Abstract: A temperature distribution measurement system includes an optical fiber, a laser light source optically connected to the optical fiber, a photodetector configured to detect light backscattered in the optical fiber, and a temperature distribution measurement unit configured to perform correction calculation using a transfer function on a measured temperature distribution obtained from an output from the photodetector. The temperature distribution measurement unit acquires an actual temperature distribution in a location where the optical fiber is laid and determines appropriateness of the transfer function by computing a difference between the measured temperature distribution after the correction and the actual temperature distribution.

Abstract: A management system includes labels disposed on a management target at respective positions different from each other each of the labels including display parts, the display parts changing respective colors depending on different levels of temperature or humidity, the display parts changing coloring positions depending on the level; an image obtaining unit outputting image data indicating an image of the labels captured by the imaging device; an image processing part performing first or second image processing, the first image processing transforming the image data so that a difference in a number of pixels corresponding to each of the labels among the labels in image data after the transformation is less than that before the transformation, the second image processing recognizing an image of the display parts; and a level detector detecting the level of temperature or humidity based on brightness information of pixels corresponding to the display parts.

Abstract: An abnormality detection system includes an optical fiber, a backscattered light detection unit, and a data processing unit. The detection unit is connected to one end and the other end of the optical fiber and configured to acquire a first intensity distribution of backscattered light by causing light to enter the optical fiber from the one end, and to acquire a second intensity distribution of backscattered light by causing light to enter the optical fiber from the other end. The processing unit is configured to calculate the product of a value obtained by applying a first FIR filter to the first intensity distribution, and a value obtained by applying a second FIR filter to the second intensity distribution, for each of locations on the optical fiber in the length direction thereof, and to determine whether or not abnormality is present based on the result of the calculation.

Abstract: A temperature measuring system includes a laser light source to emit optical pulses, an optical fiber, arranged to pass through a plurality of measuring points, and input with the optical pulses, and a measuring device to detect back-scattering light output from the optical fiber and measure a temperature at the plurality of measuring points, to acquire measured temperature data. The measuring device computes corrected temperature data by varying a degree of smoothing the measured temperature data in a distance direction of the optical fiber, according to a correlation between the measured temperature data and a transfer function peculiar to the temperature measuring system.

Abstract: A temperature measuring system includes a laser light source that emits optical pulses, an optical fiber, arranged to pass through a plurality of temperature measuring points, and input with the optical pulses, and a measuring device that detects back-scattering light output from the optical fiber and measures a temperature at the plurality of measuring points, to acquire measured temperature data. The measuring device computes corrected temperature data by varying a degree of averaging of the measured temperature data in a time direction, according to whether a time-sequential difference temperature data have a spatial correlation or a time correlation within a range that uses a target position of the optical fiber as a reference.

Abstract: A management system includes labels disposed on a management target at respective positions different from each other each of the labels including display parts, the display parts changing respective colors depending on different levels of temperature or humidity, the display parts changing coloring positions depending on the level; an image obtaining unit outputting image data indicating an image of the labels captured by the imaging device; an image processing part performing first or second image processing, the first image processing transforming the image data so that a difference in a number of pixels corresponding to each of the labels among the labels in image data after the transformation is less than that before the transformation, the second image processing recognizing an image of the display parts; and a level detector detecting the level of temperature or humidity based on brightness information of pixels corresponding to the display parts.

Abstract: An optical fiber cord includes: an optical fiber; and a cover material covering the optical fiber, the cover material being formed by braiding a plurality of yarns. Moreover, an abnormality detection system includes: the optical fiber covered with the cover material formed by braiding the plurality of yarns; a scattered light detector configured to detect scattered light occurring in the optical fiber and output data on intensity distribution in a longitudinal direction of the optical fiber; and a data processor configured to determine the presence or absence of an abnormality based on the data outputted from the scattered light detector.

Abstract: An abnormality detection system includes an optical fiber, a backscattered light detection unit, and a data processing unit. The detection unit is connected to one end and the other end of the optical fiber and configured to acquire a first intensity distribution of backscattered light by causing light to enter the optical fiber from the one end, and to acquire a second intensity distribution of backscattered light by causing light to enter the optical fiber from the other end. The processing unit is configured to calculate the product of a value obtained by applying a first FIR filter to the first intensity distribution, and a value obtained by applying a second FIR filter to the second intensity distribution, for each of locations on the optical fiber in the length direction thereof, and to determine whether or not abnormality is present based on the result of the calculation.

Abstract: A power measurement system includes: a power temperature converter attached to a power supply line of an electric instrument and having a temperature changed corresponding to a current flowing through the power supply line; a temperature measurement apparatus configured to measure the temperature of the power temperature converter; and an analyzer configured to analyze power consumed by the electric instrument by using a measurement result of the temperature of the power temperature converter obtained by the temperature measurement apparatus.

Abstract: A current measurement device is provided which includes a casing configured to surround a cable and a magnetic sensor. The magnetic sensor is configured to be movable along the periphery of the cable within the casing and to output an output signal varying according to a current value of a current flowing through the cable.

Abstract: An abnormality detection system includes an optical fiber, a backscattered light detection unit, and a data processing unit. The detection unit is connected to one end and the other end of the optical fiber and configured to acquire a first intensity distribution of backscattered light by causing light to enter the optical fiber from the one end, and to acquire a second intensity distribution of backscattered light by causing light to enter the optical fiber from the other end. The processing unit is configured to calculate the product of a value obtained by applying a first FIR filter to the first intensity distribution, and a value obtained by applying a second FIR filter to the second intensity distribution, for each of locations on the optical fiber in the length direction thereof, and to determine whether or not abnormality is present based on the result of the calculation.

Abstract: A temperature measurement system includes an optical fiber, a temperature distribution measurement apparatus, and a data processing apparatus. The temperature distribution measurement apparatus is configured to detect backscattered light by causing light to enter the optical fiber, and acquire the temperature distribution of the optical fiber in the length direction thereof based on the result of the detection. The data processing apparatus is configured to store therein the temperature distribution acquired by the temperature distribution measurement apparatus, perform signal processing on a difference temperature distribution obtained by computing the difference between a current temperature distribution and a past temperature distribution, and determine whether or not abnormality is present based on the result of the signal processing.

Abstract: An abnormality detection system includes an optical fiber, a Raman scattered light detection unit, and a data processing unit. The detection unit is configured to detect Stokes light and anti-Stokes light which are generated in the optical fiber and to output data on the intensity distribution of the Stokes light in the optical fiber in the length direction thereof and data on the intensity distribution of the anti-Stokes light in the optical fiber in the length direction. The processing unit is configured to calculate the product of a value obtained by applying an FIR filter to the intensity distribution of the Stokes light, and a value obtained by applying the FIR filter to the intensity distribution of the anti-Stokes light for each of locations on the optical fiber in the length direction, and to determine whether or not abnormality is present based on the result of the calculation.

Abstract: An optical fiber is provided with a first measurement portion and a second measurement portion. The first measurement portion is provided with a heater and a hygroscopic layer made of a resin in which a material having a deliquescent property is dispersed. Meanwhile, the second measurement portion is provided with the heater and a non-hygroscopic layer having a lower moisture absorption capacity than the capacity of the hygroscopic layer. The heater is brought into heat generation by being supplied with electric power, and temperatures at the second measurement portion and temperatures at the first measurement portion are measured with a temperature measurement device. Then, an analyzer calculates a humidity based on an integrated value of differences between the temperatures at the first measurement portion and the temperatures at the second measurement portion.

Abstract: A panel-type input device including a pair of electrode plates, each electrode plate having a substrate and a conductive coat provided on a surface of the substrate, the conductive coat of each electrode plate being formed from a conducting polymer. The conductive coat of each electrode plate includes a detecting area adapted to detect a touch input and an inoperative area disposed adjacent to the detecting area, the inoperative area having a surface resistivity higher than a surface resistivity of the detecting area. A parallel electrode pair adapted to apply a voltage to the conductive coat is formed in the detecting area, and conductors connected to the parallel electrode pair are formed in the inoperative area. The inoperative area insulates the conductors from the detecting area.

Abstract: An electrolyte composition that shows low methanol cross-over and exhibits high proton conductivity when used as a solid electrolyte for solid polymer fuel cells or the like, and a solid electrolyte membrane and a solid polymer fuel cell that use the electrolyte composition are provided. This electrolyte composition comprises a perfluorocyclobutane-containing polymer having a specific structure. High proton conductivity is provided by sulfonic acid groups connected to the benzene rings. Reduction of methanol crossover is realized by introduction of a rigid structure with aromatic rings, or a combination o a rigid structure with aromatic rings and a three-dimensional cross-linked structure.

Abstract: A panel-type input device including a pair of electrode plates, each electrode plate having a substrate and a conductive coat provided on a surface of the substrate, the conductive coat of each electrode plate being formed from a conducting polymer. The conductive coat of each electrode plate includes a detecting area adapted to detect a touch input and an inoperative area disposed adjacent to the detecting area, the inoperative area having a surface resistivity higher than a surface resistivity of the detecting area. A parallel electrode pair adapted to apply a voltage to the conductive coat is formed in the detecting area, and conductors connected to the parallel electrode pair are formed in the inoperative area. The inoperative area insulates the conductors from the detecting area.

Abstract: A temperature distribution measurement system includes an optical fiber, a laser light source optically connected to the optical fiber, a photodetector configured to detect light backscattered in the optical fiber, and a temperature distribution measurement unit configured to perform correction calculation using a transfer function on a measured temperature distribution obtained from an output from the photodetector. The temperature distribution measurement unit acquires an actual temperature distribution in a location where the optical fiber is laid and determines appropriateness of the transfer function by computing a difference between the measured temperature distribution after the correction and the actual temperature distribution.

Abstract: An optical fiber is provided with a first measurement portion and a second measurement portion provided with covering layers different at least in any one of heat capacity and heat conductivity. Then, the first measurement portion and the second measurement portion are located in the same measurement position and light is inputted from a temperature measurement device into the optical fiber. Thereafter, the temperature measurement device receives backscattered light generated inside the optical fiber to measure temperature distribution in a longitudinal direction of the optical fiber. An analyzer analyzes a variation over time of the temperature distribution outputted from the temperature measurement device to calculate a temperature and a wind velocity in a measurement position where the first measurement portion and the second measurement portion are located.

Abstract: A temperature distribution measurement apparatus includes a laser light source optically connected to an optical fiber, a photodetector configured to detect light backscattered in the optical fiber, and a temperature distribution measurement unit configured to obtain a true measured temperature distribution by performing correction calculation using a transfer function on a temporary measured temperature distribution obtained based on an output from the photodetector. The temperature distribution measurement unit stores therein data on a transfer function set for each entire length of the optical fiber and for each longitudinal position in the optical fiber. Then, when the length of the optical fiber is changed, the temperature distribution measurement unit changes the transfer function to be used in the correction calculation by using the data on the transfer function.