He typed in a command on the keyboard, and the playback fed into the oscilloscope 's fluorescent cathode-ray screen.
The signal was isolated from the excitation laser beam with a glass filter and a pinhole, detected by a photomultiplier tube, and recorded by a digital oscilloscope .
This varying current can then be used to activate a meter or oscilloscope or, after suitable processing, make an audio tape or some such permanent record.
The square pulses were monitored displaying the signal in an oscilloscope .
An external trigger is provided for analogue signal analysis using an oscilloscope .
In single-channel experiments, the membrane current was monitored with an oscilloscope and recorded on a chart recorder for data analysis by hand.
On an oscilloscope , standard alternating current power looks like a wave with peaks and valleys occurring 60 times a second.
During testing, the current was continuously monitored on an oscilloscope positioned adjacent to the testing chamber, thereby allowing constant observation of the animals as well.
Single-channel current fluctuations were displayed on an oscilloscope and recorded on Digital Audio Tape.
The output signals from the signal conditioner were also displayed on a digital oscilloscope for online evaluation.