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消費者は常に、性能の向上、サイズの小型化、消費電力の縮小を求めています。2000年代初頭に、ビッグデータの世界におけるこうした需要が、パラレルから高速シリアルデジタル通信バスへの急激なシフトを引き起こしました。その結果、デバイスのフットプリントの著しい小型化や、データスループットの大幅な向上、電力要件の低下が実現しました。これらの機能により、SATA、USB、PCI Expressなど、消費者が現在利用している多くのテクノロジが活用できます。 図1:2000年代初頭に、市場は一般的なパラレル通信規格からシリアル規格へと移行し始めました。 メリット パラレルバスのクロックレートは、個々のクロックおよびデータラインでスキューが発生し、高速なレートでビットエラーを引き起こすため、約1~2 GHzが物理的限界とされています。高速シリアルバスは、1つの差動信号にデータとクロックの両方の情報を含め、デ
Digital Instruments generate and acquire high-speed digital waveforms for transmitting data, communicating with devices under test, or testing digital interfaces. These instruments are ideal for semiconductor characterization and production, interfacing to LVDS and TTL digital electronics, and testing the functionality of high-speed serial links.
Testing vehicle components and embedded control systems can be hazardous and time consuming. Employing simulation, HIL engineers can validate embedded controllers (ECUs) earlier in the design cycle to save time and improve test coverage. HIL tests (and XiL test methods in general) help validate embedded software on automotive ECUs using simulation and modeling techniques to shorten test times and
「ビジョン」では、NIがテストとテクノロジの世界で次に何が起こるかをどのように認識しているかについて紹介します。 すべての記事を表示 LabVIEWは、今なおテストで重要な役割を果たしています。NIがコア技術、コミュニティ、統合への投資を行ったことにより、テスト時間の短縮や効率の向上が実現し、新しい機能の提供が可能になりました。
Safety practices are becoming more regulated as industries adopt a standardized set of practices for designing and testing products. ISO 26262 is a functional safety standard for critical electrical and electronic (E/E) systems in automotive components. ISO 26262 is a derivative of IEC 61508, the generic functional safety standard for electrical and electronic systems. This paper covers key parts
CAN was first created for automotive use, so its most common application is in-vehicle electronic networking. However, as other industries have realized the dependability and advantages of CAN over the past 20 years, they have adopted the bus for a wide variety of applications. Railway applications such as streetcars, trams, undergrounds, light railways, and long-distance trains incorporate CAN. Y
802.11ax, also called High-Efficiency Wireless (HEW), has the challenging goal of improving the average throughput per user by a factor of at least 4X in dense user environments. This new standard focuses on implementing mechanisms to serve more users a consistent and reliable stream of data (average throughput) in the presence of many other users. This paper will explore the new mechanisms that w
See all Driver Software Downloads NI-DAQmx Provides support for NI data acquisition and signal conditioning devices. NI-VISA Provides support for Ethernet, GPIB, serial, USB, and other types of instruments. NI-488.2 Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports.
Faster 5G Wideband RF Design Validation Engineers working on wideband 5G device designs must validate performance over more frequency bands in traditional cellular frequency ranges below 6 GHz [frequency range 1 (FR1)], and in challenging millimeter wave conditions above 24 GHz [frequency range 2 (FR2)]. New 5G devices must address carrier-aggregated scenarios, support increasingly dense modulatio
Proportional-Integral-Derivative (PID) control is the most common control algorithm used in industry and has been universally accepted in industrial control. The popularity of PID controllers can be attributed partly to their robust performance in a wide range of operating conditions and partly to their functional simplicity, which allows engineers to operate them in a simple, straightforward mann
Electric current is the flow of electric charge and is measured with an ammeter. The SI unit for measuring electric current is the ampere (A), which is equal to a flow of one coulomb of charge per second. While there are several methods of measuring current, the most common method is to perform an indirect measurement of the voltage across a precision resistor and using Ohm’s law to measure the cu
EtherCAT (Ethernet Control Automation Technology) is a high-performance, industrial communication protocol for deterministic Ethernet. It extends the IEEE 802.3 Ethernet standard to transfer data with predictable timing and precise synchronization. Managed by the EtherCAT Technology Group, this open standard has been published as part of the IEC 61158 and is commonly used in applications such as m
A multicore system is a single-processor CPU that contains two or more cores, with each core housing independent microprocessors. A multicore microprocessor performs multiprocessing in a single physical package. Multicore systems share computing resources that are often duplicated in multiprocessor systems, such as the L2 cache and front-side bus. Multicore systems provide performance that is simi
This document provides information to help you understand basic strain concepts, how strain gages work, and how to select the right configuration type. After you decide on your sensors, you can consider the required hardware and software to properly condition, acquire, and visualize strain measurements. You can also consider any extra signal conditioning you may need. What is Strain? In mechanical
The Fourier transform can be powerful in understanding everyday signals and troubleshooting errors in signals. Although the Fourier transform is a complicated mathematical function, it isn’t a complicated concept to understand and relate to your measured signals. Essentially, it takes a signal and breaks it down into sine waves of different amplitudes and frequencies. Let’s take a deeper look at w
With emerging instrument control standards based on communications buses such as USB and LAN including LXI, developers face the question of how to integrate these instruments into their systems. Stand-alone instrumentation has continued to evolve by taking advantage of newer buses and standards such as USB and LXI, giving users a variety of instrumentation connectivity, each with its own strengths
すべてのドライバソフトウェアのダウンロードを見る NI-DAQmx NIの集録および信号調整デバイスをサポートします。 NI-VISA Ethernet、GPIB、シリアル、USBおよびその他のタイプの計測器をサポートします。 NI-488.2 NI GPIBコントローラおよびGPIBポートを備えたNI組込コントローラをサポートします。
The National Instruments SPICE Simulation Fundamentals Series is your free resource on the Internet for learning about circuit simulation. The series is a set of tutorials and information on SPICE simulation, OrCAD pSPICE simulation, SPICE modeling, and other concepts in circuit simulation. The series is divided among a number of in-depth detailed articles that offer HOW TO information on the impo
The rate of innovation in desktop computers is mind-boggling. Following Moore’s law, processing speeds have doubled every 18 months since the invention of the integrated circuit. Software makers create new products to support the latest advances in processing speeds, memory size, and hard disk capacity, while hardware vendors release new devices and technologies to keep up with the demands of the
Cellular technology evolves quickly—5G rollouts and enhancements are progressing in parallel with early 6G research. Engineers are tasked with innovating and bringing new products to market with more capability on tight timelines. New use cases and demand for higher data rates as well as better spectral and energy efficiency add design complexity. From research and prototyping to high-speed automa
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