Liquid crystal SCSI Connector Factory are polymers with liquid crystallinity, and they are often formed by bonding small-molecule liquid crystal cells. These mesogens can be rod-shaped, disc-shaped, or more complex two-dimensional or even three-dimensional shapes, or even a combination of both, and can also be amphiphilic molecules. So far, more than 20,000 liquid crystal substances have been discovered, and more than 20 liquid crystal forms have been discovered.
Compared with other organic polymer materials, LCP has a relatively unique molecular structure and thermal behavior. Its molecules are composed of rigid rod-shaped macromolecular chains. After being melted by heat or dissolved by solvents, they no longer have most of the properties of solid substances, but Form a transitional intermediate phase with both solid and liquid properties--liquid crystal state, the molecular arrangement of which is between the ideal liquid and crystal, in a one-dimensional or two-dimensional remote order--molecules are arranged in position It shows disorder, but still has a certain degree of order in the molecular orientation, showing good anisotropy.
This anisotropy of LCP makes it have high strength, high modulus and self-reinforcing properties, outstanding heat resistance, excellent resistance to cold and heat alteating properties, excellent corrosion resistance, flame retardancy, electrical properties and molding Processing performance. Its linear expansion coefficient and friction coefficient are extremely small. It also has excellent radiation resistance and good transparency to microwaves.
These properties have made the development of LCP extremely rapid, and the research on LCP has become more and more in-depth. 1. LCP research trends at home and abroad Since its birth, LCP has been widely used as special synthetic fibers and special engineering plastics. At present, it has been widely used in chemical processing industry, electronic and electrical, aerospace and military fields at home and abroad.
According to different structure series and plug connector models, single, multiple, and thin wire cross-sections can be connected, with or without core wire terminal sleeves, with an area of 0. It is the only new-generation connector in the world that has passed the North American NEMA 250-1991 Typ 4x specification. The reason is that the RockStar housing only has inteal threads, so that the usual threaded connections are not needed when the wires pass.
Weidmüller heavy-duty connectors are carefully packed in small plastic bags in strict accordance with the China Female Header order quantity, which reduces storage costs, and there is no longer a supply of ultra-large packaging units. In other words: they must not fail in operation. IP69k type enclosure is also available in XXL type. However, this alone is not unusual, because the heavy-duty connector technology has been recognized as a mature technology in the market.
Therefore, Weidmüller has conducted research and analysis on heavy-duty connectors. Since all the bent irons and bolts of the interlocking system on the RockStar standard housing are also made of stainless steel, there is no need for a housing originally designed for corrosive environments.
Two of the advantages of the connector are unique features that RockStar shows: First, this connector is the only one in the world that has passed the North American regulation NEMA 250-1991Typ 4x verification. The advantages are: the connector equipped with this contact system has a large contact surface, small heat generation, small size and large design current. The advantage of this is that the customer does not need to record many order numbers and warehouse positions, but only one order number and one warehouse position
Compatible, so you need to use level conversion circuit to connect with TTL circuit. 2. 5. The inteational standard of RS-485 does not stipulate the standard of RS485 interface connector, so you can use terminal blocks or DB-9, DB-25 connectors. Because the RS-485 interface has good anti-noise interference, long transmission distance and multi-station capability, the above advantages make it the preferred serial interface. What are the characteristics of RS-485 compared to RS-232-C interface? Answer: Since the RS-232 interface standard appeared earlier, it is inevitable that there are shortcomings, mainly as follows: (1) The signal level of the interface is high, which is easy to damage the chip of the interface circuit, and because the level is different from TTL level.2Kbps.
The RS-485 interface allows the connection of up to 128 transceivers on the bus, that is, the RS-485 has multiple Machine communication capability, so that users can use a single RS-485 interface to easily establish a device network. (2) The transmission rate is low.5PF/M, and the terminal load resistance is 100 ohms. The Boss RS-485 interface is a de facto industry standard. This length data is mainly limited by the influence of signal distortion and noise.
When the data signal rate drops below 90Kbit/S, assuming the maximum allowable signal loss is 6dBV, the cable length is limited to 1200M. Now due to the new UART chip 16C550, the baud rate reaches 115. The condition is that RS-422 must be able to support multi-machine communication.NO.51mm), the bypass capacitance between the lines is 52. Among them, about 99% of users work in the range of 10-20% symbol distortion, so the maximum distance in actual use will be far more than 50 feet.
Can the Waterproof Connectors Manufacturers be shorted as RS-485 A, and the Z-B of RS-422 can be shorted as RS-485 B? Answer: Not necessarily. The highest data transmission rate of RS-485 is 10Mbps. The main difference is: RS-422 has 4 signal lines: two sending (Y, Z) and two receiving (A, B). RS-485 has 2 signal lines: A and B for both sending and receiving
The company pointed out that compared to other backplane products, this product has the advantages of better impedance control performance, lower crosstalk, and higher total bandwidth. This shielded, high-density, high-speed press-fit connector system is optimized for differential wire architecture.
The Impact connector system data rate exceeds 20Gbps. At present, several backplane connector systems that take into account future upgrade capabilities have been supplied in batches.3ap v3. This means that a 100Gbps channel can be realized through four groups of 25Gbps or five groups of 20Gbps.' Hnatuck pointed out,
'The most important thing is crosstalk or electrical noise.When developing interconnect systems that can support 10Gbps and higher data rates for next-generation telecommunications and data networking equipment, connector manufacturers must consider many design variables in electrical and mechanical aspects. The purpose of providing mechanical tolerance analysis is to ensure the mechanical robustness of the connector system.2 mm.
'The factors we looked at included The width and spacing of the circuit, the type of chip and silicon technology, the type of PCB material and the length of the channel. The I-Trac system with broadside coupling and skew compensation can handle speeds up to 12
the mobile Universal Screw Terminal Blocks industry is the first to adopt new standards and implement halogen-free changes. This happens when multiple connectors/sockets are connected to each other, or other components such as converters are used in the circuit. If the volume exceeds this value, at least the UL94-V1 standard must be used.
If Pluggable terminal blocks Companies any tool fails to pass, the Parallel Output tool will send a failure signal to the punching machine controller according to the flow line regulations, and the punching machine will stop running immediately. 3. The solution to the 'overspeed' problem is to carefully adjust the speed of the reel. For the visual inspection system, only this slight modification enables a simple and more reliable solution to an originally complicated problem.
The inspection results of the above-mentioned various visual inspection tools will also be collected and displayed on the operating screen; or output to other software running on the host for further statistical analysis, such as electronic data tables or statistical process control (SPC) programs. When various vision systems become more and more common, people are becoming more and more familiar with the characteristics of such inspection systems and have leaed to consider the detectability of product quality when designing new products.
3.7 milliseconds); (right image-example of partial scanning mode: acquire a partial (640x120) image within 4. . This also brings another problem to the visual inspection system. If they are mistaken as metal adhesion debris by the visual inspection system, it will lead to false detection. All pixels covered under the template (shown in single gray in the figure) should be Black; if the pins are deformed or distorted, some of these pixels will become brighter and fail to pass the template inspection. These ROIs will tell the vision system where to find the target and the information found.
In the subsequent actual production inspection, the system will measure the distance between the corresponding edge lines of each part. Electronic connectors The manufacturer hopes that the inspection system can detect various inconsistent defects such as small scratches and pinholes on the plating surface of the connector pins
Will there be better China Plug-In Terminal Blocks company in the future? HPQN, we will wait and see. · Design Principles Since Paul Neill invented the N-type connector in Bell Labs in the 1940s, the N-type connector has achieved the current excellent electrical performance through continuous improvement by engineers. The double-tooth ring disc-shaped locking piece on the male head is fastened on the inclined surface of the female head, and the end of its inteal teeth faces the female head to produce a thrust effect, so that the end faces of the outer conductor are in close contact with the gap being 0. Fig.
This design conforms to the basic principles of RF connector design, so compared to QN, SnapN The scope of application is wider. Obviously, a pair of It is unacceptable that the joint requires 100N of force. But it cannot be said that HPQN will definitely become the ultimate substitute for N.
This design utilizes the elastic force of the inteal teeth of the double-tooth ring disc-shaped locking piece and the supporting force of the female head slope, cleverly achieving the holding force and contact pressure between the male and female end faces, and can achieve very good shock resistance effect. There is a problem: the characteristic impedance of A3 at the contact point is still not continuous, and the high frequency characteristics are still poor.
Based on the performance of the current N-type connector, we believe that the design of QUICK LOCK-N should follow the following two principles: 1) Maintain the basic performance of the N-type connector, such as performance parameters, electrical properties, mechanical properties, and protection levels. In terms of manufacturing costs, SnapN has no advantage over QN, or even slightly exceeds it. The huge demand in the QL-CONNECTOR market has allowed manufacturers to launch three QL-N designs in just a few years. · HPQN (Figure 5) Following SnapN, Anoison introduced the HPQN design in 2007.
This Pluggable terminal blocks Companies is an upgraded version of the J1772 standard that was first passed in 1996, adding the latest generation of models that need to be connected to the grid to charge the vehicle's high-energy batteries. According to SAE, this is the world's first and only standard recognized by the entire industry in this field.
The standard number is 'J1772-Electric Vehicle and Plug-in Hybrid Vehicle Conductive Charging Interface', approved by the SAE Motor Vehicle Committee; it describes in detail the physical and electrical characteristics of the connector and the vehicle input interface.
The J1772 committee has begun to develop higher voltage, DC charging Detailed standards. 'The development of the J1772 standard is a successful case of cooperation between global OEMs and suppliers, the electric utility industry and the professional and technical personnel in govement departments,' he said. The J1772 standard contains a detailed description of the five-pin connector for 120V and 240V charging. Donald Anderson, director of engineering at Chrysler and chairman of the SAE Hybrid Vehicle Technical Standards Committee, called J1772 of immense importance.
Connector manufacturers that meet this standard can choose to put the 'SAE J1772' mark on their products. The mark not only provides consumers with an identification aid, but also assures buyers that the products with the mark comply with the SAE J1772 standard. Kissel also said that even if the voltage provided by each country is different (for example, China is 220V), the J1772 standard can still be used in various markets.
He also pointed out that due to the differences in the structure of electric vehicles in various countries, it is difficult to say that the J1772 standard is outside the United States. Kissel revealed that the entire development process of the standard only involved about 5,000 person-hours in meetings. During his tenure as SAE Motor Vehicle Committee Chairman from 2007 to 2009,