Sensors

Chaparral Physics 64Vx2

Salient Features:
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Infrasound Sensors

EPIC Infrasound Sensors: Chaparral Physics 64Vx2 Features:
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Kinemetrics MBB-2

Salient Features

The MBB-2 is a compact, triaxial broadband seismometer engineered for high-performance seismic monitoring in a wide range of environments. Built into a durable, passivated stainless steel housing, the MBB-2 provides a velocity-sensitive output across a broad frequency passband from 120 seconds to 150 Hz. With a nominal sensitivity of 750 V·s/m and low self-noise, it is capable of capturing both small ground motions and large seismic events with precision.

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Compact Broadband Sensors

EPIC Compact Broadband Sensors: Kinemetrics MBB-2 Nanometrics Trillium Compact Horizon Features:
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All-In-One Systems

All-In-One systems combine seismic sensors with their dataloggers in a single, easily-deployed unit. Because these units do not require numerous cables to connect a sensor to its datalogger, they avoid many serious problems associated with cables, such as incorrect connector types, broken and chewed wires, or damaged pins. They are also much easier to deploy than conventional sensor/datalogger combinations. Their use can dramatically cut down on both station installation times and the number of required personnel. Their smaller size can also be very beneficial for deployments using volume-limited transportation methods, such as sea vessels.

Because Nodes and SmartSolos both utilize lithium batteries that operate above the 100Wh threshold, shipping of more than 2 units produced by either vendor will require special handling, including: packing, marking and documentation. Special handling, if needed, will require the assistance of a certified dangerous goods shipper.

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Smart Solo IGU-16HR 3C

The Smart Solo IGU-16HR 3C is a compact all-in-one 3-channel sensor & datalogger with onboard GPS timing, and a self-contained power supply. Similar to the FairfieldNodal ZLand 3C, it has been adopted by the academic community as a useful sensor for both active and short-term passive experiments.

The units require a pre-deployment plan to be filled out with the sample rate, gain, and minimum or linear phase specified. The units must be sent back to EPIC for data offload, unless the portable harvester system is requested for the experiment.

Specifications:

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Magseis Fairfield ZLand 3C Node - 3-Channel All in One, Sensor and Datalogger

The FairfieldNodal ZLand 3C is a compact all-in-one 3-channel sensor & datalogger with onboard GPS timing, and a self contained power supply. Originally designed for use in large N industry deployments, it has been adopted by the academic community as a useful sensor for both active and short-term passive deployments.

Unlike other sensors & dataloggers at EPIC, use of the ZLand 3C requires a deployment plan to be filed in advance with EPIC for handheld unit pre-programming.  Likewise, the units must be sent back to EPIC for data offload.

Nanometrics Trillium 120 Posthole Broadband Sensor

Note:  EPIC has purchased 11 Nanometrics Trillium 120PH seismometers.

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Updated Instrument Response for Trillium_120, Trillium_240 (2 Generations) and Taurus

Instrument Response files released from Nanometrics for Trillium 120 and Trillium 240 sensors have been evaluated and updated for Antelope, where they are used to generate dataless and RESP files.

Sensor Certification

Introduction:

All equipment, especially sensors and cables, are cleaned and comprehensively tested when they arrive at the PIC, regardless of whether the equipment are newly delivered from the manufacturer or being returned from an experiment.  EPIC makes every effort to ensure that all equipment are operating to the manufacturers specifications.

This article outlines the procedures undertaken and metrics employed by the PIC to verify that sensors operate within manufacturers specifications.

Procedures:

All sensors returning from a field experiment are subject to the following procedures:

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