Minami-rinkan, Japan
Minami-rinkan, Japan

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Patent
Horiba Ltd. | Date: 2016-12-01

A gas analysis device includes a probe tube, a flange, an optical system member, and heaters. The probe tube includes an optical path through which measurement light is projected onto a prescribed measurement region of a sample gas flowing through a flue and/or is received from the measurement region. The flange is fixed to the outer periphery of the probe tube and is attached to a pipe side wall. The optical system member projects measurement light onto the sample gas S within the measurement region and/or receives measurement light from the measurement region. The heaters are disposed within the flange and heats the portion where the probe tube and flange are fixed to each other.


In order to make it possible to accurately measure the HF concentration in a BHF solution in a low concentration region using a simple structure, there are provided a relationship storage unit that stores relationships between a pH of a BHF solution and an HF concentration, a pH meter that measures the pH of the BHF solution, and a concentration calculation unit that refers to relationships stored in the relationship storage unit, and calculates the HF concentration from the pH values measured by the pH meter.


The present invention makes possible to correct the output of (prepare a calibration curve for) a photodetector 4 used for a spectroscopic analyzer 100 or a spectroscope, in a short period of time with a simple configuration. The present invention is adapted to make light beams emitted from a light source 1 enter the photodetector 4 both when interposing an optical element 6 having known characteristics and when not interposing the optical element 6, and acquire a first output value and a second output value that are the output values of the photodetector 4 with respect to each of light beams that respectively have predetermined multiple wavenumbers and are included in the incident light beams ,and obtain an arithmetic expression for calculating intensity of incident light beams from an output value of the photodetector, using parameters that are a ratio between the first output value and the second output value at each of the predetermined wavenumbers and the wavenumber transmission or reflection characteristic of the optical element.


Patent
Horiba Ltd. | Date: 2017-02-08

A purpose of this invention is to provide an electrode that is extremely preferably used for measuring a pH of a cell culture medium. This electrode is designed to be inserted into an insertion bore arranged on a container into which a sample solution as being a measuring object is put, and comprises an internal electrode, a storage that houses the internal electrode, a gelled or liquefied internal liquid that is filled into the storage so as to contact the internal electrode, and a sensor part that is electrically connected to the internal electrode through the internal liquid and arranged at a distal end surface of the storage as to detect a electric potential of the sample solution. The storage has a positioning surface for positioning the storage at a mounting position at which the inner wall surface of the container and the distal end surface of the storage are on the same plane.


Patent
HORIBA Ltd. and Daihatsu Motor Co. | Date: 2016-10-26

The present invention relates to an oil mist detecting device (1) that can reduce the intensity of undesired reflected light to prevent the deterioration of detection accuracy. The oil mist detecting device (1) is one that includes a container (6, 6a, 6b) having: a containing space (7, 7a, 7b) containing a light emitting element (4) and a light receiving element (5); and an introduction space (8) into which oil mist is introduced, and detects the oil mist by in the container (6, 6a, 6b), irradiating the oil mist with light emitted from the light emitting element (4) and receiving light reflected or scattered by the oil mist by the light receiving element (5). In addition, the oil mist detecting device (1) includes a lens (9, 15, 16) that separates between the containing space (7, 7a, 7b) and the introduction space (8) and is formed with a bottom-equipped groove (18) opened on a containing space side. Further, the lens (9, 15, 16) has a first light guiding region (19a) adapted to guide the light emitted from the light emitting element (4) to the introduction space (8) as one part resulting from division by the bottom-equipped groove (18), as well as, as the other part resulting from the division by the bottom-equipped groove (18), having a second light guiding region (19b) adapted to guide the light reflected or scattered by the oil mist to the light receiving element (5).


Patent
Kabushiki Kaisha Pilot Corporation and Horiba Ltd. | Date: 2016-12-07

In order to improve the endurance of this internal solution for a reference electrode beyond that in the prior art, the solution is made to contain a copolymerized material of a crosslinker having a plurality of non-acrylamide functional groups, and a non-acrylamide monofunctional hydrophilic monomer.


In order to provide an exhaust gas sampling apparatus (100) that makes it possible to simplify the entire system using a simple structure flow rate control mechanism having a small variable flow rate range as well as making the accuracy of an exhaust gas dilution ratio higher than before, the exhaust gas sampling apparatus is configured as an exhaust gas sampling apparatus that makes a multistage dilution. In addition, the exhaust gas sampling apparatus is configured to, given that a dilution ratio determined by an n-th diluter in a dilution flow path at an n-th stage as a final stage is R, make dilution ratios determined by diluters in dilution flow paths at the respective stages other than the n-th stage as the final stage substantially equal to (R + 1).


A driving mode display device of this invention makes it possible to more smoothly and efficiently conduct a vehicle exhaust gas measurement test using a chassis dynamometer and also makes it possible to further improve the security. The driving mode display device comprises an operational state display part 8 that displays an operational state of equipment that is necessary for an exhaust gas measurement test to a test driver and an input receive part 9 that receives an input that is for the test driver to control an operation of the equipment.


The present invention is adapted to make light beams emitted from a light source enter a photodetector both when interposing an optical element having known characteristics and when not interposing the optical element, and acquire a first output value and a second output value that are the output values of the photodetector with respect to each of light beams that respectively have predetermined multiple wavenumbers and are included in the incident light beams, and obtain an arithmetic expression for calculating intensity of incident light beams from an output value of the photodetector, using parameters that are a ratio between the first output value and the second output value at each of the predetermined wavenumbers and the wavenumber transmission or reflection characteristic of the optical element.


Patent
HORIBA Ltd. | Date: 2016-10-26

In order to surely remove deposits attached on the inner wall of an exhaust gas pipe (10), an exhaust gas measurement system (100) that measures components contained in the exhaust gas of an internal combustion engine is adapted to include: an exhaust gas piping member (10) into which the exhaust gas is introduced; a purge gas supply mechanism (50) adapted to supply purge gas to the exhaust gas piping member (10); a heating mechanism (60) adapted to heat the exhaust gas piping member (10); and a control mechanism (70) adapted to, after the heating mechanism (60) has heated the exhaust gas piping member (10) or the exhaust gas flowing through the exhaust gas piping member (10) to a predetermined temperature, control the purge gas supply mechanism (50) to start supplying the purge gas.

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Loading HORIBA Ltd. collaborators