<img height="1" width="1" style="display:none;" alt="" src="https://dc.ads.linkedin.com/collect/?pid=736666&amp;fmt=gif">

Are IVI Instrument Drivers Compatible with Linux?

Posted by Chris Gibson on May 13, 2019 3:21:18 PM

A question that we often get is whether or not the IVI instrument drivers that we supply with our AMETEK VTI products are compatible with Linux. The reason for this question is that many users prefer to have complete control over the software of their test system. And as a result, prefer to use Linux over Windows as their test system’s operating system. For users of LXI instrumentation, the question becomes whether or not the IVI instrument driver that comes standard with their LXI hardware work in Linux.

First of all, it is important to note that there are two levels of IVI compliance: IVI-COM and IVI-C. IVI-C drivers are IVI drivers that that have a C application-programming interface (API). IVI-COM drivers are IVI drivers that have a COM API. COM is a Microsoft technology, and is an architecture that is heavily dependent on the Windows operating system. As a rule of thumb, therefore, IVI-COM drivers will not work on a Linux OS.

Read More

Topics: Compliance Testing, test bench, IVI

How Can I Decrease Test Time in High-Channel-Count Applications?

Posted by Grady Keeton on Apr 26, 2019 1:44:33 PM

When performing functional tests, keeping test times as short as possible is often a critical requirement. Time is money, after all. One way to reduce test times is to reduce the latency in setting up signal switch paths, stimulus devices, and measurements. These can all have a significant impact on the overall time it takes to complete a full functional test of a particular DUT. 

Read More

Topics: automotive testing, Compliance Testing, defense testing

EX1403 Provides 16 Channels of Bridge and Strain Gauge Measurements

Posted by Chris Gibson on Apr 12, 2019 8:46:32 AM

Manufacturing and test environments can be very demanding, and most manufacturers need test equipment that is both accurate and reliable to meet increasing product throughput demands. To meet these demands, AMETEK Programmable Power has introduced the VTI EX1403 16-channel bridge and strain gauge instrument. The EX1403 sets the standard for stress and fatigue testing, delivering the highest performance measurements possible while keeping overall test hardware costs low and maximizing system uptime.

Read More

Topics: Compliance Testing

A New Paradigm for Calibration

Posted by Grady Keeton on Apr 2, 2019 3:42:06 PM

Calibration is not an option. While today's instruments are more accurate and drift less than previous generations, you still need to periodically check and calibrate your equipment. The way you do this, however, is changing.

In the past, manufacturers would recommend calibration intervals. A digital multimeter manufacturer might, for example, recommend that you calibrate the instrument once a year. When that year was up, you sent the DMM to your company's cal lab or to a third party.

That paradigm is changing. The current trend in metrology is not to blindly follow a manufacturer’s stated calibration interval, but to determine your own interval based on how much each instrument drifts over time and how much risk you're willing to take. 

Read More

Topics: calibration, metrology

Visit AMETEK Programmable Power at APEC 2019

Posted by Jon Semancik on Mar 11, 2019 1:53:44 PM

AMETEK Programmable Power, the global leader in programmable AC and DC power test solutions, will be exhibiting at APEC 2019, which takes place this year from March 17 – 21 in Anaheim, CA at the Anaheim Convention Center. At our booth (#1265), you can discuss your power problems with our engineers and get a hands-on demo of our products, including:

 

  • Asterion® Series. The California Instruments™ Asterion® power sources feature sophisticated technology for delivering high performance, programmable AC and DC power. The sleek design packs maximum power density into a low-profile form factor with an intuitive touch screen interface that places that power at your fingertips. Centralized control and unparalleled modularity make Asterion the most adaptable platform on the market and sets the standard for affordable, precision power sources.Specifically on display will be:

 

Read More

Topics: Trade Shows, Events, APEC 2019

Asterion line now includes higher power units

Posted by Jon Semancik on Feb 28, 2019 9:00:00 AM

We have just added two new higher-power models to our Asterion™ line of AC power sources:

  • The Asterion 4503 supplies AC and DC output power up to 4,500 VA or 4,500 W;
  • The Asterion 6003 supplies up to 6,000 VA or 6,000 W.

Both units come in a 4U chassis, and can supply single or three phase output power. Like the other models in our Asterion series, the 4503 and 6003 offer a compelling combination of intelligence, performance, and modularity that make them the most adaptable and affordable platform available today. These features include:

  • AMETEK’s iX2™ current-doubling technology. With iX2, as the output voltage decreases from the maximum value to one-half the maximum value, the available output current increases up to two times the rated output current. This allows Asterion to maintain maximum power through the widest range of voltages. iX2 current-doubling technology eliminates the need to buy multiple sources or overpowered sources to run tests at different voltage levels, such as when performing low line voltage testing.
  • AC and DC output voltage ranges up to 400 Vac and 500 Vdc. Load and line regulation are +/-0.025% and +/-0.015%, respectively. This makes the Asterion more versatile and accurate than most other AC power sources available today.
Read More

AMETEK Introduces the RX0424, an All-New Rugged Accelerometer Instrument

Posted by Jon Semancik on Feb 12, 2019 9:39:37 AM

AMETEK VTI's new RX0424 IEPE/Voltage Instrument is a cost-effective new device that is ideal for measuring acceleration forces and sensing static and dynamic movement or vibrations. Fully-integrated IEPE current excitation and tachometer input channels further enhance the instrument’s utility and functionality.

The RX0424’s precise signal path design delivers laboratory-grade measurements to the field. The RX4024 provides exceptional accuracy and repeatability by using independent 24-bit analog-to-digital converters at programmable data acquisition rates up to 204.8 kSa per second. Multiple input ranges help ensure that users capture all vibration events, large or small, and precision

The RX4024 connects directly to Integrated Electronic Piezoelectric (IEPE) transducers, which have a built-in charge amplifier or voltage amplifier. IEPE current excitation sources can be programmed to supply either 4.5 mA or 10 mA drive current. These sources can also be tailored to specific application demands.

Read More

Topics: Compliance Testing, defense testing

Data Acquisition System Provides Data Redundancy for Automotive Tests

Posted by Jon Semancik on Jan 31, 2019 8:00:00 AM

The automotive market is a highly competitive and complex business. In order to be competitive, vehicles must not only offer comfort and top-notch features at a cost-effective price but also ensure passenger safety. Long before any new model goes into mass production, a long series of sophisticated tests and validations are required at various stages to ensure that the vehicle meets all governmental standards and company performance standards.

Vehicles are often operated under test conditions for weeks or months, which requires logging and archiving massive amounts of data. In addition, in-vehicle tests often require the use of portable test systems, which are ideally compact, rugged, light in weight and free standing. Given the limited space within the vehicle, they typically must operate wirelessly with no connection to a computer. These in-vehicle datalogging systems must be compatible with a wide array of sensors.

Read More

Topics: automotive, automotive testing

Solving Jet Engine Test Problems Using Ruggedized Test Equipment

Posted by Jon Semancik on Nov 1, 2018 12:00:00 PM

A jet engine is the very definition of “mission-critical.” A critical failure could cause a serious accident that endangers hundreds of lives. To prevent this from happening, manufacturers perform extensive testing on jet engine components, systems, and manufacturing processes.

Jet engine tests involve subjecting the unit under test to extreme temperatures, jets of water, simulated hail, severe vibration, and other harsh conditions. Sometimes test engineers even slam chicken carcasses against engines to simulate bird strikes. These tests can be very costly and take years to develop. Engineers must measure many different parameters during these tests, including temperature, flow, pressure, rotation, strain, and vibration.

Read More

Topics: environmental testing, VTI

Analog-to-Digital Converters are the Heart of Data Acquisition Systems

Posted by Jon Semancik on Oct 25, 2018 12:00:00 PM

Jon Semancik, Director of Marketing, AMETEK Programmable Power

 

Data acquisition systems are at the core of many automatic test systems and industrial control systems. They make various types of physical measurements, such as temperature, pressure, flow, strain, position, and speed, using electronic equipment. The data collected is usually sent to a computer for analysis and display.

 What makes this data collection possible is the analog-to-digital, or A/D, converter. As shown in Figure 1, the analog-to-digital converter takes the analog voltage at its input and outputs a digital word whose value is proportional to the input voltage. The resolution of these A/D converters can be as low as eight bits (256 discrete values) or as high as 24 bits (16,777,216 values).

Read More

Topics: VTI, analog to digital

Subscribe Here!

See all

Recent Posts