Rack-mounting Analyzer

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The DEWE-800-DSA is our rack-mounting dynamic signal analyzer platform. Configurable with 16 to 64 simultaneously sampled 24-bit resolution inputs ... with IEPE/constant current signal conditioning on each input channel. You can also set each input to be a voltage input if needed - or activate the constant current sensor supply to power your IEPE/ICP™ sensors. There's an additional ninth input for tach/RPM signals, allowing advanced angle-based measurement features like order tracking, and more.

Using our DAQ or MDAQ series modules, the accelerometer/microphone inputs are robust 24-bit inputs capable of sampling up to 200 kS/s PER CHANNEL. Data are streamed right into the system's hard drive, so recording time is extremely long given today's hard drive storage capacities. As an example, recording all eight channels at 200 kHz consumes 22 GB per hour ... so with today's larger and larger drives you have plenty of recording time!

Two models to choose from

There are two versions of this system, as shown below:

DEWE-800-DSA - utilizing up to 16 of our 1-channel DAQ series modules (normally engineers choose the DAQP-ACC-B or DAQP-CHARGE-A or -B modules for handling accelerometers and mics, but any combination is possible). This system has 16 dynamic analog inputs plus two counter/encoders to allow order tracking, and at least 8 digital inputs in addition.

DEWE-801-DSA - utilizing up to four of our 8-channel MDAQ series modules with BNC connectors (normally engineers choose the MDAQ-SUB-ACC or -A for handling accelerometers and mics, but others are available, for voltage, strain gage, etc.). This system has up to 64 dynamic analog inputs plus two counter/encoders to allow order tracking, and at least 8 digital inputs in addition.

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Key Points:

16 to 64 simultaneously sampled analog inputs and 2 encoder/tach inputs
8 additional digital inputs
24-bit resolution; 102 dB dynamic range
200 kS/s maximum sampling rate
Voltage or ICP® input per channel (also voltage ±10V selectable)
AC / DC coupling

Applications

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Hammer, Shake Table, and RPM workThe included software provides not only continuous acquisition via DEWESoft, but also the FRF functionality for frequency response function testing. Modal capabilities include both triggered and free-run modes. Use triggered mode when you are using an impulse hammer to excite a broad range of frequencies with distinct "hits" at preselected places on the structure. DEWE-FRF shows you the results of each hit, and provides also hit-reject functionality.

Use the free-run mode for shake table testing. DEWE-FRF includes strong yet easy to use analytical capabilities for all your model testing applications.

...and that's an order!
If you are testing engines, motors, flywheels, or anything rotating, then the order tracking function is especially important to you. The ninth input on the DEWE-3100-DSA-8 is exactly for a tach pulse input. During recording you can display your data in "orders" of the incoming rpm.