 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
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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
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|
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| 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 |
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Last Updated on Wednesday, 19 May 2010 09:16 |
Trillium 40 Datasheet