Horiba, Ltd.

Naoyuki Matsumoto

Toshiyuki Nomura

Ichiro Asano

Hiroji Kohsaka

Kennosuke Kojima

Yuiji Tsujioka

Naohiro Osuga

A multi-component analyzing apparatus in which infrared light is irradiated to a measuring-subject sample S which is constituted by either measuring-subject components whose sorts or quantities are limited or by a mixed article made of said measuring-subject components; intensity of infrared light having respective wavelength ranges which are fitted to infrared absorption spectra of the respective measuring-subject components among such infrared light penetrated through the measuring-subject sample S is measured by employing a plurality of detectorstocorresponding thereto; and said multi-component analyzing apparatus is comprised of a calculation processing unitfor analyzing the infrared light intensity of the respective wavelength ranges so as to acquire concentration xto xof the respective measuring-subject components; wherein the calculation processing unitis capable of executing an analyzing process program P for executing analysis operations of the concentration xto xof the respective measuring-subject components by solving simultaneous equations which are constituted by equations having mutual interference correction terms used to correct interference adverse influences occurred among the respective measuring-subject components.

Multi-component analyzing apparatus

A radiant thermometer for detecting infrared rays coming from an object along an optical axis to determine its temperature is provided with an improved aiming system. An exterior housing supports an interior housing that mounts the detector having an opening for receiving the infrared rays. A visible sighting light source is provided in the exterior housing behind the detector. A peripheral lens system is mounted between the interior and the exterior housing to provide a cone shaped transmission of light having a larger field angle than a field angle of the detector. The cone shaped transmission of light is capable of being focused on the optical axis for aiming the radiant thermometer.

Radiant thermometer with aiming system

A processing circuit for use with DC-voltage-output type sensors comprising: a preamplifier; an automatic polarity-switching means coupled to the sensor and the preamplifier for switching the connection condition between a non-polarity-inversion condition and a polarity-inversion condition; and a controlling-measuring means for controlling the automatic polarity-switching means in carrying out the switching alternately between the non-polarity-inversion condition and the polarity-inversion condition, and for measuring the difference between the output of the preamplifier under the non-polarity-inversion condition and the output of the preamplifier under the polarity-inversion condition, thereby cancelling the effects of the input offset voltage of the preamplifier and the offset voltage of the preamplifier and the offset voltage generated by the input bias current and the resistance of said DC-voltage-output type sensor.

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Kyoto, Japan

Naoyuki Matsumoto