Several common methods for inspection and repair of image measuring instruments

Several common methods for inspection and repair of image measuring instruments. Instruments are used in various manufacturing companies and are more widely used in electronics manufacturing companies. Many electronic products must be tested by instruments before they leave the factory, similar to image measuring instruments for testing electronic components. Instrument testing can reduce the possibility of waste and defective products, and can improve the quality of enterprise products. However, the detection of instrumentation is also very important. Take an electronic company as an example, briefly introduce several common methods of instrument and instrument maintenance: The commonly used method is to use visual, smell, touch, auditory and other methods to check the instrument to see if the instrument has burning smell, spots or noise. Usually, A burnt instrument will have an unpleasant smell, which is easy to smell, and if the chip is short-circuited, it will feel very hot. You can see the local area of u200bu200bthe rupture with your eyes, and sometimes you can hear the abnormal sound of the machine. This may be a problem with the instrument. In case of improper operation or temporary malfunction of the instrument, you can turn off the instrument, reinsert the power switch, etc., or tap the faulty part of the instrument, and then restart it. After restarting, check whether the instrument can operate normally. If it can, it means that the instrument is in poor contact in some places or the power supply is poorly connected. Due to seasonal reasons, the temperature is sometimes too high or too low, which may affect the instrument. If the instrument is turned off after a malfunction, please restart it after a period of time, and then malfunction after a period of normal operation. Repeated occurrence of this phenomenon may be due to The temperature rise during operation caused part of the instrument to be unable to be used normally. Anhydrous alcohol can be used to cool it. The temperature is about too low to adjust the indoor working environment temperature. The troubleshooting method is to be able to pull out the plugs of some built-in boards or devices when the device fails. Assuming that the device can recover normally after unplugging some devices, it means that the unplugged component has a problem and needs to be replaced. Suppose you know that the device has a faulty instrument, or if you are not sure whether a component is faulty, you can check whether the fault has been eliminated by replacing the same new device. Assuming that you have common necessary equipment (such as a multimeter and an oscilloscope) and two instruments of the same model, you can perform some comparison tests, such as waveform comparison, voltage comparison, current comparison, output comparison, etc. Run the image measuring instrument and the instrument under test under the same conditions, and then measure these comparative data. Assuming that some local presentations are different, there is likely to be a problem here. You can also eliminate and reduce the scale of the failure one by one according to the failure flowchart, without the need to use the same type of instrument to test and compare under the same conditions. After the signal is compared, the cause of the failure can be checked through methods such as component communication, which is more convenient and faster.