Mechanical Data Handling

The Mechanical Data Handling (MDH) facilities provide data acquisition, data reduction and data presentation for vibration, micro-vibration, acoustic and shock testing. The acquisition system can handle various analogue inputs and consists of four mobile/modular 128 channel racks interconnected to the test article via mobile patch panels. Thanks to these mobile patch panels the instrumentation lines stay connected to the test article when moving from one facility to the other and the patch panels can be easily reconnected to the acquisition racks.

In addition to the data acquisition system ETS can also provide accelerometers.

The main parameters of the Mechanical Data Handling are listed below:



Available recording channels:
  512#
     
Available conditioner channels:
• Piezoelectric transducers
• Voltage signals
• Strain gauge channels
 
348#
260#
80#
     
Sampling rates and recording time:
  < 20kHz continuous recording,
  < 100kHz 40s recording,
  < 200kHz 20s recording
   
     
Charge amplifier characteristics:
• Input range
• Frequency bandwidth
• Dynamic range
• Amplitude accuracy

 
±25 to ±51200pC
96kHz
> 80dB
0.2 %
     
Voltage amplifier characteristics:
• Voltage input range
• Frequency bandwidth
• Dynamic range
• Amplitude accuracy
• ICP supply

 
±100 to ±10V
96kHz
> 92dB
0.2%
4mA
     
Bridge amplifier characteristics:
Full bridge, half bridge and
quarter bridge

• Frequency bandwidth
• Dynamic range
• Amplitude accuracy
• Bridge supply voltage
• Bridge max. supply current
 


20 kHz
> 90dB
0.2%
0.5, 1, 2 and 5V
30mA
     
Connectors:
• Piezoelectric sensors
• Voltage sensors
• Strain gauges
 
microdot 10/32
BNC
LEMO/soldered