ADI provides a series of industrial automation, energy and instrumentation applications to help customers with simplifying system integration. These applications cover motor control, electromagnetic flow meter application, energy storage system, Li-Ion battery formation, precision measurement, gas detector, chemical analysis and more.
Instrumentation & Measurement
A source measure unit (SMU) is widely used in the field of test and measurement. Examples of where it is used include I-V characteristic curve tests for semiconductors, parameter tests for various nonlinear devices or materials, and charge or discharge tests for various types of batteries. SMUs can operate in four quadrants of a V/I coordinate axis and can measure another type of signal while outputting one. The functions that used to be completed by multiple instruments can be now realized by a single SMU. Many well proven SMU products, commonly built with discrete devices, have been put on the market. These SMUs can realize a variety of current /voltage output combinations and accurate measurement, with the disadvantages of a complex structure and high cost. This article introduces an SMU reference design that is composed of an AD5522 master controller plus voltage/current amplifier stage.
ADI's MEMS multi-axis accelerometer products is used to design a high-precision tilt angle measurement solution. For power and communication tower applications, the solution can provide accuracy of ±0.05° within 30°. The whole scheme includes calibration and alignment algorithms, as well as low-power design, which can be improved according to customer requirements.
For water quality monitor, Analog Devices offers a highly integrated multiparameter measurement solution based on a powerful on-chip system that controls and measures electrochemical sensors and biosensors. With an integrated, ultra-low power ARM® CortexTM-M3 processor and multichannel analog front end, the on-chip product can simultaneously connect multiple electrodes and cyclically measure multiple parameters via a programming state machine. It can realize the measurements of routine five parameters integrated into a single platform, including temperature (TEM), dissolved oxygen (DO), electrical conductivity (EC), pH, and turbidity.
Fault circuit indicators (FCIs) are an important part of energy harvesting, power management, processor, AFE circuit, and communication interface devices. Smart energy harvesting and management, along with ultralow power consumption, are particularly critical to new designs. ADI highly integrated solutions are significantly helpful for a compact layout and reducing design complexity, while industry-leading, ultralow power performance can help reach the historically lowest power consumption over the full system signal chain.
Analog Devices offers a complete motor control solutions portfolio including data converters, amplifiers, embedded processors, iCoupler® digital isolators, power management devices and the Real-time Ethernet solution. Enhanced performance and system integration enable innovative design topologies, which add value and help differentiate our customers' servo control systems.ADI servo drive solutions are associated with attaining the highest performance and accuracy in motion systems. These systems operates with high precision and where control of absolute position, along with optimum torque alignment, is required. Analog Devices offers a complete solution covering all key components in the signal chain.
Due to strict robustness requirements, channel-to-channel isolation is a common requirement for analog input modules in many applications such as gas and oil plants and power plants. This is especially true for thermocouple/RTD modules, whose small signals are susceptible to noise and where the bare sensing element may be exposed to high common-mode voltages. This article will outline a high density, easy to design, channel-to-channel isolation solution for analog input modules. Test results are included and verified that a 16-channel, 2.5 kV rms channel-to-channel isolation demo could easily pass the EN55022 class B standard.
Among all the parts used in electronic devices, the isolation component is undoubtedly one of the most important parts. This is especially the case in high voltage and high power applications. In variable frequency drive (VFD) and power supply designs, isolation components are typically used in both functional and safety isolation circuits to separate the low voltage control circuit from the high voltage power part, and keep interface circuits separate from circuits that are dangerous to touch.
Wireless sensor networks (WSNs) consist of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, humidity, motion, or pollutants. These sensors cooperatively pass their data through the network to a main location, the base station. Modern WSNs are bidirectional, enabling users to control the activity of the sensors.
WSNs are built of "nodes," from as little as a few to potentially thousands, with each node connected to one or more sensors. Each such sensor network node typically has several parts: a radiotransceiver with an internal antenna or connection to an external antenna, a microcontroller, an electronic circuit for interfacing with the sensors, and an energy source, usually a battery or an embedded form of energy harvesting.
Leverage ADI's amplifier, data conversion, signal processing, communications and power technology and expertise to high resolution, low noise industry Electromagnetic Flow Meter systems.
ADI offers market tailored solutions to aid in the design process. These solutions feature our industry-leading technologies and offer a range of design options - from implementation of discrete components to fully integrated solutions, and everything in between.
Most engineers have used oscilloscopes and waveform generators in their work. The former are used to acquire signals, while the latter are used to generate signals. They are a pair of handy tools for engineers. Here we are introducing the complete solution for signal generators. In analog signal or analog and digital mixed-mode signal processing applications, arbitrary waveform generators (AWG) are very popular and versatile.
RF and microwave ICs are widely used in electronic test and measurement instruments, such as spectrum analyzers, network analyzers, signal generators, and communication testers. As wireless communications, such as 4 Gbps/4 Gbps and IoT become more and more popular, the demand for test bench technology also increases. In this article, we will talk about how ADI's products fit in the spectrum/signal analyzer and signal synthesis signal chains.
Energy consumption is a common problem faced by the world, and many industries are working to achieve safer, cleaner, efficient, low cost power solutions to overcome it. The increasing popularity of hybrid and electric vehicles, solar PV energy, and wind energy is a result of this trend. All of these solutions share one trait in common: Li-Ion batteries. Because of the rapid growth of these fields, Li-Ion batteries will play a more important role in energy conservation.
Toxic gases exist in many industrial environments, like oil wells, mining, plastics manufacturing, paper making, and so on. With the increasing concerns of personal safety, the demand for low power portable toxic gas detectors is rapidly increasing so that workers can carry them in the field or they can be installed in the field. Most portable low power toxic gas detectors are based on electrochemical sensors covering most common toxic gases in industrial environments, like carbon monoxide (CO), sulfur dioxide (SO2), hydrogen sulfide (H2S), and nitrogen dioxide (NO2). Compared with other methods of toxic gas detection, electrochemical sensors offer the advantage of low power consumption, low cross sensitivity, and good long-term stability, which is very suitable for batterypowered portable applications.
This is the second article for spectrophotometer applications. In the first article, "ADI Dual Beam Spectrophotometer Solution," we discuss the applications, theory of operation, circuit architecture, and design considerations for spectrophotometers. This article introduces related, new ADI demo systems and products.
This is the second article for pH meter and conductivity meter applications. In the first article, water analysis applications, a theory of operation, circuit architecture, and design considerations were discussed. In this article a related Analog Devices demo system will be introduced. For the first article, please refer to the link to the APM (Application Per Month) listed at the end of this article.
As we know, the typical industry ambient temperature is −40°C to +85°C. However, there are some harsh industrial environments where the ambient temperature exceeds this range, such as in oil and gas exploration, or other heavy industrial activities. Because these temperatures can exceed more than 150°C, the following ADI high temperature products were designed for environments in the 175°C to 210°C range.
Non-destructive testing (NDT) is a wide group of analysis techniques used in science and industry to evaluate the properties of a material, component, or system without causing damage or permanent alteration. Because it is a valuable technique that can save both money and time, it is widely used in product evaluation, troubleshooting, and research in many fields, such as mechanical engineering, electrical engineering, and civil engineering. Common NDT methods include ultrasonic testing, magnetic particle inspection, liquid penetrant testing, radiographic imaging, remote visual inspection, and eddy-current testing. This article will focus on ultrasonic test equipment, which is the most popular instrument in NDT and can also be used to measure thickness.
Spectrum analyzers are used to measure the magnitude of the input signal versus frequency within the full frequency range of the instrument. Distortion, harmonics, bandwidth, and other spectral components of a signal can be observed by analyzing the spectrum of electrical signals that are not easily detectable in time domain waveforms. These parameters are useful to characterize electronic devices, such as wireless transmitters. Spectrum analyzers are also used in electromagnetic interference (EMI) compliance testing.
RF signal sources are used to create test waveforms at radio frequencies. Some of their common applications are to test if a new radio platform works or if the handsets coming off a production line are performing as they should. RF signal sources can be used to create simple waveforms such as sine waves or complex, modulated waveforms that look like the return echoes from ultrasound or sonar equipment.
ADI solar PV inverters solution provides precision measurement of current and voltage through highly accurate converters and amplifiers. Enabling power networks and smart grids through the use of high performance processing technology engineered with robustness and reliability. All of these can reduce time to market, and differentiated end equipment. ADI also provides the reference design/demo board/technical material/technical supports for this solution.
In the modern smart grid system, distribution automation systems will update to increasingly more intelligent electronic devices, which are used to monitor power quality and quickly isolate any fault from affecting the overall grid operation. Smart terminals, including DTU/FTU/TTU, are growing in use and changing grid architecture. Designing these devices requires processors, multichannel ADCs, signal condition circuits, a power supply, and communication interfaces.Robustness and cost became the main sources of pressure for equipment providers. Analog Devices, as the worldwide technical leader of mixed-signal processing, is the major electronic system solution supplier in power distribution systems and will give the solutions.
ADI, with its excellent system grade signal processing experience and products of diverse variety, offers developers solutions for energy storage solution. ADI solutions offer a series of products in related applications, such as battery monitor, gate drivers, processors, signal isolation products, etc.
In the end of 2016, The State Grid Corporation of China (SGCC) proposed an overall principle: "the automated terminal DTUs/FTUs of the distribution network must take into account the requirements of combining primary and secondary distribution, and must consider replacing traditional electromagnetic transformers with electronic transformers." ADI released a set of chip-scale signal links to satisfy these new applications.
As a system hardware design engineer, do you ever have trouble selecting high-cost performance isolation solutions that include multiple power output? Under most circumstances, triple isolated outputs of +15V, -15V, and +5V need to make use of operational amplifiers; both analog switches and multiplexers (MUX) and analog driver outputs (+/-10V, +/-20mA) require utilization of triple isolated outputs. Furthermore, system isolation is often a crucial guarantee in order to increase the reliability of industrial products. If you don't process any professional power design experience, especially in transformer spec design, your choice of preference may be to purchase isolated power modules, which are small in size and easy-to-use. However, there are very few types of isolated power modules in the market that directly support such multiple outputs as +/-15V and +5V, and those that do are overall quite expensive.
Comprised of power supplies, CPUs, and multiple analog and digital I/O modules, a PLC system controls, actuates, and monitors complex machine variables. The PLC is designed for multiple inputs and outputs arrangement, extended temperature ranges, immunity to electrical noise, and resistance to vibration and impact.
A PLC system comprises power supplies, control and communication modules, and a variety of analog-input, analog-output, digital-input, and digital-output modules.
With its profound experience in optimizing system grade signal processing and diverse array of products, ADI is able to offer developers solutions designed exclusively for commercial aviation. ADI solutions include access to a series of related applications, such as aircraft navigation subsystems, communication subsystems, radar and monitoring subsystems, power and propulsion subsystems, and cabin entertainment subsystems.
Radar, originally developed during World War II, has myriad applications today, such as defense, civilian (air traffic control and weather), and automotive. ADI provides Classic Radar Signal Chain (Super-Heterodyne Architectures) and Next-Generation Radar Signal Chain (Direct RF and Higher IF Sampling). Meanwhile, ADI provides the whole signal chain chipsets for 24 GHz radar, which can be used in automotive ADAS and industrial applications.
ADI has a team and business unit focused on supporting the emerging unmanned systems market. ADI's product portfolio covers airborne, terrestrial, and marine unmanned vehicles ranging from small consumer up through large long endurance systems. The ADI portfolio focuses on five major area to support the unmanned systems business: ADAHRS, Transceivers, Payloads, Safety and Surveillance, Airframe. Aside from the products above, ADI's broad portfolio supports a wide base of products including control stations and data acquisition.
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