E-Newsletter May 18th 2007,
Vol 1.0
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Welcome to the inaugural issue of our Test and
Measurement Application Newsletter. We recognize
that todays engineers are constantly being asked
to do more with less, so our goal in creating this
newsletter was to provide you with valuable and
practical content to help you meet the demanding
challenges you face. |
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Yokogawa T&M Products |
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4-ch 1.5GS/s Digital
Oscilloscope
16-ch ScopeCorder
8-ch Digital
Oscilloscope
6-ch Power Analyzer
Optical Spectrum
Analyzer
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Power Application:
Electric Motor & Drive Testing |
Electric
motor & drive testing and evaluation require
accurate measurement and synchronization of both
the electrical characteristics of the drive and
motor, plus the mechanical output characteristics.
Thepower analyzer must be capable of making
accurate Voltage, Current and Power measurements
on the highly distorted PWM waveforms from the
Variable Frequency Drive.
The WT3000
Series Power Analyzers have a basic power accuracy
of 0.02% of reading, and a bandwidth of DC, 0.1Hz
to 1 MHz. High-performance Digital Signal
Processors, DSP's, along with a special Digital
Filtering technique are used in the input
measuring circuits to achieve high accuracy
measurements and high speed response. In the
design of the WT3000 series, care was taken to
minimize the effect of common mode noise, power
line noise, and pulse noise, thus ensuring the
highly accurate and stable measurements on Pulse
Width Modulated, PWM, power conversion circuits.
This
series of Power Analyzers are available with up to
four Input Elements. With four Input Elements,
simultaneous measurements of single-phase
input/three-phase output, or three-phase
input/three-phase output can be made for
efficiency calculations. A typical application
would be to measure the input power to an Inverter
from a Fuel Cell or Battery, and the Three-Phase
AC Inverter output power. Cycle-by-Cycle
measurement function measures the RMS values of
Voltage, Current, Power and other parameters for
each cycle during startup, load changes and other
similar tests. The Delta Calculation function
allows the user to calculate individual phase
voltages from the line voltage measured in a
three-phase three-wire system. This makes it
possible to determine the Phase Voltage in Motors
and other devices under test where a neutral line
is not present.
The WT3000 can also measure the
outputs from a Torque Meter and Speed Transducer.
With this, complete motor analysis can be
performed, providing measurements and calculations
for Speed, Torque, Motor Electrical Power, Motor
Mechanical Power, Synchronous Speed, Slip, and
Motor Efficiency, all in a single instrument.
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Scope Application: Rear Seat In-Vehicle
Entertainment System Design Consideration
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While expensive
luxury sedans, family minivans, and aftermarket
modified vehicles often enjoy on board
entertainment systems, they rarely include
television or satellite broadcast systems due to
the difficulty in receiving and tracking the
broadcast signal while in motion. German company
FUBU, a subsidiary of Delphi Automotive,
specializes in developing hybrid in-vehicle tuners
and total vehicle entertainment systems.
Using a maximum ratio combining (MRC) design
technique, the company's products can
substantially refine signals in spite of radio
holes, partial drop outs, and Doppler effects at
up to 155mph. Shown in their development lab is
the "workhorse" Yokogawa DL1740 for current
probing, and DL9140 for simultaneous capture and
analysis of TV and CAN bus signals. The high
bandwidth of the DL9140 in combination with active
probes allows accurate representation of the
steepest signal slopes. Further, with the
Yokogawa DL's built-in FFT functions and "H" field
probe, the designers can quickly examine and
detect issues with radiated noise.
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Low Current Input Element
for Power Analyzer WT3000 |
New low
current measurement capability has been added to
further enhance the functionality of the WT3000
Precision Power Analyzer. The new 2 Amp Input
Element offers ranges from 5 milliamps to 2 Amps
with the capability to measure as low as 50 micro
amps with a basic accuracy of 0.03% of reading.
Applications for
this new low current input would include
measurements transformer core loss,
stand-by-power, and for use with current sensors
having a low milliamp per Amp output.
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Cycle-by-Cycle
Measurement for Power Analyzer WT3000 |
 Cycle-by-Cycle
measurement option is now available for the WT3000
Precision Power Analyzer. This function can
measure up to 5 items of RMS Voltage, Current,
Power, Phase Angle, Apparent Power, Reactive
Power, Frequency, Torque, Speed and Mechanical
Power. Data can be logged for up to 3000 cycles,
displayed on the screen in a time series and saved
in csv format.
Typical applications for this new function would
be on electrical equipment with fluctuating power
such as an inverter with varying loads applied,
startup or changing loads on an electric motor,
UPS systems and similar product testing.
For
more information, please click here |
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Introducing The New Battery Simulator |
Yokogawa's model GS610 S31 Battery Simulator
reproduces
the V-I characteristics of batteries to simulate
New, Defective and Low operating conditions. A
uniques feature measures the V-I characteristics
of batteries and then automatically creates a V-I
Look-up table. When connected to the DUT, complete
V-I performance curves can be generated and
modified in real-time to simulate operating
conditions. Output current are 3.2 Amps at 12
volts, or 2 Amps at 20 volts.
For more information, please e-mail us |
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Mixed Signal Oscilloscope
and Logic Analysis: DL9710L |
 The
DL9000 SignalXplorer family expands its' size with
the addition of the new DL9710 mixed signal
oscilloscope. If your work involves the use of a
microcontroller, DSP, or FPGA, this may be the
perfect tool for you. The DL9710L features 32
logic input channels in addition to four analog
and four real-time math channels. The DL9710L is
a next-generation MSO that can perform all the
most popular measurements capabilities of a
traditional logic analyzer, including state mode,
custom thresholds, arbitrary grouping, complex
triggering, and deep memory. If you are working
with A/D or D/A components, you will love the
DL9710L's "virtual analog" channel, which lets you
view an ideal analog waveform converted from any
digital group. Best of all, the DL9710L's offers
a significant cost savings compared to a logic
analyzer and even competitive MSOs.
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High Performance Optical
Power Meter - AQ2200-215 |
The AQ2200-215 is an optical power meter that
covers high optical power up to +30dBm, featuring
high speed sampling and various data processing
functions. The AQ2200-215 is suitable measurement
tool for optical output power measurement and
margin test of WDM transmission equipment, and
output power and gain measurements of optical
fiber amplifiers.
At a glance the AQ2200-215 offers:
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High Power Measurement: +30dBm
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High-Speed Sampling: 10,000 points per second
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Various Optical Connectors: FC/SC/MU/LC
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Configure the desired measurement system by
combining AQ2200
Series modules with Yokogawa optical
communications measuring.
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Introducing New and
Improved Y-Link Support Site |
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Y-Link is a website that offers a variety of
information and services to registerd users of
Test and Measurement Instruments. This website
allows you to register your products after which
you are free to download software, documents and
products data sheets related to the test and
measurement instrument you are using.
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Getting To Know Yokogawa |
 Yokogawa
was established in 1915 and has grown into nearly
a $4 Billion company over the past 90 years.
Yokogawa is a technology leader that annually
reinvest nearly 10% of it's earnings into R&D and
has nearly 6,200 patents to show for it.
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Promotion & Deals |
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Now thru the end of May purchase our brand new
1GHz DL9710L Mixed Signal Oscilloscope including
Ethernet, two 250MHz Logic Probes plus our
powerful I2C+SPI+CAN+LIN Serial Bus
Analysis function at an unbelievable price of
$22,000. That's represents more than a 20%
discount!
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Buy one of our WT3000, WT1600 or PZ4000 AC Power
Analyzers and get 30% off of one of our DL9000
signalXplorer Oscilloscopes. That's a powerful
package!
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Trade-in any working Optical Time Domain
Reflectometer (OTDR) and receive a $1,000 credit
toward the purchase of our latest OTDR the AQ7270.
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We hope this newsletter provided you with some
valuable information. Stayed tuned for future
issues of "applicationXplorer"
and more useful information from
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Test & Measurement
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