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.


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: 2016-06-29

In order to remove dust attached to a filter member 40 to surely clean the filter member 40, an analysis apparatus 100 includes: a sample containing part 10 that contains a sample; the filter member 40 through which gas produced from the sample heated in the sample containing part 10 passes; and a gas flow path L1 adapted to lead the gas having passed through the filter member 40 to an analyzer. In addition, the filter member 40 is formed in a tubular shape, and in one end part of the filter member 40, a gas lead-out port 40a connecting to the gas flow path L1 is formed. Further, it is configured that the gas passes through a side wall part 42 of the filter member 40 from outside to inside, and flows from the gas lead-out port 40a to the gas flow path L1.


The present invention is made focusing on the viscoelasticity of a sample, which is completely different from a conventional idea, and provides an optical analysis cell 100 that in order to easily make the thickness of the sample X uniform as well as making a pair of light transmitting plates 10 parallel to each other without the use of any spacer, includes the pair of light transmitting plates 10 that sandwich and hold the sample X having predetermined viscoelasticity between mutually opposed inward surfaces 10a. In addition, the optical analysis cell 100 further includes a distance fixing member 20 having a pair of opposed surfaces 21a and 22a provided separately from each other by a predetermined distance. Also, it is configured that the respective light transmitting plates 10 receive the elastic force of the sample X, and thereby outward surfaces 10b on the sides opposite to the inward surfaces 10a of the respective light transmitting plates 10 are pressed against corresponding respective opposed surfaces 21a and 22a to fix the separation distance between the inward surfaces 10a.


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