How does the image measuring instrument measure rough workpieces?
An image measuring instrument is a precision device that uses optical principles to perform non-contact measurement. It can effectively measure various two-dimensional plane areas. However, the rough surface of the workpiece easily affects the sharpness of imaging. How does the image measuring instrument measure rough workpieces? However, not all workpieces actually measured are smooth. Rough workpieces will cause unclear imaging. Therefore, three methods are usually used: imprinting method, interferometric method and light section method for measurement: 1. Imprinting method: It means to use paraffin wax or some low melting point alloy and other imprinting materials to print the workpiece on the measurement The workpiece surface is then placed under the microscope of the image measuring instrument for measurement. Although this method can provide very good measurement results, it has certain limitations and is mainly suitable for large or heavy workpieces. 2. Interferometry: Refers to the principle of light wave interference using image measuring instruments and then using an interference microscope to measure specific dimensions. 3. Light section method: It is also carried out using the light section principle of the image measuring instrument, and the related measurement is carried out using the double-tube microscope of the equipment.
Hydraulic universal testing machines have very high accuracy requirements.
The hydraulic system is the power drive mechanism of the tensile testing machine.
The specific application of the electronic universal testing machine in the automobile manufacturing process: The electronic universal testing machine needs to be used for automobile parts.
Wave soldering refers to the molten solder (lead-tin alloy), sprayed by electric pump or electromagnetic pump into the solder wave required by the design, can also be formed by injecting nitrogen into the solder pool, so that it is pre-loaded The printed board of the component realizes the soft soldering of the mechanical and electrical connection between the solder end or the pin of the component and the pad of the printed board through the solder wave.
The frequency converter is a power control equipment that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's working power supply.
Electronic universal testing machine is a necessary equipment to control the quality of products.
The calibration operation of the electronic universal testing machine is still relatively unfamiliar to friends who use it for the first time.
Selective wave soldering defects and their prevention.
Testing machine, broadly speaking, is an instrument that verifies the quality or performance of a product or material according to the design requirements before it is put into use.
The tensile force is not an accurate value after being measured by the testing machine, and subsequent calculations are required to get the desired value.
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