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ATLAS Wire Tension Measurement system. ATLAS Wire Tension Measurement system. The system uses electrostatic force to excite mechanical oscillation around the wire fundamental harmonic resonance The oscillation amplitude is sensed by measuring the capacitance variation in the wire-tube system - PowerPoint PPT Presentation
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The system uses electrostatic force to excite mechanical oscillation around the wire fundamental harmonic resonance
The oscillation amplitude is sensed by measuring the capacitance variation in the wire-tube system
Changing the high voltage modulation frequency mechanical resonance curve
Fully operated by a PC LabVIEW program
WTMTim ing unit
&ADC /DAC R/W
Tim ing unit
C o ntro l
C PU
&
RS232 inte rfa c e
PC se ria l p o rt
Se nso rM DT 1 C o m p a ra to r
HV m o d ula to r HVPo we r sup p ly
Sc a le r 1
Sc a le r 2
Se nso rM DT 2 C o m p a ra to r
Sc a le r 1
Sc a le r 2
Se nso rM DT 15 C o m p a ra to r
HV m o d ula to rHV
Po we r sup p ly
Sc a le r 1
Sc a le r 2
Se nso rM DT 16 C o m p a ra to r
Sc a le r
Sc a le r 2
System
bus
1
HVM o d ula to r
HVM o d ula to r
HV OFF
HV ON
Measure = fout (HV OFF) – fout (HV ON)
WTM
internal view
Sensor and HV modulation connections
RS 232 and T sensor connections
WTM
Control
panel
Parameter
setting
section
Output
section