The descriptions of the new products listed in
this section are based on information supplied
to us by the manufacturers. Physics Today can assume
no responsibility for their accuracy. To facilitate
inquiries about a particular product, a Reader Service
Card is attached inside the back cover of the magazine. Lawrence
G. Rubin
January 2005, page 60
Signal Conditioning Modules
IOtech has introduced three new modules to its signal
conditioning line: the DBK55, DBK65, and DBK85. All
three are compatible with the companys DaqBoard/2000
series, which includes DaqBook, DaqLab, DaqScan, and
LogBook products. The DBK55 is an eight-channel frequency-input
module that converts the frequency to a voltage and
accepts digital and low- and high-level analog signals.
The frequency is programmable from 1 Hz to 950 kHz
with a resolution of 0.25 mHz. The DBK65 offers eight
channels of transducer inputs, suitable for 4- to
20-mA transducer outputs, 3-wire string pots, and
4-wire and 6-wire bridge-based transducers. Excitation
voltages of 5, 10, 15, and 24 V are incorporated.
The DBK85 provides 16 channels of differential-voltage
input with a unity-gain input stage on all channels.
IOtech Inc, 25971 Cannon Road, Cleveland, OH 44146,
http://www.iotech.com
Frequency-to-Digital Converter
Sensors Web Portal has announced the UFDC-1, a programmable
two-channel frequency-to-digital converter that can
be used with any frequency, period, duty-cycle, time-interval,
phase-shift, and pulse number signals. The converter
is designed for use in frequency−time domain
and digital sensor applications. It has a frequency
range from 0.05 Hz up to 7.5 MHz without prescaling
and 120 MHz with prescaling. The converter offers
a programmable accuracy for frequency (period) conversion
of 1% up to 0.001% for rectangular waveform input
pulse signals. The UFDC-1 has a 500-kHz internal reference
clock and an automated calibrator using an 8-MHz quartz
crystal oscillator. It has 16 measuring modes with
optional additional ones, plus mathematical operations
for on-chip data and signal processing. Sensors
Web Portal Inc, 46 Thorny Vineway, Toronto, Ontario,
Canada M2J 4J2, http://www.sensorsportal.com
Sequential Waveform Recording
Acqiris has added to its sustained sequential recording
(SSR) firmware new capabilities that enhance the ability
to acquire, store, and transfer sequential waveforms
to a host PC at high sustained trigger rates and thereby
increase measurement throughput. The new SSR firmware
for the companys AP240 and AP235 dual-channel
recon_1figurable analyzer platforms offers new data-gating
functions that further maximize event-transfer rates
and allow the setting of pre- and post-markers to predefined
threshold gates. The AP240 can digitize and store waveforms
at sampling rates of up to 2 giga-samples per second
(1 GSa/s with the AP235). The SSR firmware features
a "burst mode," with trigger rates within
the burst of up to 500 kHz for sequences of 1-µs
waveforms digitized at a 1-GSa/s rate. Acqiris USA,
P.O. Box 2203, 234 Cromwell Hill Road, Monroe, NY 10950-1430,
http://www.acqiris.com
Airborne Recording and Reproduction System
The model D7000 from Heim Data Systems is an avionics
data-acquisition and recording platform that features
adaptable signal interfacing and interchangeable media
cartridges. The user can choose and load either rugged
hard-drive or solid-state media at any time. With
up to 256 Mbit/s total system data rate, the D7000
includes an integral IRIG (Inter Range Instrumentation
Group) time-code generator. It can also synchronize
to external IRIG and GPS time sources to provide sustained
high-accuracy time tagging of recorded data; as an
option, an integral GPS receiver can be fitted. The
mainframe holds up to four signal interface cards,
in any combination, that offer a wide selection of
interfacing, including concurrent recording of video,
pulse code modulation, and MIL-STD-1553 bus sources
in a single unit. Heim Data Systems Inc, P.O. Box
N, Belmar, NJ 07719, http://www.heimdata.com
Digital I/O Card
United Electronic Industries has developed the PD2-DIO-128i,
a PCI-bus card that supplies 64 digital inputs and
64 digital outputs. The I/Os are conFigured in fixed
banks of 16 lines. All input ports are isolated from
each other and the rest of the board, as are the output
ports. The input lines on the card run at 10 kHz maximum
and work from an external supply voltage of 12−32
V; each port has its own isolated ground reference
and power-supply pins. Outputs also work with the
12−32 V levels, but operate at a maximum rate
of 3 kHz per port. Users of the PD2-DIO-128i card
can thus work with industrial voltage levels without
the need to add separate signal-conditioning modules.
Other features of the card include a glitch-free startup
state for all output ports and the ability to generate
an interrupt on any input line. United Electronic
Industries Inc, 611 Neponset Street, Canton, MA 02021,
http://www.ueidaq.com
Analog Input Interface
Measurement Computing has released the USB-1616FS, the
first product in the companys Measurement Advantage
brand interfaces. The new high-speed USB-based input
interface has 16 simultaneously sampled 16-bit analog
inputs with sampling rates per channel as high as 50
kilosamples per second and a continuous module throughput
of 150 kSa/s with 32-kSa bursts up to 300 kSa/s. The
USB-1616FS also offers eight bits of digital I/O and
a 32-bit counter, and provides a built-in USB expansion
hub that allows the user to chain together up to seven
USB-series interfaces without the need for additional
hubs. All units include SoftWIRE for graphical programming
and TracerDAQ, the companys powerful strip chart
recorder, oscilloscope, and data logger software application.
Measurement Computing Corporation, 16 Commerce Boulevard,
Middleton, MA 02346, http://www.measurementcomputing.com
Serial Communication Modules
Acromags PMC520 (octal 232) and PMC521 (octal
422/485) modules provide eight asynchronous serial
communications ports from a single PMC carrier slot.
Each serial port is equipped with large 64-byte transmit
and receive first-in-first-out buffers that minimize
CPU interactions for more efficient data processing.
Users can quickly set baud rates, character sizes,
stop bits, and parity; the baud rate is programmable
up to 250 kbits/s. The data ports generate individually
controlled transmit, receive, line status, data set,
and flow control interrupts. A global interrupt source
register provides interrupt status indication for
all eight channels. For use with the PMC modules,
Acromag has developed Win32 DLL drivers that are compatible
with Microsoft Windows XP−embedded applications.
Acromag Incorporated, P.O. Box 437, 30765 South
Wixom Road, Wixom, MI 48393-7037, http://www.acromag.com
Image Acquisition Board
National Instruments has announced the PCIe-1429
image acquisition board for high-throughput vision
applications. With the boards four-lane PCI
Express con_1figuration, users can acquire data at the
full Camera Link bandwidth of 680 megabytes per second
through a standard PCI bus. PCI Express technology,
developed by Intel Corp, is a point-to-point serial
interconnect that improves PCI by providing scalable
bus bandwidth. The PCIe-1429 board supports Camera
Link cameras and enables them to perform demanding
image applications such as synchronized data and image
acquisition, fault analysis, and advanced motion tracking.
Each board includes one trigger line and two Camera
Link connectors; additional I/O lines are available
for advanced triggering, pulse-train outputs, and
isolated digital I/O. National Instruments Corporation,
11500 North Mopac Expressway, Building B, Austin,
TX 78759-3504, http://www.ni.com
Temperature Data Logger
The EL-USB-1 from Saelig Co is a thumb-sized USB temperature
data logger with a measurement range of −25 to
+80°C. The device can store up to 16 382 readings
and its long-life replaceable lithium battery lets it
log data continually for at least one year (depending
on logging rate and temperature). The status of the
units logging is indicated by flashing red, green,
and orange LEDs. The con_1figuration software for the
EL-USB-1 is included free and allows the setting of
logging rate, measurement units, high and low alarms,
and start-time. The data stored in the logger is downloaded
to any USB1.1 port on a PC. Once downloaded, the data
can be graphed, printed, or exported to other applications.
The loggers con_1figuration software is compatible
with Microsoft Windows 98, 2000, and XP. Saelig Company
Inc, 1160-D2 Pittsford-Victor Road, Pittsford, NY 14534,
http://www.saelig.com
Portable Vibration Analysis Module
Vibration analysis software has been added by Analog
& Digital Peripherals to its DATAQ-CF2 Compact
Flash card for handheld PCs and compact flash-adapted
tablets and laptops. The card incorporates four 24-bit
analog inputs, two 12-bit analog outputs, four bidirectional
digital lines, and a 32-kilobyte data buffer. It has
been designed to be easily programmable for use with
the Microsoft Windows CE operating system. With the
DATAQ-CF2s vibration analysis software, a pocket
PC can display rms velocity, rms and peak acceleration,
high-resolution (up to 8192 points) time domain graphs,
and frequency domain plots (up to 2048 FFT points).
It also offers seamless transfer of all data to Microsoft
Word and Excel. The portable PC includes an ICP accelerometer
interface and a 2-Hz to 10-kHz bandwidth. Analog
& Digital Peripherals Inc, P.O. Box 499, Troy,
OH 45373, http://www.adpi.com
On the Web
CyberResearch has organized a new website that includes
a specification search tool to allow detailed side-by-side
comparisons of the companys products. Also
available on the site is Live Help that enables
online communication with an applications engineer.
CyberResearch Inc, 25 Business Park Drive, Branford,
CT 06405, http://www.cyberresearch.com
Sensor Synergy offers the Network-Enabled Equipment
Monitor (NEEM) model 12 that generates live web views
of data from common analog sensors and provides electronic
data sheets and web log information to supplement
the raw data. One NEEM can support up to 10 external
sensors. Sensor Synergy Incorporated, 1110 West
Lake Cook Road, Suite 340, Buffalo Grove, NY 60089,
http://www.sensorsynergy.com
New Literature
A 240-page catalog from Dataforth provides details
on its industrial communications products and its
Instrument Class industrial signal conditioning modules
and data acquisition products. The companys
line of SCM5B and SCM7B isolated I/O modules now includes
more than 850 models. Dataforth Corporation, 3331
East Hemisphere Loop, Tucson, AZ 85706, http://www.dataforth.com