See Time Domain Reflectometry.
Time Domain Reflectometry. A technique used to track faults in networks, such as cable breaks or loose connections. A pulse of a known shape is transmitted over the network and an echo is created when the pulse hits an obstacle or cable end. The time lapsed between the sending of the pulse and receiving the echo can be used to locate the origin of the echo and therefore the break. Sophisticated testing equipment is available to perform this test and to analyze the results.
A system that uses a reflectometer to generate an electromagnetic pulse that is applied to a coaxial system. The resulting reflection waveform is analyzed and stored. The elapsed travel time and pulse reflection amplitude contain information that can be used to determine soil volumetric water content, soil bulk electrical conductivity, rock mass deformation, or other time-domain measurements.
Time Domain Reflectometry. A diagnostic technology in which a pulse of known amplitude and duration is sent along a cable. When an open or short is detected, a pulse reflects back to the device generating the signal. The device then measures how long the round trip took and converts this to distance using the cable's NVP.
TIME DOMAIN REFLECTOMETER. A piece of equipment which sends a radar pulse down a cable pair to detect an impedance mismatch or discontinuity.
Time Domain Reflectometer (used to measure cable length based on reflection time of a generated signal)
Time domain reflectometry. A device, which measures electrical characteristics of wideband transmission systems. Commonly used to measure soil moisture content.
time domain reflectometry. sends out pulses of energy and then times the interval until the reflections are received. If the velocity of propagation is known, the distance to deformations can be determined.
Time Domain Reflectometer. A device which a board house can use for measuring characteristic impedance of a conductor on a printed board, thus insuring an accurate build for controlled impedance.
Time Domain Reflectometer. A device for measuring the length of cables by "bouncing" a signal off the far end. The NVP must be known and programmed into the machine.
See Time Domain Reflectometer.
Time Domain Reflectometer. A device used to test for discontinuities (impedance mismatches) on coaxial cables. Also known as fault locator.
Time Domain Reflectrometry