NEWS RELEASE
NEW Tachometer Precisely Follows High Speed Machinery
San Diego,
CA – The new Ectron Model 441AL Tachometer/Frequency-to-voltage
Converter produces a real-time output that allows precise
analysis of the characteristics of high-acceleration mechanical
systems. Offering almost instant start-up characteristics, this tachometer
instrument is designed for those applications in which capturing
data during the first few milliseconds is critical.
Microcontroller
based, the Model 441AL offers adjustable “input
frequency to output voltage” set points allowing
the user to closely bracket the range of interest. Input
sensitivity and bandwidth are adjustable to provide stable operation
under difficult signal conditions. The front-panel display
shows the input frequency with five-digit resolution. RPM indication
is optionally available.
Conversion update rate of 1 millisecond
is provided by a unique conversion algorithm in combination
with a fast processor.
Operating range covers from 60 to 300,000 rpm (1 Hz to 50,000 Hz)
with conversion accuracy of 0.1%, referenced to a precision
internal crystal. The logic-level input is differential
with a common mode voltage rating of ±100 V dc or
peak ac. Although a 5 V logic signal is typical, voltages
up to 100 V are compatible. The Ectron Model 441A is designed for
signals down to 10 mV.
The digital periodic filter allows
the user to enter the number of pulses per revolution to
cancel the frequency variation caused by unequal spacing of the cogs on a wheel,
paddles on a flow meter, etc. Output accuracy and noise is thereby
improved.
Applications for the Model 441AL include:
- Analysis of clutch
operation during engagement/release. For example, the start-up
acceleration of a vehicle air-conditioner compressor at
varying engine rpm and operating conditions. See Page 3 of
Application Note 200.
- Analyzing
Individual- and relative-wheel braking responses during
vehicle panic-stop tests. Monitor vehicle wheel
speeds during Antilock Brake System (ABS)
or Traction Control System (TCS) operation to precisely check
performance. Abrupt changes in wheel speeds from under 1 mph
to over 500 mph can be accurately analyzed. For this and other
applications see
Application Note 200.
- Evaluate turbine blade flutter even in high speed turbine engines.
- Monitor synchro engagement of transmission gears.
- Analyze start-up/shut-down
of high speed turbomachinery.
- Perform high accuracy monitoring
of turbine-type flow meters.
Designed to withstand vehicle
and airborne environments, this miniature instrument is uniquely
suited to a variety of applications whether
in the laboratory or under harsh field conditions.
See the Model 441AL product page
for more information and the
441AL data sheet
for complete specifications.
A variety of bench- and rack-mount enclosures
are available. Delivery of both the Models 441A and 441AL
is stock, and prices start under
$1,000. Email Sales@ectron.com
for further information or a quotation.
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