Typical ranges of the 12047-371X seismic detector
are 50 metres for vehicles and 15 metres for personnel; for the 12047-372X magnetic detector the figures are respectively 25 and three and 100 and 50 metres for the 12047-373X passive infrared (the long-range version of the latter doubles those figures).
Virginia Military Institute will pitch its extremely low-frequency seismic detector
, a wireless communication system with a signal that can pass through the ground.
One of these was a seismic detector
which listened to moonquake activity and could send signals to the Nasa control room as soon as Aldrin set it up.
The seismic detector
uses high-frequency waves to displace soil and objects in it by less than 0.
In preparation of the heist, he opened a security box at the bank and placed a loud alarm clock inside, set- ting it to go off at midnight in order to check the existence of any acoustic or seismic detectors
0147 - award: delivery installation boxes seismic detectors
The team then left the area to carry on with planned research elsewhere but three days later were cautioned that seismic detectors
on the Cook Islands had detected violent activity around the volcano over a five-day period.
Recently, many seismic observatories have been established, and seismic networks of three-component seismic detectors
with broad-band frequency characteristics have been used for seismic observations, allowing the representation of the 3-D particle motion of seismic waves by the locus of the three-component signal.
New from Bosch Security Systems of Fairport, New York, are two new safe and vault seismic detectors
, the ISN-SM 50 and ISN-SM-80.
If seismic detectors
were attached to DSL lines, a readout of the total damage area, using infrared video cameras sending freeze-frame pictures by e-mail, could tell rescuers where heavily damaged areas are within buildings, what damage has occurred and where possible openings are located so rescue workers can save trapped victims.
Guralp Systems makes hi-tech seismic detectors
for areas in earthquake regions, with vulnerable populations and industries.