17 event, dubbed GW170817, this alert was somewhat delayed when, due to a glitch, the gravitational-wave signal first noted by the Hanford detector was not immediately evident in Livingston data, but the Hanford signal triggered a deeper analysis of the data that quickly located the signature in the second detector
. "Fermi's observation of a gamma-ray burst at nearly the same time added to the excitement and urgency of the moment," notes Weinstein.
Two Zener Diode detectors were oriented in inertial space so that the flow passing first through one detector and subsequently the second detector
would produce correlated current output.
When the device passes a second detector
, an algorithm is performed using the time stamps and the unique identifier to arrive at the travel time that is displayed on the boards," Ms.
The reader includes an opening into which the holographic element may be positioned, a light source, a first detector positioned at a first predetermined distance from the location of the holographic element when the holographic element is positioned in the opening, and a second detector
positioned at a second predetermined distance from the location of the holographic element when the holographic element is positioned in the opening.
Likewise, the volume from the last pulse to when the second detector
is activated can be determined.
When the shadow of a bullet passes over the detector it starts a fast clock, and when the second detector
is tripped it stops.
To show that not more than one photon was produced per pulse, the photon stream was directed onto a beam splitter, which directed half of the photons to a detector and the other half to a second detector
. A single photon will be detected by one of the detectors.
The second detector
did work but no-one responded to it in time.
In a two-storey home, fit one detector in the hallway just above the foot of the stairs and a second detector
on the upstairs landing.
A second detector
warned him his Cardiff flat was again filling with gas months later.
The second detector
type has no integral pad and is optimized for measuring devices with wide dynamic range such as high value attenuators or high performance filters where a low noise floor is required to see the true characteristics of the rejection band.