.

The instrument adopts 1, high-precision granite base, columns and beams to ensure high stability and accuracy.

2. All-aluminum workbench and double-layer grinding optical glass

3. Imported high-precision P-class linear guide rail, precision silent grinding screw rod, high precision and accurate positioning.

4, three-axis servo motor drive

5. Import high-resolution and high-resolution industrial color CCD to ensure high-quality measurement picture.

6. Imported high-definition and high-resolution continuous zoom lens, which can change the working magnification at any time.

7. Imported high-precision metal grating with a resolution of 0.0005mm8, automatic program-controlled partitioned led cold light source, which can provide multi-angle lighting.