Health.Zone Web Search

Search results

1. Results from the Health.Zone Content Network

2. Electromagnetic log - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_Log

   Electromagnetic log. An Electromagnetic Log, sometimes called an "EM log", is an electronic sensor which measures the speed of a vessel through sea water. Like many other technologies, its name derives from the traditional chip log. It makes use of Faraday's law of induction by measuring the EMF induced in water moving through a magnetic field ...

3. Chip log - Wikipedia

   en.wikipedia.org/wiki/Chip_log

   A chip log consists of a wooden board attached to a line (the log-line). The log-line has a number of knots at uniform intervals. The log-line is wound on a reel so the user can easily pay it out. Over time, log construction standardized. The shape is a quarter circle, or quadrant with a radius of 5 inches (130 mm) or 6 inches (150 mm), [1] and ...

4. Log-space transducer - Wikipedia

   en.wikipedia.org/wiki/Log-space_transducer

   In computational complexity theory, a log space transducer (LST) is a type of Turing machine used for log-space reductions . A log space transducer, , has three tapes: A read-only input tape. symbols). A write-only, write-once output tape. will be designed to compute a log-space computable function (where is the alphabet of both the input and ...

5. Spectrum analyzer - Wikipedia

   en.wikipedia.org/wiki/Spectrum_analyzer

   A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that most common spectrum analyzers measure is electrical; however, spectral compositions of other signals, such ...

6. Variable reluctance sensor - Wikipedia

   en.wikipedia.org/wiki/Variable_reluctance_sensor

   A variable reluctance sensor (commonly called a VR sensor) is a transducer that measures changes in magnetic reluctance. When combined with basic electronic circuitry, the sensor detects the change in presence or proximity of ferrous objects. With more complex circuitry and the addition of software and specific mechanical hardware, a VR sensor ...

7. Piezoelectric sensor - Wikipedia

   en.wikipedia.org/wiki/Piezoelectric_sensor

   Piezoelectric sensor. A piezoelectric disk generates a voltage when deformed (change in shape is greatly exaggerated) A piezoelectric sensor is a device that uses the piezoelectric effect to measure changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge. The prefix piezo- is Greek for 'press ...