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Entries for the 'DAQ Hardware' Category

Comparing Ethernet and USB cDAQs for Control Applications
Eric West

Comparing Ethernet and USB cDAQs for Control Applications

DMC recently completed a project that involved controlling an applied load using a hydraulic cylinder. Ramping the load at a controlled rate required a fast control loop with analog feedback from a load cell. The speed of the hydraulic cylinder was determined by a proportional valve controlled by an analog output from DMC’s control system. Based on other requirements of the software, DMC chose a PC-based control system using National Instruments hardware. The customer wanted the control...

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Repairing an NI USB-6351 X-Series DAQ
Johnny Sun

Repairing an NI USB-6351 X-Series DAQ

Recently, I’ve needed to do some proof of concept testing for a LabVIEW-based project. The only special I/O requirement for my prototype was a +/- 10V analog output that is capable of sourcing at least 1mA of current. The good news was that DMC owned just the piece of hardware: an NI USB-6351 X-Series DAQ. The bad news was that it was handed to me with the caveat that it doesn’t turn on and may or may not smell bad when plugged in. Undeterred, I resolved to resurrect our $1500 out-of...

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DMC featured in ISA InTech Magazine
Darren Jones

DMC featured in ISA InTech Magazine

The International Society of Automation (ISA) featured DMC’s pediatric thermoregulatory test chamber project in InTech Magazine. The article, entitled “Pediatric Hospital Works with CSIA Member to Develop Unique Test Chamber,” highlights Lurie Children’s Hospital’s collaboration with CSIA-certified DMC for this one-of-a-kind solution. The piece details the design and implementation of a thermoregulatory chamber that DMC engineers collaborated with Lurie...

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Engineering Meets Pediatric Medicine at Lurie Children's Hospital
Darren Jones

Engineering Meets Pediatric Medicine at Lurie Children's Hospital

Being an engineer means you have unique skills to contribute to the world. These contributions can include improving quality of products, increasing efficiency, and generally allowing workers and companies to be more successful in their goals.  A recent project at DMC brought this social benefit even closer to home with the opportunity to work with the Ann & Robert H. Lurie Children's Hospital of Chicago.  DMC was approached with a very special need—to develop the w...

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National Instruments Real-Time Target Asset Management
Patrick Corcoran

National Instruments Real-Time Target Asset Management

As the popularity of modular instruments grow in R&D development spaces, National Instruments technology, particularly Real-Time and FPGA hardware, is becoming more and more common in volume test, manufacturing, and control applications. As the number of hardware products grow in a given deployment, so too does the task of asset management. The aim of this discussion is to outline key questions that will be helpful in selecting and asset management solution for projects involving multiple Na...

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NI Week 2012 - Data Acquisition Done Right - Happy .NET Day!
Danny Budzinski

NI Week 2012 - Data Acquisition Done Right - Happy .NET Day!

The third day of NI Week 2012 proved the age old adage that the third day of a conference is always the best. If you read my first NI Week post, you probably knew that this was coming, and even though there were only 2 sessions that really appealed to me today, both were focused on using NI with .NET. Anyone with a significant .NET background who has also worked with LabVIEW has probably stumbled on NI’s .NET tool, Measurement Studio. I know to some that NI providing .NET tools sounds k...

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It's here!!  NIweek 2011
Darren Jones

It's here!! NIweek 2011

It's great to be back in Austin Texas for the annual National Instruments NIweek conference. Today is the first official day of the conference, where the largest ever audience (3300 people!) will be introduced to the latest products, trends, markets, and emerging technologies. We kicked things off at Alliance Day yesterday, where the day's keynote and sessions are dedicated to NI's partner network.  DMC has been a part of the NI Alliance Partner network for close to 15 yea...

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DMC exhibiting at the National Instruments Technical Symposium
Darren Jones

DMC exhibiting at the National Instruments Technical Symposium

DMC will join leading companies to host the National Instruments Technical Symposium that builds on the success of NIWeek, the worldwide virtual instrumentation conference and exhibition held annually in Austin, Texas, where the company is headquartered. NIWeek 2010 concluded in August with attendance of more than 2,500 people, who participated in hands-on training, interactive technical sessions, summits, exhibitions and workshops. National Instruments designed the NI Technical Symposium to del...

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Battery Management System (BMS) Testing Strategies
Brent Hoerman

Battery Management System (BMS) Testing Strategies

Hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs) are bringing new test and validation challenges to the automotive industry as we rapidly continue the long-awaited cross-over from internal combustion engines to fully electric drive trains. One of the bigger test and validation challenges out there involves testing the battery management system (BMS). (Background of PHEV automotive battery packs and battery management systems) Modern BMS systems for PHEV applicat...

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BMS Test Stand Towers Over the Competition
Jesse Batsche

BMS Test Stand Towers Over the Competition

DMC recently developed a completely automated test system specifically designed for Battery Management System (BMS) validation, verification, environmental, and Hardware in the loop (HWIL/HIL) testing. The system was developed for a tier-one automotive supplier developing lithium ion battery packs for Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs). Check out the Battery Management System Test Stand Case Study for a full description of the system. Here are a few high res p...

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Video Demonstration of BMS Test Stand Basic Capabilities
Brent Hoerman

Video Demonstration of BMS Test Stand Basic Capabilities

Recently DMC put together another BMS Validation Test Stand, with 100+ Battery Cell Simulation Channels, 50 Temperature Sensor Simulation Channels, and a variety of other IO channels for testing the BMS inside a PHEV battery pack. Before we shipped this tester, we wanted to demonstrate using the system to test a BMS in manual mode, to illustrate the basic capabilities of the battery cell simulators, software, and other electronics. However, the automotive BMS boards we have designed this syst...

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Personal NI Week Highlights
Brent Hoerman

Personal NI Week Highlights

So I've been using National Instruments hardware now for 15 years and programming in LabVIEW for 10.  First, that makes me feel pretty old.  Second, why is it that this is the first year I have gone to NI week?  I don't know.  But I finally understand why everyone else makes such a big deal about attending. It is a great time.  You get to network with a bunch of great people. And you can quickly get up to speed on new hardware, software features, and the ...

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NIWeek 2010!
Darren Jones

NIWeek 2010!

DMC is hitting the ground running at NIWeek 2010.  "It's Time".  This is the theme of the keynote of the first official day of NIWeek.  Time to develop, real-time control, timing for data synchronization, time to market,  everything that involves time, and how NI products can help. This is the first official day of the conference, but the second for DMC, as again this year we've come down to Austin for the first day open to Alliance Members only, ...

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LabVIEW Data Storage: Overview of TDMS
Jody Koplo

LabVIEW Data Storage: Overview of TDMS

This is part one of my blog series detailing the use and optimization of the TDMS format. Here is a table of contents for all blogs in this series: LabVIEW Data Storage: Overview of TDMS LabVIEW Data Storage: TDMS Performance Tweaking LabVIEW Data Storage: TDMS Usage Case Study Here at DMC, almost all of our LabVIEW applications acquire data at one point or another. This data often needs to be saved to disk for later review, display, and/or exported to a report. Years ago, logging to...

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Energy Storage Research and Development:  Two New Case Studies
Darren Jones

Energy Storage Research and Development: Two New Case Studies

At DMC, we're happy to be working hard at the cutting edge of emerging Energy Storage devices. Many of the systems we've recently architected and delivered are world-class manufacturing test systems for Batteries and Smart Battery Packs. Another aspect of our work is further upstream, in the realm of Research and Development. Two new case studies cite specific and extensive work that we have performed in world-class Battery and Fuel Cell research. Both systems can be distinguished ...

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RT-201: PLCs vs. Real-Time Systems
Eric Nielsen

RT-201: PLCs vs. Real-Time Systems

In RT-101: Real-Time Operating Systems (RTOS), I provided readers with a brief description of the many benefits that systems running an RTOS can provide in harsh and demanding environments. The bigger question is: in an industry saturated by PLCs (Programmable Logic Controllers), PACs (Programmable Automation Controllers), Field Point controllers, Microcontrollers and many others, why should an engineer choose an RTOS PAC (Programmable Automation Controller) platform above all the rest? To addre...

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RT-301: Capabilities of Distributed LabVIEW Real-Time
Darren Jones

RT-301: Capabilities of Distributed LabVIEW Real-Time

Eric Nielsen’s Real Time blog did a good job of hitting the major strengths and benefits of any system based on a controller running a Real-time operating system. Here I’ll get into a little more depth, specifically for the capabilities these systems give in regards to distributed execution. As we’ve learned, the major benefits of running a Real-Time system are determinism and robust operation. These benefits can be realized in a very powerful way: distributed execution. Dis...

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National Instruments LabVIEW Remote Panel Bug
Jody Koplo

National Instruments LabVIEW Remote Panel Bug

Although we use many different technologies and software packages at DMC, we have a great amount of experience with National Instruments LabVIEW. We currently have four Certified Architects and another seven Certified Developers. Lately, we've had several customers with applications that require distributed systems using cRIOs and RT PXI chassis. Both for development and for later interaction, we often use LabVIEW Remote Front panels. Remote Front Panels allow us to peek in and check on V...

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Battery Management System (BMS) Testing Article Featured on Evaluation Engineering
Jessica Mlinaric

Battery Management System (BMS) Testing Article Featured on Evaluation Engineering

An article co-authored by DMC Senior Project Engineer, Brent Hoerman, has been featured on the Evaluation Engineering website and will be published in the April print edition. Brent wrote the article after completing a project with Pickering Interfaces, in which they developed a new PXI Battery Simulator Module. Co-writing the article are David Owens and Bob Stasonis of Pickering. The article discusses new test and validation challenges associated with electric vehicles (EVs). As the populari...

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Creating a Modular LabVIEW Application (Part 1 of 3): Creating an Expandable Data Format
Danny Budzinski

Creating a Modular LabVIEW Application (Part 1 of 3): Creating an Expandable Data Format

One of LabVIEW’s strongest points is that it is a very “approachable” programming languages. Since it is a graphical language, it is relatively easy for a “non-programmer” to get a quick, simple, stand-alone program up and running. A lot of times, especially if you are just trying to get a quick data sample from something, this is all an engineer or technician might need. However, there are also instances when a process is complex enough that, not only do you nee...

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