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Trillium Compact Seismometer User Guide

Applies to the following products:

The information in this document has been carefully reviewed and is believed to be reliable.

Nanometrics Inc. reserves the right to make changes at any time without notice to improve the

reliability and function of the product.

No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any

form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without

the prior written permission of Nanometrics Inc.

Nanometrics Inc.

250 Herzberg Road

Kanata, Ontario, Canada K2K 2A1

Tel +1 613-592-6776

Fax +1 613-592-5929

[email protected]

www.nanometrics.ca

Product Name

Model Number

Saleable Part Number

Trillium Compact, 120 second

TC120-SV1

16838

Trillium Compact, 20 second

TC20-SV1

16838-20

Trillium Compact Posthole, 120 second, 300 m

TC120-PH2

17327

Trillium Compact Posthole, 20 second, 300 m

TC20-PH2

17327-20

Trillium Compact Posthole, 120 second, 50 m

TC120-PH1

17656

Trillium Compact Posthole, 20 second, 50 m

TC20-PH1

17656-20

Part number

16889R5

Release date

2014-03-04

Содержание TC120-PH1

Страница 1: ...Trillium Compact User Guide Kanata Ontario Canada...

Страница 2: ...c mechanical photocopying recording or otherwise without the prior written permission of Nanometrics Inc Nanometrics Inc 250 Herzberg Road Kanata Ontario Canada K2K 2A1 Tel 1 613 592 6776 Fax 1 613 59...

Страница 3: ...ware or equipment where recovery is likely to be troublesome and provides recommendations for preventive action Note Provides additional information related to the current text Tip Explains a best pra...

Страница 4: ...2 2 Aligning a Trillium Compact Posthole to North 11 2 2 1 Using a Surface Line 11 2 2 2 Using a Surface Seismometer 12 2 3 Troubleshooting Your Installation 13 Chapter 3 Performing a Surface Vault I...

Страница 5: ...Trident Digitizer with a Trillium Compact 31 5 3 Increasing System Sensitivity 32 Chapter 6 Configuring Serial Communications 6 1 About Serial Communications 33 6 2 Establishing a Direct Serial Conne...

Страница 6: ...Trillium Compact Connector 56 10 2 2 Cable Pinout 16 Pin Connector to Nanometrics Digitizer 57 10 2 3 Cable Pinout 16 Pin Connector to Open End 58 10 3 Cable Design Guidelines 59 Chapter 11 Physical F...

Страница 7: ...lling Cradle 74 C 2 Using the Levelling Cradle and Spike Kit 75 Appendix D Free Software Information D 1 BSD Licence Information 77 Appendix E Glossary E 1 Glossary of Abbreviations and Terms 78 E 2 L...

Страница 8: ...and TC20 SV1 43 8 7 Physical specifications for models TC120 PH2 and TC20 PH2 43 8 8 Physical specifications for models TC120 PH1 and TC20 PH1 44 8 9 Environmental specifications 44 9 1 Ground motion...

Страница 9: ...H2 and TC20 PH2 61 11 3 Top view of models TC120 PH1 and TC20 PH1 62 11 4 Bottom view of models TC120 SV1 and TC20 SV1 63 11 5 Bottom view of models TC120 PH2 TC20 PH2 TC120 PH1 and TC20 PH1 64 11 6 S...

Страница 10: ...Trillium Compact User Guide 16889R5 2014 03 04 1 Part 1 Installation Getting Started Performing a Posthole Installation Performing a Surface Vault Installation...

Страница 11: ...d The 20 s variants have a wide operational tilt range of 10 and are suitable for downhole installations where the seismometer cannot be levelled or for rapid deployments where a quick settling time i...

Страница 12: ...and 108 Hz Model TC120 PH2 A posthole seismometer in a submersible stainless steel enclosure that has a 16 pin marine class connector is suitable to a depth of 300 m has a bandwidth of 3 dB points at...

Страница 13: ...it comes to site selection A survey provides knowledge of the structures over which the seismometer will be installed Where possible seismometers should be installed on bedrock and as far away as pos...

Страница 14: ...r attaching the connector of a third party digitizer In addition to connecting the analog inputs power and control line signals to the digitizing and data logging features of the digitizer this cable...

Страница 15: ...r attaching the connector of a third party digitizer In addition to connecting the analog inputs power and control line signals to the digitizing and data logging features of the digitizer this cable...

Страница 16: ...vault installation Models TC120 PH2 and TC20 PH2 posthole Cable Trillium Compact Posthole to Nanometrics Digitizer Molded 17768 10M 17768 30M A cable with a molded neoprene connector on one end that...

Страница 17: ...oth the serial number and the IP address of the unit Both numbers are provided on the unit label Keep this information readily available You will need to reference the serial number when contacting Te...

Страница 18: ...tion __________ Depth below surface m __________ Height above sea level m Posthole installation __________ Depth of hole m __________ Depth to bedrock m __________ Height above sea level m __________...

Страница 19: ...d hole must be covered at the top to protect the seismometer from the elements such as wind and rain This cover must secure and stabilize the electrical and lifting cables allowing some slack to avoid...

Страница 20: ...mometer with that of a temporarily installed surface based seismometer that is aligned to true north in order to calculate their relative orientation See Section 2 2 2 for details 2 2 1 Using a Surfac...

Страница 21: ...e seismometer When you install the reference seismometer on the surface ensure that you align it carefully in a known orientation After both seismometers have been installed leave the installations un...

Страница 22: ...circuit or interference from a strong magnetic or radio source that is nearby The mass positions are large but slowly trending towards zero and one or more of the main velocity outputs has an offset o...

Страница 23: ...l spikes following installation However if the spikes do not diminish after a few days there may be a problem with the installation See Section 3 9 Troubleshooting Your Installation on page 25 for mor...

Страница 24: ...scribe each of these installation options 3 3 1 Vault Installations Vault installations can be at or below the surface and usually include a pier that provides a level platform for the seismometer to...

Страница 25: ...2 Temporary Installations on Rock Installations on rock are at the surface level and the seismometer must be in a sealed insulated enclosure to protect it from the elements or other environmental dist...

Страница 26: ...lustrations that show the relative orientation of the alignment features in top bottom and side views For levelling purposes each Trillium Compact is equipped with Three adjustable height feet with lo...

Страница 27: ...drawn on the installation surface that is parallel to north south Figure 3 1 Example of seismometer alignment using vertically scribed marks The seismometer in Figure 3 1 illustrates model numbers TC1...

Страница 28: ...Using the north south vertically scribed marks Draw a line on the installation surface parallel to north south b Using the case top north south guide Stake a line for example using fishing line paral...

Страница 29: ...top north south guide to the staked line laser level line or straight edge see Figure 3 2 Example of seismometer alignment using the case top guide on page 19 Care is required when aligning the seismo...

Страница 30: ...re the temperature is very stable Therefore the objectives of a good installation are to Insulate the seismometer from temperature changes Prevent the movement of air on the surface of the seismometer...

Страница 31: ...of installation Section 3 1 Planning Your Installation on page 14 3 7 1 Insulating with the Insulating Cover Nanometrics recommends insulating your Trillium Compact seismometer with its specially des...

Страница 32: ...weatherstripping that is 1 25cm 0 5 in thick creates a good seal Ensure the thermal insulation box is held firmly in place by setting a weight on top of it A brick works well for this purpose Strain...

Страница 33: ...ine of the Trillium Compact 7 Gradually lower the insulating cover over the Trillium Compact ensuring that the insulating cover does not touch the seismometer If you are using the optional levelling c...

Страница 34: ...to electrical system noise For example power supply noise from a battery charging circuit or interference from a strong magnetic or radio source that is nearby The mass positions are large but slowly...

Страница 35: ...Trillium Compact User Guide 16889R5 2014 03 04 26 Part 2 Operation Input and Output Signals Configuring Your System Configuring Serial Communications Using the Web Interface...

Страница 36: ...ter output is XYZ where the outputs represent horizontal and vertical motion To understand the difference between the UVW and XYZ outputs see Figure 4 1 By design the Trillium Compact axes are identic...

Страница 37: ...n 10 2 1 Pinout for 16 Pin Trillium Compact Connector on page 56 4 3 Digital Control Input Signals A Trillium Compact has two digital control input signals UVW and CTRL UVW changes the output mode whi...

Страница 38: ...3 5 V indicates that the Trillium Compact is no longer sufficiently level and may not be providing useful seismic signals Should this occur visit the installation site as soon as possible to level the...

Страница 39: ...on Refer to the user guide for your instrument for full instructions on using it with a seismometer Complete the sensor selection through the Web interface of the instrument or if you are using a Taur...

Страница 40: ...nstant 100 calibration units per m s s CalEnable 2 digital enable signal for calibration CalRelay 0 analog relay for calibration 0 use channel number MassCenterEnable 1 digital enable signal for mass...

Страница 41: ...e exact nominal sensor sensitivity for a particular model of Trillium Compact can be taken from the appropriate table in Section 9 1 Frequency Response for 120 s and 20 s Models on page 45 Increasing...

Страница 42: ...on configuring a SLIP connection on a Microsoft Windows computer If you are using a connection to a Nanometrics digitizer a SLIP connection is not required because the Web interface of the Trillium Co...

Страница 43: ...address of the unit to access the home page 6 2 1 Creating a SLIP Connection on a Windows XP Computer Use the following steps to configure a SLIP port on a Windows XP computer 1 In Control Panel selec...

Страница 44: ...ent of the IP address for the Trillium Compact 19 Click Advanced 20 On the General tab clear the Use default gateway on remote network check box and the Use IP header compression check box 21 Click OK...

Страница 45: ...your SLIP connection see Section 6 2 1 Creating a SLIP Connection on a Windows XP Computer on page 34 and to access the Web interface see Chapter 7 Using the Web Interface of the unit The IP address...

Страница 46: ...irmware 7 2 State of Health The SOH page provides information that indicates the health and status of the unit Click the Refresh button to update the page with the current information The sections on...

Страница 47: ...setting is Use control line Long or Short Period Mode The lower corner of the seismometer response can be changed from the normal operating mode of 120 s period to a short period response of approxima...

Страница 48: ...rd keeping or for transmitting to Nanometrics for technical support purposes 7 6 Firmware Use the Firmware page to view the current version of firmware reboot restart the unit and to upgrade it with a...

Страница 49: ...014 03 04 40 Part 3 Reference Specifications Transfer Function and Noise Floor Connector and Cables Physical Features and Dimensions Carrying Case Cable Waterproof Shroud Levelling Cradle and Spike Ki...

Страница 50: ...120 s models 754 3 nominal 0 5 precision 20 s models 753 1 nominal 0 5 precision Off axis sensitivity 0 5 Bandwidth 120 s models 3 dB points at 120 2 s and 108 Hz 20 s models 3 dB points at 20 04 s an...

Страница 51: ...resenting maximum mass position Three channel mass positions available through serial port Calibration input Single voltage input and one active high control signal to enable all three channels Remote...

Страница 52: ...rosion scratches and chips Levelling Integrated bubble level Adjustable locking feet Optional tripod deployment cradle for rapid levelling Alignment Vertical scribe marks for north south Case top nort...

Страница 53: ...body and standard connector Weight kg Housing Stainless steel surface resistant to corrosion scratches and chips Levelling Optional bubble level Optional tripod deployment cradle for rapid levelling...

Страница 54: ...e nominal ground motion and combined calibration response for Trillium Compact 120 s and 20 s models As illustrated in Figure 9 1 the amplitude response to calibration input signals is nearly identica...

Страница 55: ...igitizer For digitizers with low input impedance it will become necessary to account for the fact that source impedance of the differential outputs is 300 1 percent 150 for each output Table 9 1 Groun...

Страница 56: ...2 and is given for informational purposes only Table 9 2 Ground motion response nominal parameters for 20 s models Symbol Parameter Nominal Values Units Zeros 0 0 392 1960 1490 1740i rad s Poles 0 221...

Страница 57: ...are listed in Table 9 3 The units of the combined calibration response are rad s because the calibration input produces an equivalent acceleration while the sensor passband is flat to velocity Therefo...

Страница 58: ...ault design if applicable and seismometer installation See Section 1 3 Selecting a Site on page 4 Figure 9 2 Self noise for 120 s models 1 See also Jon Peterson Observations and Modeling of Seismic Ba...

Страница 59: ...obability density function PDF mode low noise model MLNM The noise floor shown is the typical level of instrument self noise assuming proper installation To achieve best performance for any seismomete...

Страница 60: ...Table 9 3 Calibration circuit parameters for 120 s and 20 s models on page 48 R MAXIMUM MASS POSITION Mass position of the axis with the highest absolute mass position 4 V to 4 V analog D CTRL RX Cali...

Страница 61: ...ctor Pin Name Connector Pin Name P1 U CH1 P2 L Z W Brown 1 P1 C CH1 P2 M Z W Black 1 P1 B CH1 GND DRAIN 1 P1 A CH2 P2 F Y V Orange 2 P1 S CH2 P2 H Y V Black 2 P1 T CH2 GND DRAIN 2 P1 a CH3 P2 B X U Ye...

Страница 62: ...ctor Pin Name P1 U CH1 P2 L Z W Brown 1 P1 C CH1 P2 M Z W Black 1 P1 B CH1 GND DRAIN 1 P1 A CH2 P2 F Y V Orange 2 P1 S CH2 P2 H Y V Black 2 P1 T CH2 GND DRAIN 2 P1 a CH3 P2 B X U Yellow 3 P1 P CH3 P2...

Страница 63: ...ght angled Trillium Compact connector Table 10 4 Cable 16865 14 pin connector to open end Seismometer Digitizer Wire Colour Run Connector Pin Name Connector Pin Name P1 L Z W Brown 1 P1 M Z W Black 1...

Страница 64: ...V1 TC20 SV1 TC120 PH1 and TC20 PH1 to serial port and power Table 10 5 Cable 16978 14 pin connector to serial port and power Seismometer Serial Power Connectors Wire Colour Run Connector Pin Name Conn...

Страница 65: ...n circuit parameters for 120 s and 20 s models on page 48 14 MAXIMUM MASS POSITION Mass position of the axis with the highest absolute mass position 4 V to 4 V analog 3 CTRL RX Calibration enable Shor...

Страница 66: ...nnector Pin Name Connector Pin Name P1 U CH1 P2 9 Z W Brown 1 P1 C CH1 P2 10 Z W Black 1 P1 B CH1 GND DRAIN 1 P1 B CH1 GND P2 11 AGND Pink P1 A CH2 P2 7 Y V Orange 2 P1 S CH2 P2 12 Y V Black 2 P1 T CH...

Страница 67: ...ium Compact connector Table 10 8 Cable 17356 16 pin connector to open end Trillium Compact Posthole Digitizer Wire Colour Run Connector Pin Name Connector Pin Name P1 9 Z W Brown 1 P1 10 Z W Black 1 P...

Страница 68: ...Trillium Compact does not result in a voltage drop along the cable which takes the power supply voltage below the minimum required at the Trillium Compact See Table 8 5 Power specifications on page 4...

Страница 69: ...sections are illustrations that show the relative orientation of the north south alignment features on the various Trillium Compact models 11 1 1 Top View of Models TC120 SV1 and TC20 SV1 Figure 11 1...

Страница 70: ...ures and Dimensions Trillium Compact User Guide 16889R5 2014 03 04 61 11 1 2 Top View of Models TC120 PH2 and TC20 PH2 Figure 11 2 Top view of models TC120 PH2 and TC20 PH2 96 4 Connector North South...

Страница 71: ...op View of Models TC120 PH1 and TC20 PH1 Figure 11 3 Top view of models TC120 PH1 and TC20 PH1 Illustration shows optional cable waterproof shroud Nanometrics part number 17658 nM where n is the lengt...

Страница 72: ...show the features located on the bottom of the various models of the Trillium Compact 11 2 1 Bottom View of Models TC120 SV1 and TC20 SV1 Figure 11 4 Bottom view of models TC120 SV1 and TC20 SV1 1 All...

Страница 73: ...pact User Guide 16889R5 2014 03 04 64 11 2 2 Bottom View of Models TC120 PH2 TC20 PH2 TC120 PH1 and TC20 PH1 Figure 11 5 Bottom view of models TC120 PH2 TC20 PH2 TC120 PH1 and TC20 PH1 82 3 120 120 12...

Страница 74: ...hat show the alignment features and dimensions of the various models of the Trillium Compact 11 3 1 Side View of Models TC120 SV1 and TC20 SV1 Figure 11 6 Side view of models TC120 SV1 and TC20 SV1 Al...

Страница 75: ...sical Features and Dimensions Trillium Compact User Guide 16889R5 2014 03 04 66 11 3 2 Side View of Models TC120 PH2 and TC20 PH2 Figure 11 7 Side view of models TC120 PH2 and TC20 PH2 118 41 9 7 Nort...

Страница 76: ...ter 11 Physical Features and Dimensions Trillium Compact User Guide 16889R5 2014 03 04 67 11 3 3 Side View of Models TC120 PH1 and TC20 PH1 Figure 11 8 Side view of models TC120 PH1 and TC20 PH1 8 2 1...

Страница 77: ...apter 11 Physical Features and Dimensions Trillium Compact User Guide 16889R5 2014 03 04 68 Figure 11 9 Side view of models TC120 PH1 and TC20 PH1 with cable waterproof shroud North South guide 106 7...

Страница 78: ...hapter 11 Physical Features and Dimensions Trillium Compact User Guide 16889R5 2014 03 04 69 11 4 Side View of Optional 70 mm Spikes Figure 11 10 Side view of optional 70 mm spikes posthole models onl...

Страница 79: ...se the seismometer a 5 m ultra flexible cable Nanometrics part numbers 16777 5M or 16865 5M or a foam plug Nanometrics part number MEC16852R1 and a levelling cradle Nanometrics part number 16863 The c...

Страница 80: ...e and lower it into the case so that it is resting on top of the Trillium Compact OR If you are not packing a cable in the case insert the foam plug or other cushioning material that will prevent move...

Страница 81: ...environment leaving the cable mated to the sensor in field service however the cable can be changed in the field if necessary 1 Lightly grease the O Ring on the cable assembly with the silicone grease...

Страница 82: ...snaps into the locked position 6 Slide the waterproof shroud over the connector and align the holes in the adapter to those in the top of the Trillium Compact Posthole 7 Insert the four attachment sc...

Страница 83: ...simply adjust the seismometer on the supports until the bubble is in the centre of the black ring When using the cradle on its own without the spike kit described in Section C 2 on page 75 use the sha...

Страница 84: ...Long spike One spike for use in rocky or frozen soil or ice If more support is required you can use the three thin spikes with the long spike Figure C 2 shows four views of a Trillium Compact mounted...

Страница 85: ...ium Compact on the cradle aligning it to your alignment line see Section 3 5 Best Practices for Alignment and Levelling on page 19 4 Level the Trillium Compact by adjusting it on the cradle until the...

Страница 86: ...out modification this list of conditions and the following disclaimer 2 Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in...

Страница 87: ...78 Appendix E Glossary E 1 Glossary of Abbreviations and Terms A AGND Analog Ground AWG American Wire Gauge C CHGND Chassis Ground D DGND Digital Ground E EMI Electromagnetic Interference G GPS Global...

Страница 88: ...9R5 2014 03 04 79 N NHNM New High Noise Model NLNM New Low Noise Model P PDF Probability Density Function PWR Power R RF Radio Frequency RMA Return Merchandise Authorization S SLIP Serial Over IP T TC...

Страница 89: ...etre per second squared A ampere mA milliampere AC alternating current MB megabyte b bit M megaohm B byte MHz megahertz bps bits per second mi mile C Celsius mL millilitre cm centimetre mm millimetre...

Страница 90: ...ld s leading scientific institutions universities corporations and test ban treaty monitoring organizations With state of the art manufacturing facilities in Ottawa Ontario Nanometrics is an award win...

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