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| DTX-9000
Integrated Signal Conditioning Data Recorder
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| Signal Conditioning Capability:
The modular architecture of the DTX-9000 design supports a
wide variety of programmable signal conditioning modules which
can be intermixed to satisfy the most demanding test requirements.
Available modules include strain amplifiers with voltage excitation
and internal bridge completion, linearized thermocouple amplifiers
with cold-junction compensation, frequency-to-voltage converters
with dual input pulse conditioners for both signal and direction
sensing, constant current sources with TEDS capability, high
impedance charge amplifiers and differential instrumentation
amplifiers with 350V common mode capability.
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Solutions for a Multitude of Transducer Configurations |
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Strain Conditioners
The DTX-5078
and DTX-6078
are four-channel, programmable gain, differential
input amplifiers that provide signal conditioning
for
bridge type transducers. In addition to analog
signal amplification, each independent channel
includes bridge completion, input offset bias
compensation, voltage excitation with remote
sense
capability, local or remote shunt calibration,
digital signal processing with programmable
filtering,
and output buffering.
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Instrumentation Amplifiers
The DTX-53xx
and DTX-63xx
series of instrumentation amplifiers are low
noise, high accuracy amplifiers with differential
inputs, which may be either AC or DC coupled.
Unique to the DTX-5312
and DTX-6312 are integral input attenuators
extending the input signal voltage range to
±350V.
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IEPE (Constant Current) w/TEDS
The DTX-5290
and DTX-6290
are four-channel signal conditioners for ICP,
ISOTRON, or other types of transducers that
require
constant current excitation. Multiple input
stages are used to optimize performance across
an extended gain-bandwidth beyond the range
of simpler designs. A programmable constant
current
source provides power to the input sensor,
and the return signal (which appears as a
varying
voltage on the same line) is amplified and
processed into a ±10V output signal.
Each channel is configured as an AC coupled
amplifier with
programmable gain capable of converting sensor
signals as low as 5mV (peak) into a ±10V
output voltage.
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Linearized Thermocouple Conditioners
The DTX-5120
Signal Conditioner is a four-channel module that
provides voltage amplification, non-linearity
correction, and cold junction compensation for
multiple thermocouple types. Incorporating a “lookup”
table approach for real time signal correction,
any transducer signal can be converted real time
into equivalent engineering units. Correction
tables for common thermocouple types and ranges
are integrated into each DTX-5120
module. Although designed for the linearization
of thermocouple inputs with cold junction compensation,
the flexible configuration of the DTX-5120
amplifier provides the ability for dynamic sensor
calibration, including temperature compensation,
when utilizing the cold junction temperature sensor
to monitor transducer temperature.
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Frequency to Voltage Converters
The DTX-5636
is a programmable four-channel dual-input Frequency
to Voltage converter that provides signal
conditioning
for frequency output transducers. This includes
magnetic pickups, optical encoders, and
other
rotation or position-sensing devices. The input
pulses are converted to a filtered DC output
voltage
between 0 and ±10V, based on the input
frequency, the user-selected Hz/V conversion
factor,
and the direction of rotation.
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Multi-Mode Conditioners
The DTX-5492
and DTX-6492 Multi-Mode conditioners combine
the features and functional capability of
DC/AC coupled
instrumentation amplifiers, IEPE signal conditioners
with TEDS interface, thermocouple linearization,
non-linear transfer functions, programmable voltage
excitation with remote sense, programmable
constant
current excitation, and input offset balance
compensation, all into a single four-channel
module. These Multi-Mode
modules provide flexibility for test scenarios
where the number and type of transducers
are either
not known prior to test setup or are regularly
reconfigured for different test paradigms.
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Acquisition Modules
The
DTX-5500 modules are four-channel programmable
gain input buffers with low noise, high accuracy
differential inputs, which may be either
AC
or DC coupled. These modules provided equivalent
functionality to the DTX-890/AC
modules utilized in the DataMAX DTX-3P
series of portable recorders and
DTX-9R, 15R series of rack mount recorders.
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