1-20 OF 105 RESULTS FOR

microelectromechanical systems

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Noise floor of the ASX1000 <b>microelectromechanical</b> <b>systems</b> (MEMS) prototype ...
Published: 13 May 2021
Figure 1. Noise floor of the ASX1000 microelectromechanical systems (MEMS) prototype compared to the most common smartphone MEMS sensors and high‐quality force balance instruments. Dashed black lines are typical ground‐motion amplitudes of earthquakes measured at 10 km from the epicenter
Journal Article
Journal: Geophysics
Published: 23 April 2012
Geophysics (2012) 77 (3): WA99–WA107.
...Ranajit Ghose ABSTRACT A digital 3C array seismic cone penetrometer has been developed for multidisciplinary geophysical and geotechnical applications. Seven digital triaxial microelectromechanical system accelerometers are installed at 0.25-m intervals to make a 1.5-m-long downhole seismic array...
FIGURES | View All (9)
Journal Article
Journal: Geophysics
Published: 06 May 2011
Geophysics (2011) 76 (3): B79–B87.
...Christian Stotter; Erika Angerer Abstract A 2D vibroseis line was acquired in the Vienna Basin (Austria) for the purpose of comparing the data of digital multicomponent single sensors based on microelectromechanical system (MEMS) sensors alongside conventional vertical-component geophone arrays...
FIGURES | View All (8)
Journal Article
Published: 28 June 2017
Seismological Research Letters (2017) 88 (5): 1322–1326.
... not expected or thought about how to respond to such a large earthquake and its related aftershocks. After the event, Koreans were left feeling a certain level of apprehension. Responding to this situation, a temporary microelectromechanical system (MEMS)‐based seismic network was operated at six high‐school...
FIGURES
Journal Article
Journal: Geophysics
Published: 10 May 2021
Geophysics (2021) 86 (3): B223–B235.
... and excites seismic signals with a peak force of 6.7 kN. Data were recorded along two collocated geophone-based nodal and landstreamer microelectromechanical system - MEMS-based sensor 2D seismic profiles. To obtain a broad bandwidth data set, the e-vib operated with a 1–200 Hz linear sweep. Shot gathers...
FIGURES | View All (15)
Journal Article
Published: 01 February 2019
Earthquake Spectra (2019) 35 (1): 21–38.
... of the prohibitive cost of the sensors. Here, we propose the development of an array-based approach using mini-arrays of low-cost Microelectromechanical Systems (MEMS) accelerometers and show how they can be used to improve EEWS. In this paper, we demonstrate this approach using data from two MEMS Accelerometer Mini...
FIGURES | View All (9)
Journal Article
Published: 08 November 2016
Bulletin of the Seismological Society of America (2016) 106 (6): 2469–2489.
... for large earthquakes, and are sensitive enough to record P ‐wave arrivals. These characteristics make seismogeodesy suitable for real‐time applications such as earthquake early warning. The Scripps Institution of Oceanography (SIO) has developed an inexpensive microelectromechanical systems (MEMS...
Journal Article
Published: 13 May 2021
The Seismic Record (2021) 1 (1): 20–26.
...Figure 1. Noise floor of the ASX1000 microelectromechanical systems (MEMS) prototype compared to the most common smartphone MEMS sensors and high‐quality force balance instruments. Dashed black lines are typical ground‐motion amplitudes of earthquakes measured at 10 km from the epicenter...
FIGURES | View All (4)
Journal Article
Published: 13 November 2019
Seismological Research Letters (2020) 91 (2A): 622–630.
...Robert W. Clayton; Monica Kohler; Richard Guy; Julian Bunn; Thomas Heaton; Mani Chandy Abstract The Community Seismic Network‐Los Angeles Unified School District is a network of 300 low‐cost microelectromechanical systems accelerometers located in schools in the Los Angeles, California, region...
FIGURES | View All (9)
Journal Article
Journal: Geophysics
Published: 01 November 2018
Geophysics (2018) 83 (6): B339–B353.
...Bojan Brodic; Alireza Malehmir; André Pugin; Georgiana Maries ABSTRACT We deployed a newly developed 3C microelectromechanical system-based seismic land streamer over porous glacial sediments to delineate water table and bedrock in Southwestern Finland. The seismic source used was a 500 kg vertical...
FIGURES | View All (13)
Journal Article
Published: 12 September 2018
Seismological Research Letters (2018) 89 (6): 2314–2321.
...Kai‐Shyr Wang; Wei‐An Chao; Himanshu Mittal; Yih‐Min Wu ABSTRACT Recently, the P ‐wave‐alert‐device ( P ‐alert) network, which is a dense array of microelectromechanical system (MEMS) accelerometers that was developed and installed by National Taiwan University for the purposes of earthquake early...
FIGURES | View All (6)
Journal Article
Journal: The Leading Edge
Published: 01 July 2016
The Leading Edge (2016) 35 (7): 586–588.
...Jason Criss Abstract Digital sensors based on microelectromechanical system (MEMS) technology first emerged on the market in the late 1990s and were being utilized on commercial projects as early as 2002. While these sensors were lauded for their unique technical properties, the reviews...
FIGURES | View All (8)
Journal Article
Journal: The Leading Edge
Published: 01 November 2014
The Leading Edge (2014) 33 (11): 1234–1242.
...Jérôme Laine; Denis Mougenot Abstract A new generation of accelerometers based on a microelectromechanical system (MEMS) can deliver broadband (0 to 800 Hz) and high-fidelity measurements of ground motion even at a low level. Such performance has been obtained by using a closed-loop configuration...
FIGURES | View All (7)
Journal Article
Published: 07 January 2014
Bulletin of the Seismological Society of America (2014) 104 (1): 184–192.
... Network ( QCN ) that connects low‐cost microelectromechanical systems accelerometers to a network of volunteer‐owned, Internet‐connected computers. Following the 3 September 2010 M 7.2 Darfield, New Zealand, earthquake we installed over 180 QCN sensors in the Christchurch region to record the aftershock...
FIGURES | View All (6)
Journal Article
Journal: Geophysics
Published: 27 May 2019
Geophysics (2019) 84 (4): B259–B268.
... chalk units. A 45 kg accelerated weight-drop source, in combination with dense receiver spacing using microelectromechanical sensors mounted on a streamer and 48 planted geophones, was used for data acquisition. The profile runs subparallel to the cliffs of Stevns, and the recorded signal reaches...
FIGURES | View All (8)
Journal Article
Journal: The Leading Edge
Published: 01 September 2019
The Leading Edge (2019) 38 (9): 706–714.
... functions (e.g., the node battery is dual purpose and designed to provide power and to act as the sensor reaction mass). To further reduce size and weight, the moving-coil geophone was replaced with a piezoelectric accelerometer that does not require power in contrast to a microelectromechanical system...
FIGURES | View All (7)
Image
Acoustic signal amplitude, expressed in arbitrary units (a.u.), measured 20...
Published: 16 December 2020
Figure 9. Acoustic signal amplitude, expressed in arbitrary units (a.u.), measured 20 m away from the Pisciarelli fumarole between 20:00 and 22:30 (UTC) on 6 December 2019, by MEMS, microelectromechanical systems.
Image
The CSN Sensor Package. Inside the box the Raspberry‐Pi 3b and the three‐ax...
Published: 13 November 2019
Figure 2. The CSN Sensor Package. Inside the box the Raspberry‐Pi 3b and the three‐axis microelectromechanical systems (MEMS) sensor can be seen. They are fastened to the box with two‐sided adhesive pads. The external connections are to power on the Internet. The color version of this figure
Journal Article
Published: 03 August 2016
Seismological Research Letters (2016) 87 (5): 1050–1059.
... by the National Taiwan University (NTU) with 581 microelectromechanical system ( MEMS ) accelerometers is in operation ( Wu et al. , 2013 ; Wu, 2015 ). During this event, the P ‐alert network recorded high‐quality strong‐motion signals and produced detailed shaking maps within 2 min of the occurrence...
FIGURES | View All (10)
Journal Article
Published: 06 December 2017
Seismological Research Letters (2018) 89 (1): 99–107.
... from inexpensive microelectromechanical systems sensors that are hosted by volunteers ( Cochran et al. , 2009 ; Clayton et al. , 2011 , 2015 ; Given et al. , 2014 ; Lawrence et al. , 2014 ). A large‐scale network‐based EEW system, such as ShakeAlert, has five major components: a dense...
FIGURES | View All (4)