Typical Uses

Gems excel in situations where traditional multichannel data loggers and cabled sensors are too heavy, visible, or difficult to set up, or where more flexibility in instrumentation layout is needed. Past examples:

• A 22-element array for recording earthquake aftershocks (Anderson et al., submitted; Scamfer et al., submitted)

• Concealed single-sensor installations in highly theft-prone sites (Tatum et al., submitted)

• Flying on stratospheric balloons (e.g., Bowman and Albert, 2018)

• Hanging from a cable across a volcanic crater (Rosenblatt et al., 2022)

• Network of individual sensors spaced 500 m apart extending radially from a volcanic vent 

• Ordinary infrasound arrays where cabled instruments are inconvenient due to dense vegetation, difficult terrain, or risk of theft

Loans

We support limited loans of sensors to support work by other scientists. Details and policies are here. Please use this form to submit a loan request. The Gem lending program is supported by NSF award EAR-2122188. 

Purchases

We are sometimes able to sell Gems. Please email jacobanderson152@boisestate.edu for current pricing and lead time; please include basic information on your intended applications and needs to ensure that the product is appropriate for you. 

Resources

• Datasheet (shown below)

• Quick Start User Guide

• Data Conversion Software Installation/Instructions (Python package "gemlog")

• Real-Time Data-Streaming with the Gem

• Paper: Anderson et al., 2018. The Gem Infrasound Logger and Custom-Built Instrumentation. SRL.

• Independent review of several low-cost infrasound sensors, including the Gem: Slad and Merchant, 2021