Development and Technology of Direct Digital Radiography Systems (DR) Based on the composition materials and working principles of the detectors, DR is mainly divided into three major technologies: CCD, one-dimensional scanning, and amorphous flat panels (amorphous selenium, amorphous silicon + cesium iodide / amorphous silicon + gadolinium oxide). 1. CCD: Due to physical limitations, experts … Read more
In the global PLC (Programmable Logic Controller) market, giants such as Siemens, Mitsubishi Electric, Omron, Schneider Electric, and ABB have long held dominant positions. Among them, the market leader in 2023 is undoubtedly Siemens, which holds a commanding 40% market share and achieved a revenue of 77.8 billion euros, a year-on-year increase of 11%. Following … Read more
RS232 and RS485 are common interfaces in low-voltage applications, but some people always struggle to distinguish their differences. Below is an analysis of the RS232 and RS485 interfaces.Due to the early emergence of the RS232 interface standard, it inevitably has some shortcomings, mainly including the following four points:(1) The signal voltage levels of the interface … Read more
Contact WeChat: x274529 Murata Manufacturing recently announced the coexistence of the Sigfox protocol stack and the LoRa protocol stack on its Type ABZ LoRaWAN module. With this feature, Murata has expanded its Type ABZ module to provide global capabilities for both LoRa and Sigfox on a single hardware platform. This module allows users to freely … Read more
Consider a DC power supply with an output socket interface that has three pins: positive, negative, and ground. Accordingly, the load’s plug should also have three pins corresponding to the power supply side to correctly obtain power supply. Note that there are three essential conditions that must be met: The first is that the shape, … Read more
– RS485: It is a physical layer electrical standard that specifies the electrical characteristics of data transmission, signal levels, transmission distances, and connection methods. It uses differential signaling for transmission, has strong anti-interference capabilities, and can achieve half-duplex communication between multiple devices. It is commonly used for long-distance data transmission in industrial environments. – Modbus: … Read more
Follow+Star Public Account Number, don’t miss out on exciting content In recent years, starting with Apple’s release of theAirPods, the true wireless headset market has seen rapid growth, and theTWS/OWS headset market has also experienced significant sales increases. The charging cases that accompanyTWS headsets have developed rapidly alongside the headsets. This article introduces a design … Read more
Click the above to follow OLEDindustry! Recommended Reading OLED has sparked an “investment boom” in AOI detection, this article thoroughly analyzes the principles, market, and fields… Critical in the flexible OLED process! Detailed explanation of the flexible substrate preparation process and parameters [Interpretation] The market, classification, and current status of flexible FPC under the trend … Read more
When a microcontroller or FPGA sends SPI control signals to a phase-locked loop (PLL) chip, it often requires a series connection of a 22 ohm or 33 ohm resistor. What is the reasoning behind this? Impedance discontinuities can cause electromagnetic wave reflections, which in turn can lead to signal distortion. Therefore, impedance matching is often … Read more
SD NAND and SPI NAND are like the “sports car” and “bicycle” of the storage world—each has its own applicable scenarios. 1. Interface Method SD NAND: Like the SD card in a mobile phone, it uses a high-speed parallel interface (for example, transferring data with 4 data lines simultaneously), which is fast and comes with … Read more