Tag Archive: real time

Capturing and Simulating Rotational and Jitter Angle-based Measurements

Capturing and simulating the high-speed rotations involved in automated machines and test rigs often plays a major role in industrial automotive applications. Common requirements are accurate speed measurement over a large range of operation, detection of speed changes, capturing jitter, jitter simulation, and angle-based data acquisition. The Applications Specialists at CAS DataLoggers have put together this article to present some practical approaches to accomplish these tasks using an ADwin data acquisition system. Read more on our White Papers page.

Automated Pendulum Demo Shows ADwin’s Microsecond Response Time

ADwin-Gold Data Acquisition System

Automated pendulum demo using the Adwin-Gold data acquisition systemCAS DataLoggers Sales Manager Pete Martin impressed attendees with a unique ADwin demonstration at a successful exhibition at the 2012 Control System Integrators Association (CSIA) Executive Conference in Scottsdale, Arizona. This demo utilizes an interesting program highlighting how to achieve microsecond response times with a measurement and control system while operating in the Microsoft Windows environment, employing an inverted pendulum, which is highly unstable unlike the balance of a regular pendulum. Read more on our White Papers page.

Production Test: Monitoring a Metal Stamping Press

ADwin-Light-16 Real Time Data Acquisition System

Monitoring a Metal Stamping PressCAS DataLoggers recently provided the real-time data acquisition solution for an automotive manufacturer using metal stamping presses to shape their torque converters. Stamping was used to create a series of indentations that held metal vanes used to transmit the power from the engine to the transmission though a fluid. Hydraulic cylinders were used to force a hardened punch into the metal which was displaced into a corresponding die, creating 136 separate indentations. However, the punches, being extremely hard, were occasionally subject to breakage. In this automated environment, where one part was turned out every 45 seconds, many defective parts could be fabricated before an operator’s visual inspection detected that the indentations weren’t properly formed and that a punch had failed. Read more on our applications note page.

Preventative Maintenance Monitoring in a Hydropower Plant

Delphin TopMessage DAQ System for Vibration and Process Monitoring

Hydropower PlantCAS DataLoggers recently provided the data acquisition solution for a hydropower plant setting up hydro turbine condition monitoring for preventative maintenance. Personnel worked without any clear indications of the hydro turbine’s status for detection of developing equipment problems that could help safeguard against critical damage. Therefore management needed to monitor and analyze various plant parameters including shaft vibration measurement, bearing vibration measurement, generator air gap measurement, and plant process signals including mV, mA, RTD, TC, pulse, PLC communication data, etc. Read more on our applications note page.

Material Testing: Monitoring Metal Fatigue Crack Growth

ADwin-Gold Real-Time Data Acquisition System
CHESTERLAND OH—March 5, 2012

CAS DataLoggers recently supplied the data acquisition and control solution for a prominent manufacturer of material used in the aviation and aerospace industries. Characterizing the growth rate of cracks in metal samples under repeated cyclical stress was critical to the customer: typically, a material test system incorporating a closed loop servo-hydraulic system was employed to apply a repetitive stress to the sample while the growth rate was monitored by one of several methods. Variable amplitude-loading, conventional closed-loop servohydraulic systems using simple PID control were employed but became very difficult to tune to handle varying test conditions. Read the entire article on our applications note page.

Test Automation for Shock Absorber Production

ADwin Pro System for Real-Time Modular Data Acquisition
CHESTERLAND OH—February 13, 2012

CAS DataLoggers recently provided the modular data acquisition and control solution for an automotive manufacturer using test systems to determine the dynamic characteristics and parameters of their line of shock absorbers. On the factory’s production lines, test benches ensured a higher level of quality through individual component testing. Read the entire article on our applications note page.

Modular ADwin Pro-II Card with Local Processing

ADwin Pro-II (Aln-32/18 D) for Real-Time Modular Data Acquisition
CHESTERLAND OH—February 9, 2012

CAS DataLoggers has teamed up with bestselling manufacturer Jager to announce the Pro II-AIn-32/18-D-TiCo card available for ADwin-Pro-II modular data acquisition and control systems. The card’s TiCo (Timing Controller) co-processor offloads tasks from the main processor, enabling pre-processing of the local results, implementation of filters, and statistical processing and triggering, which improves system throughput. ADwin’s high-performance real-time systems are capable of parallel, individually-controlled processes while running independently of a PC’s operating system to provide deterministic operation with response times of 1 usec. or less. Read the entire article on our product announcement page.

New Analog Input Module Available for ADwin-Pro-II

CAS DataLoggers has partnered with sophisticated manufacturer ADwin to announce the new ADwin-Pro-AIn-F card for ADwin-Pro-II real-time data acquisition and control systems. 4 versions of the card are available, offering users 4 analog differential inputs, 4 analog isolated inputs, 8 analog differential inputs, or 8 analog isolated inputs, as desired. Read the whole story here.

CAS and ADwin Introduce Software Upgrade Supporting 64-bit Win7

For ADwin Data Acquisition and Control Systems

CHESTERLAND OH—December 13, 2011

CAS DataLoggers in cooperation with ADwin is pleased to announce the latest release of software for ADwin real-time data acquisition and control systems. This new software, ADwin-CD, provides enhanced support for both 32- and 64-bit versions of Windows 7 in addition to older operating systems including NT 4.0, Win 2000, Win XP and Vista. The new upgrade supports Ethernet, USB and Link interfaces for ADwin systems and includes Windows drivers, 32-bit and 64 DLLs, and ActiveX library along with ADbasic 5, ADtools and ADlog. Drivers and examples are also provided to interface ADwin systems with many popular programming environments including C, Delphi, DIAdem, LabView, Testpoint, VisualBasic, VisualStudio.NET, VEE, Matlab, DASYlab, Scilab and Python. The new upgrade is currently available for download from the manufacturer’s website at http://www.dataloggerinc.com/downloads/adwin.php.

The new improvements include the addition of a USB driver for 64-bit Windows operating systems and an enlargement of the “Managing Projects” feature in the ADbasic 5 and TiCoBasic user interface: now files of any type can be added to a project, and diverse settings can be saved in the project file. ADtest has also been upgraded so that calibration data can be backed up in files and restored.
The powerful line of ADwin data acquisition and control systems offers users high performance in real-time for demanding applications including testing automotive components, sensors and ECU’s, electrical component test, control of servohydraulic systems, motion control, laser and ebeam control, signal generation and high speed, synchronized data acquisition. These sophisticated systems feature an optimized architecture to provide precise, deterministic operation with response times measured in microseconds. A high-performance local DSP controller manages the data acquisition hardware and works in cooperation with a PC via a shared memory interface that provides transparent access to data and control variables. The ADwin system is partitioned to share the load so that its DSP controls all time- critical tasks, leaving the PC free to handle the user interface, data presentation and data storage.

ADwin devices also provide users with a broad range of capabilities for high speed data acquisition and control including analog inputs and outputs, digital inputs and outputs, counters, CANbus, serial and other industrial interfaces. These advanced devices are available in 3 models: the ADwin-L16 featuring 8 analog inputs, the ADwin-Gold/Gold II featuring 16 analog inputs and the ADwin-Pro/Pro II Series featuring a modular form factor with plug-in modules allowing up to 480 analog or digital inputs all in a single chassis. ADwin systems also offer a variety of other I/O options including CANbus, SSI, Profibus/Fieldbus, RS-232/485, and signal conditioner modules. Furthermore, these systems are freely programmable in ADbasic to tackle even the most complex projects for data acquisition, machine control, test stand automation or research.

Check out a product overview page for ADwin systems here.

For more information on the new software upgrade for ADwin data acquisition and control systems, other data acquisition solutions, or to find the ideal solution for your application-specific needs, contact a CAS Data Logger Applications Specialist at (800) 956-4437 or visit the website at www.DataLoggerInc.com.

Contact Information:
CAS DataLoggers, Inc.
12628 Chillicothe Road
Chesterland, Ohio 44026
(440) 729-2570
(800) 956-4437

Cold Atom Quantum Physics Experiment

Utilizing Modular Real Time Data Acquisition and Control
CHESTERLAND OH—December 7, 2011

CAS DataLoggers recently provided the data acquisition and control solution for an associate professor of physics at a major university running an experiment producing ultracold quantum gases containing either bosons or fermions. The experiment took place under ultra-high vacuum inside a pyrex glass cell. Researchers collected the atoms in a magneto-optical trap (MOT) which consisted of 6 laser beams for each atomic species and a magnetic trap produced by two external coils with counter propagating current. While the MOT was on, bright purple LEDs caused light-assisted desorption of atoms from the walls of the cell so that they could be captured in the MOT. After a brief moment of optical molasses (with the lasers on but no magnetic field), the atoms were gently transported vertically about 5 cm to within 200 μm of a magnetic chip trap by changing the shape of the magnetic field with more coils. Current passing through a wire on the chip, along with external coils, was used to tightly trap the atoms. Radio frequency signals passed through another wire on the chip, which changed the shape of the trap and allowed the hottest atoms to escape, thus lowering the average energy of the atoms. This evaporative cooling could produce quantum degenerate gases, either Bose-Einstein condensates or degenerate fermions. To undertake this incredibly demanding application, the physics department needed a modular data acquisition system capable of highly-accurate measurements in real-time and which offered intuitive software with powerful graphing and display capabilities.

The research team installed an ADwin-Pro Modular Real Time Data Acquisition and Control System to provide them with precise timing and deterministic control of the experiment’s processes. The ADwin system’s analog channels were used to control current in the coils or wires on the chip and the frequencies and amplitudes of the lasers. The analog output was programmed to step, ramp, or follow an S-shaped curve as desired. Easy programming of the ADwin Pro’s analog channels provided a simple way to control many devices in the lab. The digital channels were used to open shutters, trigger frequency sources, flip polarity of current sources, and trigger cameras. Several digital channels were also used to serially program frequency sources. Signals from the digital channels went to a digital buffer consisting of optical isolators to prevent ground loops from forming in the system.

For some experiments, the researchers chose to transfer these cold atoms from the magnetic chip trap to an optical dipole trap – crossed laser beams which caught the atoms as the chip trap was turned off. This purely optical trap gave experimenters the freedom to adjust the external magnetic field as they pleased, giving them the ability to address Feshbach resonances and to tune the interactions between the atoms. To image the atoms at the end of an experiment, the trap was turned off, the cloud expanded, and a pulse of laser light cast a shadow of the atoms onto a CCD camera. From the size, shape and density of the shadow, the team could determine the cloud’s physical properties.

Every aspect of this experiment required the precise control provided by the ADwin-Pro system. Voltage controlled acousto-optical modulators altered the frequency and amplitude of the laser light, while seven external coils as well as wires on the chip created the magnetic field. The way these magnetic fields switched on and off were important to keep the atoms cold. The team used voltage-controlled power supplies to control the current through these coils and wires. Other equipment including radio and microwave frequency sources, shutters and cameras required well-timed triggers.

By means of the configurable ADTools software, researchers were able to display the experiment’s real-time data graphically or numerically, to visualize process sequencings, or to set input values via potentiometers, sliders or push buttons. Additionally, ADtools constantly provided researchers with the current status of their ADwin system resources. The ADwin software environment could be used under Windows (2000/XP/Vista/Win7) and Linux, or as a stand-alone data acquisition system. Also, ADwin offered drivers for many of the popular programming environments including Visual Basic, Visual C/C++, LabVIEW/LabWindows, TestPoint and others.

The university’s physics department benefitted in several ways following installation of the ADwin-Pro Modular Real Time Data Acquisition and Control System. Using up to 480 analog/digital I/O inputs and high-performance DSP processor, the ADwin-Pro system performed real-time measurements at extremely high accuracy and also performed all the necessary control functions for the experiment. The system’s modular design offered researchers the flexibility to configure the cards as desired and to add more hardware as needed. Additionally, ADwin’s intuitive ADbasic and ADTools software added visualization, graphing and display features and ensured that the experiment continued uninterrupted with continual status of system resources.

Check out the Adwin-Pro product page here.

For further information on the ADwin-Pro Modular Real Time Data Acquisition and Control System, other data acquisition devices from ADwin, or to find the ideal solution for your application-specific needs, contact a CAS Data Logger Applications Specialist at (800) 956-4437 or visit the website at www.DataLoggerInc.com.

Contact Information:
CAS DataLoggers, Inc.
12628 Chillicothe Road
Chesterland, Ohio 44026
(440) 729-2570
(800) 956-4437