Denso Selects Tektronix for Automotive Test Solution
22 Janvier 2008 - 2:00PM
PR Newswire (US)
Largest Japanese Automotive Electronics Manufacturer Uses Tektronix
DPO7000 Oscilloscopes and TDP1000 Probes to Enable Nanosecond-Order
High Frequency Analysis BEAVERTON, Ore., Jan. 22 /PRNewswire/ --
Tektronix, Inc., a leading worldwide provider of test, measurement
and monitoring instrumentation, announced that both its DPO7000
Series Oscilloscope and TDP1000 High Voltage Differential Probes
are being used by Denso Corporation to successfully analyze
nanosecond transient noise spikes in its Electronic Control Units
(ECUs) for engine control. Denso is Japan's largest automotive
electronics components manufacturer and was the first domestic
company to develop engine control ECUs. Automotive engines are
electronically controlled by an onboard computer known as an ECU.
An ECU computes information in real time to determine optimum
values for engine control parameters based on data relayed from
sensors placed around the vehicle. Multiple control ECUs are used
in contemporary automotive electronics systems, with as many as a
100 built into top-of-the-line luxury vehicles. However, because
ECUs form part of the vehicle's onboard system, they are required
to function in an extremely challenging environment. Malfunctions
cannot be tolerated as this could jeopardize passenger safety.
Operational conditions and requirements for these units have become
increasingly stringent in recent years. Similarly, demand for the
ability to analyze higher frequencies has escalated, particularly
with regard to noise immunity to transient signals or spikes in the
millisecond or microsecond, and most recently at the nanosecond
level. However, analysis of high-frequency noise in the order of
nanoseconds with conventional oscilloscopes and probes had been
problematic because of the presence of extremely noisy waveforms.
To address this challenge, Tektronix proposed to reduce the
electrical load on the measurement system, including the probe.
Although the passive voltage probes being used previously were
simple to use, input capacitance was quite large with a pF in the
teens, consequently distorting the waveform being measured. To
correct for this, Denso utilized the Tektronix DPO7000 series
Oscilloscope and the TDP1000 Active High Voltage Differential
Probe, which is connected directly to the oscilloscope. The
differential input capacitance of the TDP1000 is low, at less than
1pF, so any influence of the measuring instruments on the
measurement system is minimal. Another key feature is that
differential input facilitates resistance to common mode noise.
Accordingly, any influence on the waveform quality resulting from
connection of the probe is suppressed to the minimum, making it
possible to further refine analysis from microseconds previously to
the order of nanoseconds. This has enabled Denso to visualize and
identify which signal line is causing which behavior, even in cases
where nanosecond-order high-frequency noise is experienced. This is
an extremely significant achievement that will result in enhanced
quality and reliability for ECUs. "Now that ECUs are built into
vehicle engine compartments rather than the cabin interior, the
environment for noise has become even more severe," said Mr.
Tetsuya Nakamura, of Denso's Electronics Engineering Department 2,
Design Section 1. "This new combination of the Tektronix DPO7000
oscilloscope and TDP1000 High Voltage Differential Probe has
enabled us to accurately capture and analyze high frequency
transient noise at the nanosecond level, a feat impossible until
now. Accordingly, we have been able to provide even higher quality
for ECUs. The ability of Tektronix to provide a solution for
analyzing ECU noise in the order of nanoseconds is proof of the
effectiveness of measurement technologies, as well as being a major
contribution towards the development of automotive electronics."
About the TDP1000 High Voltage Differential Probe The TDP1000 and
TDP0500 High Voltage Differential Probes provides excellent
high-speed electrical and mechanical performance required for
today's Switch Mode Power Supply (SMPS), CAN/LIN Bus, and
high-speed digital system designs. Specifically designed for use
with and direct connection to the TekVPI(TM) probe interface used
on Tektronix' DPO7000, DPO4000, and MSO4000 Series oscilloscopes,
the TDP1000 and TDP0500 High Voltage Differential Probes achieve
high-speed signal acquisition and measurement fidelity by solving
three traditional measurement challenges: -- Outstanding Electrical
Performance -- Versatile Device Under Test Connectivity --
Ease-of-Use About the DPO7000 Series Oscilloscope The DPO7000 is a
high performance Oscilloscope unlike any other, with a maximum
sample rate of 40GS/s, maximum record length of 400M (deep memory),
and able to capture 250,000 waveforms every second using
Tektronix's own unique DPX technology. This Oscilloscope can be
used to analyze ECUs employed in automotive electronics systems by
equipping it with a variety of application software, or for other
uses such as power analysis of inverter switching devices. About
Tektronix Tektronix is a leading supplier of test, measurement, and
monitoring products, solutions and services for the communications,
computer, and semiconductor industries -- as well as
military/aerospace, consumer electronics, education and a broad
range of other industries worldwide. With 60 years of experience,
Tektronix enables its customers to design, build, deploy, and
manage next-generation global communications networks, computing
and advanced technologies. Headquartered in Beaverton, Oregon,
Tektronix has operations in 19 countries worldwide. Tektronix' Web
address is http://www.tektronix.com/. Tektronix is a registered
trademark of Tektronix, Inc. All other trade names referenced are
the service marks, trademarks or registered trademarks of their
respective companies. DATASOURCE: Tektronix, Inc. CONTACT: Gary
Grossman, Worldwide Sr. PR Manager of Tektronix, +1-503-627-1097,
Web site: http://www.tektronix.com/
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