Application of two-output port fiber coupler as gasoline level sensor

Abstract

Novel dynamic balance test is sensitive to alpine skier's expertise level.Application of cross correlation method for analysing rhythmic COP movements.

Liquid level sensor using two fiber bundles

“…The z 01 and z 02 values are of the same magnitude of 7.7 mm. As in previous studies [10,11], the use of membranes as a sensor component causes the sensor output characteristics to produce hysteresis. The nature of the membrane relaxation after the pressure is the cause of the hysteresis.…”

“…Optical devices based on optical fiber have been widely developed to detect liquid level. These devices including fiber Bragg gratings [1][2][3], photonic crystal fiber [4], fiber bundle [5,6], and fiber coupler [7,10,11]. The working principle of fiber Bragg grating and photonic crystal fiber is based on wavelength modulation in detecting liquid level.…”

“…The reflector shift is observed from change in the reflected light intensity of the reflector entering an output port of the fiber coupler. The working area of the sensor increases to almost twice when two output ports of fiber coupler are used as probe sensor [11]. The detection mechanism is performed by two probe sensors in stages according to the working area.…”

Performance comparison of liquid level sensors using fiber coupler and fiber‐bundled probe

“…The detection is performed by moving the probe to find the presence of liquid due to the probe interaction with the liquid will change the intensity of the reflected light received by the fiber bundle. Based on the displacement sensor and utilizing the principle of hydrostatic pressure, we have developed liquid (gasoline) level sensor using an output port as well as two output ports fiber coupler …”

“…Based on the displacement sensor and utilizing the principle of hydrostatic pressure, we have developed liquid (gasoline) level sensor using an output port 7 as well as two output ports fiber coupler. 8 Research results have shown that fiber coupler, 9 a pair, 10 and concentric 11 bundled probe can be applied as a displacement sensor. Based on displacement sensor and using the principle of hydrostatic pressure, in this article, liquid level sensor is demonstrated using fiber coupler, a pair, and concentric bundled probes in the same experimental condition.…”