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Broadband Seismometer (Trillium 40)
 

 
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Trillium 40

 

 
다목적 광대역 지진계 ( 휴대 및 고정 겸용 )

The Trillium 40 is a  multi-purpose broadband seismometer intended for both field portable and permanent observatory installations. Its long period response suits most teleseismic applications including receiver function studies, splitting analysis and tomography. Trillium's extended response at higher frequencies make it equally suitable for local and regional seismic studies; field portable and permanent observatory installations.






Benefits
  • Broadband design optimized for mainstream scientific studies
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  • Low parts count increases reliability, simplifies maintenance and lowers costs 
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  • Continuous electronic mass centering ensures reliable operation over a wide temperature range 
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  • Rugged construction, proven by formal shock and vibration testing, yields increased reliability
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  • No mass clamp to forget when shipping 

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  • Extremely low power consumption benefits portable applications 

     
 
Trillium 40 Specifications

TECHNOLOGY  
Topology                                                      Symmetric triaxial displacement transducer                     
Feedback Force balance with capacitive transducer
Mass Centering All-electronic continuous, effective over temperature range              
Leveling
Integral spirit level
Alignment
Vertical scribe marks for N and S, holes for 5/16" alignment rod
for E and W 
   
 PERFORMANCE  
 Self-noise  Below NLNM from 15 seconds to 5 Hz
 Response  Flat to velocity from 40 seconds to 50 Hz
 Temperature  ±35 degrees Celsius without re-centering
 Parasitic resonance  None, DC to 200 Hz
   
 ANALOG INTERFACE  
 Velocity sensitivity  1500 V*s/m
 Output Voltage  16 V peak-to-peak differential
 Mass position monitoring  Three independent voltage outputs
 Calibration  Analog input multiplexed to each channel
 Power  
Supply voltage  9-36 VDC, 0.6 Watt
 Reverse voltage protection  Included
   
 PHYSICAL  
 Size  22 cm diameter by 18 cm high
 Operating temperature  -20° to +50° C without recentering
 Humidity  0 to 100%
 Connector  19 pin MIL-C-26482
 Shock  20g half sine, 5 ms without damage, any axis
 Weight  11 kg