1. Determine what standard the object to be inspected uses to detect China's current inspection standards (national standard GB, ministry standard JB, line standard HB), international standard ISO or American standard ASMI, etc.
2. Determine what method is used to detect a) Damage (a detection method that takes part of the object to be inspected or deforms it, the detection accuracy is high; the detection speed is slow): chemical analysis, physical test.
b) Non-destructive (a detection method that does not damage the inspected items, the detection accuracy is relatively low; the detection speed is fast): rays, sound waves, electromagnetics, penetration, and mirror phase.
3. Sensor selection sensor: Convert the quantity to be detected into a component that we can display, calculate or input to other machines, and the detection accuracy mainly depends on it.
4. The detection accuracy and applicable range are determined by the maximum and minimum detection amount of the inspected items, combined with 1, 2, 3. Select the closest sensor accuracy and range value. The larger the value, the higher the price.
5. The performance price of the test product is more new than the product function, and the price is higher. (Performance / Price) Judging from the results obtained, the value is high. The update cycle of electronic products is short, and it is not suitable to buy very new soft technology (soft technology: good operation interface, good sense, and unchanged accuracy).
6. The standardization of testing products stipulates that all measurement and testing instruments and equipment in use must pass standard measurement appraisal (yearbook).
7. After-sales service for testing products For long-lived testing equipment and instruments, we must pay great attention to the commitment of maintenance and renewal.
8. Detection of product service life, supply of wearing parts, ray generating devices, electronic vacuum devices, mechanically worn parts, natural corrosion of mirror surface
9. The user group of testing products is relatively stable with respect to the products, and the maintenance of spare parts is convenient.
10. Technical training product distributors should have higher technical strength and be able to provide more technical training, so as to improve our utilization rate of purchased instruments and correct use and maintenance methods.
11. Distributors of other products should be reliable.
2. Determine what method is used to detect a) Damage (a detection method that takes part of the object to be inspected or deforms it, the detection accuracy is high; the detection speed is slow): chemical analysis, physical test.
b) Non-destructive (a detection method that does not damage the inspected items, the detection accuracy is relatively low; the detection speed is fast): rays, sound waves, electromagnetics, penetration, and mirror phase.
3. Sensor selection sensor: Convert the quantity to be detected into a component that we can display, calculate or input to other machines, and the detection accuracy mainly depends on it.
4. The detection accuracy and applicable range are determined by the maximum and minimum detection amount of the inspected items, combined with 1, 2, 3. Select the closest sensor accuracy and range value. The larger the value, the higher the price.
5. The performance price of the test product is more new than the product function, and the price is higher. (Performance / Price) Judging from the results obtained, the value is high. The update cycle of electronic products is short, and it is not suitable to buy very new soft technology (soft technology: good operation interface, good sense, and unchanged accuracy).
6. The standardization of testing products stipulates that all measurement and testing instruments and equipment in use must pass standard measurement appraisal (yearbook).
7. After-sales service for testing products For long-lived testing equipment and instruments, we must pay great attention to the commitment of maintenance and renewal.
8. Detection of product service life, supply of wearing parts, ray generating devices, electronic vacuum devices, mechanically worn parts, natural corrosion of mirror surface
9. The user group of testing products is relatively stable with respect to the products, and the maintenance of spare parts is convenient.
10. Technical training product distributors should have higher technical strength and be able to provide more technical training, so as to improve our utilization rate of purchased instruments and correct use and maintenance methods.
11. Distributors of other products should be reliable.
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