Date：2022-06-29 16:36:39

From the perspective of information technology, photoelectric switch is a tool to obtain and convert information, which can be electricity, magnetism, light, sound, heat, force, displacement, etc. Sensitive element is the core component of sensor, which is used to sense external information and convert it into useful information. The same sensing element can form different application photoelectric switches due to different devices. How many types of photoelectric switches are there? How to detect good and bad? This article has collected and sorted out some materials, which are expected to be of great reference value to all readers. View >>

Date：2022-06-28 17:34:48

The quality requirements for the components used in switching power supply and other electronic equipment are also getting higher and higher. With the wide use of semiconductor devices, their life has been degraded and finally led to failure. Failure analysis can deeply understand the failure mechanism and causes, and lead to the improvement of component and product design, which is helpful to improve the reliability of electronic systems. View >>

Date：2022-06-28 17:32:20

Environmental test for ship electronic equipment low temperature storage test gjb4.4-1983 environmental test for ship electronic equipment low temperature test gjb4.3-1983 View >>

Date：2022-06-27 18:01:59

In the process of product design, technical activities are taken to eliminate potential defects and weak links of products, prevent failures, and ensure that the specified inherent reliability requirements are met. Reliability design is an important part of reliability engineering and the most critical link to realize the inherent reliability requirements of products. It is realized by formulating and implementing reliability design criteria on the basis of reliability analysis. View >>

Date：2022-06-23 18:01:31

The solderability test of components is mainly aimed at the solderability of welding ends or pins. The primary cause of solderability problems is oxidation or pollution on the surface of components' welding ends or pins, which is also the primary factor affecting the reliability of SMA welding. Oxidation or pollution is easy to occur on the welding end or pin surface of components. In order to ensure the welding reliability, it is necessary to pay attention to the packaging conditions and environmental conditions of components during transportation and storage. It is also necessary to take measures to prevent components from being exposed to the air for a long time before welding, and to prevent them from being stored for a long time. Before welding, it is necessary to pay attention to the solderability test of components to facilitate the timely detection and treatment of problems. There are many ways to test the solderability of components. The following is a brief introduction to several commonly used test methods. View >>

Date：2022-06-23 17:55:00

EMC test is also called electromagnetic compatibility (EMC), the full name of which is Electromagneticcompatibility. It refers to the comprehensive evaluation of the electromagnetic interference (EMI) and anti-interference (EMS) of electronic products. It is one of the important indicators of product quality. EMC measurement consists of test sites and test instruments. EMC, that is, electromagnetic compatibility, includes two requirements: the first refers to the maximum limit of electromagnetic interference generated by the equipment to the environment during normal operation; The second refers to the immunity of the appliance to electromagnetic interference in its environment. Firstly, the equipment shall be able to work normally under certain electromagnetic environment, that is, the equipment shall have certain electromagnetic immunity (EMS); Secondly, the equipment is manufactured by itself View >>

Date：2022-06-22 17:47:27

Welding refers to the manufacturing process and technology of joining metal or other thermoplastic materials by means of heating, high temperature and high pressure. Welding is a very important process in PCB production. If there is no welding, various devices cannot converge on the board, and the so-called circuit board cannot be formed. This article has collected and sorted out some materials, which are expected to be of great reference value to all readers. View >>

Date：2022-06-22 17:44:36

The sensor is a kind of detection device, which can feel the measured information, and can transform the detected information into electrical signals or other required forms of information output according to a certain law, so as to meet the requirements of information transmission, processing, storage, display, recording and control. It is the first step to realize automatic detection and automatic control. Sensor technology has developed rapidly in recent years. Sensor technology is needed in all major fields of life. Sensor technology is mainly used in detection and provides great convenience for detection. This paper introduces the role of sensor technology in medical detection, food analysis and environmental detection, to explore more secrets of sensor technology. View >>

Date：2022-06-21 17:22:41

X-ray is a kind of strong penetrating ray, which can penetrate many opaque substances, such as wood, ink paper, etc. In the use of X-rays in industry, the penetrability of X-rays can be used to detect hard foreign bodies such as bones and plastics to various metal foreign bodies with higher sensitivity and stability, helping you to more effectively improve the quality of finished products. View >>

Date：2022-06-21 17:20:00

Nowadays, the application of sensors is very common. There are many sensors in many scientific, industrial, medical and service fields. In case of sensor failure, we need to detect the sensor to determine where the failure occurs. There are many sensor detection methods. This paper has collected and sorted out some data, which is expected to be of great reference value to all readers. View >>