Horiba, Ltd.

Kazuya Tsurumi

Takashi Matsuyama

The present invention provides a brake dust measurement system that can accurately measure an amount of brake dust produced. The brake dust measurement system, in which a specimen having a brake is placed in a chamber and which measures brake dust produced from the brake, includes a sampling unit that samples air inside the chamber, an elemental analysis unit that performs elemental analysis of sampled air sampled by the sampling unit, a storage unit that stores elemental content information of a single or multiple elements contained in the brake, and a calculation unit that calculates an amount of brake dust contained in the sampled air on the basis of elemental analysis results of the elemental analysis unit and the elemental content information.

Brake dust measurement system and brake dust measurement method

To provide an exhaust gas analysis system that can accurately analyze exhaust gas discharged from an engine of a hybrid vehicle and can also be applied to a test that continues sampling into a sampling bag over a predetermined sampling time, a sampling apparatus is adapted to include a main flow path through which the exhaust gas flows, a sampling flow path that is connected to the main flow path to sample the exhaust gas into a sampling bag, and a constant flow rate mechanism that is provided in the main flow path and configured to be able to change a main flow rate that is an exhaust gas flow rate through the main flow path. Additionally, a control device is adapted to control the constant flow rate mechanism to change the main flow rate and change a sampling flow rate that is an exhaust gas flow rate through the sampling flow path.

Exhaust gas sampling apparatus, exhaust gas analysis system, exhaust gas sampling method, and exhaust gas sampling program

An NO.sub.x analyzer capable of reducing maintenance operations for removing solid substances from the analyzer, and for obtaining an analytical value of improved reliability for sample gases flowed through the analyzer is provided. A sample gas supply passage on the downstream side of an NO.sub.x convertor is provided with a first capillary therein; a sample gas supply passage between the first capillary and the NO.sub.x convertor is provided with an overflow passage having a second capillary branch connected therewith; a sample gas supply passage on a downstream side of the first capillary is provided with a diluent air supply passage having a third capillary therein and also branch connected with the sample gas supply passage. At least the confluence of the first capillary, the second capillary, and the diluent supply passage with the sample gas supply passage is arranged within a heating zone of the NO.sub.x analyzer.

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Kyoto, Japan

Kazuya Tsurumi