The daily protection and maintenance of image measuring instrument is very important, but when the instrument is not working or working, there are strict requirements for the surrounding environment. This environment will produce a slow-motion box on the instrument, which will gradually decrease if the service life of the instrument is not paid attention to. Therefore, users should pay attention to these problems, because the accuracy of the instrument will also be affected by the environment. In addition to the following requirements, general instruments should be placed in a clean environment:

1. Clean environment

The image measuring instrument is a very precise instrument, so it is impossible to be contaminated with dust. Once the instrument guide rail and lens are stained with dust and debris, it will seriously affect the accuracy and imaging. Therefore, it is necessary to clean the instrument regularly and try to achieve a dust-free environment. People entering and leaving should pay attention to changing shoes or bringing shoe covers. And reduce personnel access.

2. Reduce oil pollution

Image measuring instrument is a very precise instrument, so its guide rail, lens, grating ruler and plane glass should not be contaminated with oil, otherwise it will affect the normal use of the instrument. Usually be careful not to touch the instrument directly with unclean hands, and it is best to wear cotton gloves.

3. Slight impact

The measuring instrument should not be directly exposed to the sun, nor should it be placed in a place with strong sunlight, otherwise the accuracy of the instrument will be affected, and the instrument will be damaged if the direct temperature is too high for a long time.

4. Temperature control

The ambient temperature of the measuring instrument is 18℃-24℃, which cannot exceed this range, otherwise the accuracy will be damaged.

5. Moisture regulation

Humidity will also affect the accuracy of the instrument, and too high ambient humidity will lead to rust of the instrument. So the general environmental humidity should be controlled between 45% and 75%.

6. Pay attention to shock absorption

If the instrument is exposed to vibration for a long time, its parts will be damaged and its accuracy will decrease. Shock absorption is very necessary. When the frequency is less than 10 Hz, the amplitude should be less than 2um. The acceleration should be less than 0.4Gal when the frequency is 10Hz-50Hz. If these vibration environments are uncontrollable, shock absorbers should be installed to reduce vibration.

No matter how good the brand is and the quality is, we should also pay attention to the use and maintenance. The influence of environmental control on measuring instruments is subtle. Paying attention to the above points can protect the instrument, reduce damage, avoid unnecessary maintenance and save costs.

Second, the matters needing attention in the use of image measuring instrument

Image measuring instrument is a high-precision measuring instrument, so in order to obtain accurate measurement results, it is necessary to avoid errors in the measurement process. Correct use of image measuring instrument can ensure the accuracy of data. Therefore, in order to obtain accurate measurement results, errors in the measurement process must be avoided. Correct use of image measuring instrument can ensure the accuracy of data. Matters needing attention in the use of image measuring instrument:

1, it is necessary to choose the appropriate workpiece fixing method and the appropriate workpiece direction.

2. The lighting mode of the workpiece is also very important, and it should be designed according to the measured characteristics.

3, according to the drawings to determine the workpiece coordinate system, so as to define the workpiece datum in the coordinate system.

4. The imager without automatic zoom system needs to calibrate the image, and the image measuring instrument also needs to determine the appropriate magnification.

5. The path and method of measurement are very important, and it is necessary to determine the accurate path and method.

6. Programming the image measuring instrument and recording the labeling information can make the data more accurate and more conducive to data maintenance.

Three. Matters needing attention in maintenance and inspection of image measuring instrument

In the process of maintenance of precision measuring instruments such as instruments, we must first understand the basic principles of precision measuring instruments and master the knowledge and skills related to electronics. Secondly, you should prepare the required instrument instructions, drawings and other materials. Third, in the process of maintaining precision instruments, we should cultivate good working quality, improve efficiency and reduce mistakes.

Matters needing attention in maintenance inspection:

1, remember not to use electricity to measure when using the ohm range of multimeter.

2. When infrared thermometer uses logic pen and oscilloscope to detect signals, it should be careful not to let the probe touch two measuring needles at the same time, because the essence of this situation is to form a short circuit when power is on.

3. When detecting the filter capacitor in the power supply, the anode and cathode of the electrolytic capacitor should be short-circuited first. When short-circuited, don't use the probe wire instead of the wire to discharge the capacitor, because it is easy to burn out the core wire.

4. When the instrument fails in a humid environment, it is necessary to test the smoothness of each point of the printed circuit with a multimeter, because the main failure in this case is copper foil corrosion.

5. When checking the internal circuit of the instrument, if the contact between the mounting element and the circuit board is coated with varnish, when measuring the parameters of each point, an ordinary hand sewing needle can be welded on the probe of the multimeter, thus piercing the paint layer and directly measuring each point without peeling off the paint layer in a large area.

6. Don't plug and unplug all kinds of control panels and plugs with electricity. Because the induced electromotive force is very strong when plugging and unplugging the control board, the instantaneous counterattack voltage is very high, which is easy to damage the corresponding control board and plug.

7. Don't blindly knock and touch when checking, so as not to expand the fault and make it worse.

8. When disassembling and adjusting the instrument, the original position should be recorded for recovery.

9. When repairing precision instruments, if you accidentally touch small parts and bounce off, you must first determine where they may fly. Don't look around. You can find them by magnet scanning and line-of-sight scanning.