Broadband sensors

Broadband (or BB) sensors are especially sensitive to low-frequency energy and are broadly defined as any instrument capable of reliably recording wave periods greater or equal to 10 seconds. This makes them useful for the analysis and detection of teleseismic earthquakes as well as techniques involving ambient noise. However, they are also well-suited for measuring high-frequency energy, limited only by the Nyquist frequency of the data logger's sampling rate. The downside to broadband sensors is usually their cost, size, and fragility relative to short-period sensors.

Nanometrics

Currently, 4 kinds of nanometric broadband seismic sensors are available. The Trillium Compact 120, Trillium Compact 20, Trillium Compact Posthole, and most recently, the Trillium Compact Horizon. These seismometers are ideal for long-term deployments of multiple months. All of these seismometers are compatible with the LPR-200 and TSAWR loggers and are designed for low energy consumption. 

Trillium Compact 120

The Trillium Compact 120 has a recording range between 120 seconds and 100Hz.

What info?

- Recording frequency range?

- Sensitivity?

- Adjustable feet and levelling bubble?

For more information, refer to the Nanometrics instrument information sheet: https://nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact.pdf?hsLang=en-ca

Trillium Compact 20

The Trillium compact has a recording range between 20 seconds and 100Hz. These instruments also have a tilt tolerance of 10° making for efficient deployment.

For more information, refer to the Nanometrics instrument information sheet: https://nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact.pdf?hsLang=en-ca

Trillium Compact Posthole

The Trillium Compact Posthole is designed with a robust casing allowing it to be deployed without a vault or protective case.

For more information, refer to the Nanometrics instrument information sheet:  https://nanometrics.ca/hubfs/Downloads/Data%20Sheets/trillium_compact_ph.pdf?hsLang=en-ca 

Trillium Compact Horizon

SmartSolo Broadbands

Two types of SmartSolo brand seismometers are currently available, one of which is a broadband seismometer. More information is available on the SmartSolo Seismometers page.

Short period sensors

Short-period (SP) sensors have limited sensitivity to longer periods, but are otherwise perfectly suitable for earthquake or other high-frequency analysis. They are generally defined as any instrument that begins to lose sensitivity at periods larger than 10 seconds. They tend to be smaller and more mechanically robust to broadband sensors.

Lennartz Electronic LE-3D Lite (MkII)

etc

SmartSolo Short periods

Two types of SmartSolo brand seismometers are currently available, one of which is a short-period seismometer. More information is available on the SmartSolo Seismometers page.

etc

Channel and Instrument conventions

We follow FDSN guidelines for sensor channel and type naming conventions, outlined at SAGE / IRIS