VTI Instruments EMX-4016B, Руководство пользователя

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VTI Instruments Corp.
APPENDIX B 62
SECTION 5
D
IGITIZER
M
ODULE
D
ESCRIPTIONS
O
VERVIEW
The Smart Dynamic Signal Analyzers family of products incorporates best-in-class analog design
methodology to deliver industry leading measurement accuracy. These instruments are ideal for a
wide range of applications including noise, vibration, and harshness (NVH); machine condition
monitoring; rotational analysis; acoustic test; modal test; as well as general purpose high speed
digitization and signal analysis.
D
IGITIZER
F
EATURE
C
OMPARISON
EMX-4250/4251 EMX-4350 EMX-4380
No. of Channels 4250: 16ch / 4251: 8ch 4 4
IEPE Input Type Pseudo-Differential Differential Differential or Single-Ended
Max. Sample Rate (samples/s) 204.8k 625k 625k
Voltage Input (V) 0.1, 0.2, 0.5, 1, 2, 5, 10 0.1, 1, 10, 20 0.1, 1, 10, 20
Charge Input (kpC) N/A N/A 0.1, 1, 10
IEPE Current (mA) 4.5 mA, 10 mA 0 mA - 20 mA 4.5 mA, 10 mA
Input Coupling AC, DC AC, DC AC
AC Coupling -3 dB Corner (Hz) IEPE/Volts: 0.24 Hz IEPE/Volts: 0.5 Hz IEPE/Volts: 0.20 Hz
Charge: 0.32 Hz
Input Ground Isolation from Chassis None None ON or OFF
ON: 50 V dc, 100 MΩ
Table 5.1: Digitizer Feature
P
OWER
C
ONSUMPTION
The table below shows the +3.3 Vdc and +12 Vdc current consumption drawn from the backplane
for each module. The current drawn from the +12 Vdc rail is shown for three common IEPE current
settings (all channels with the same setting): 0 mA, 4.5 mA, and 10 mA.
Model
Current Requirement (A) Max.
3.3 V dc
12 V dc Power
IEPE=0 mA IEPE=10 mA IEPE=4.5 mA (Watts)
EMX-4350 1.32 0.46 0.56 0.51 12.3
EMX-4380 1.32 0.45 0.60 0.52 11.6
EMX-4250 1.64 0.60 0.96 0.76 16.9
EMX-4251 1.64 0.33 0.53 0.42 11.7
Model EMX-4016 EMX-4016B EMX-4016M
Power NA < 2W
12.5 Watt Typical, Vexc=10V, RL=350Ω
16.5 Watt Typical, Vexc=5V, RL=120Ω
20.0 Watts Max. Vexc shorted
Table 5.2: Power Consumption