Yokogawa Electric Corporation

Denso Wave Corporation

Ihi Corporation

Masanori Okada

Hideyuki Tanaka

Koji Konosu

Tadao Nojiri

Atsushi Koike

Hajime Nakamura

Yuji Kobayashi

Kunihiko Ito

Kenichi Yoshida

Hiroaki Mizukoshi

Tatsuya Fukui

Satoshi Kusano

Atsushi Tezuka

Kazuhiko Shinagawa

Kenkichi Murata

Tsuyoshi Nishiyama

Mitsushi Maeyama

Fumiaki Ogino

A spectrometry device includes a switch and a converter. The switch acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum and switches between outputting the first reception signal and outputting the second reception signal based on control by a controller. The converter converts the first reception signal or the second reception signal output from the switch into a digital signal.

Spectrometry device and spectrometry method

A spectrometry device includes a controller that: causes first irradiated light and second irradiated light to be irradiated from a first light emitter and a second light emitter at mutually different timings; stores information relating to a first light reception signal and information relating to a second light reception signal in a storage at mutually different timings, in synchronization with irradiation timings of the first irradiation light and the second irradiation light; acquires information relating to a first optical spectrum based on the information relating to the first light reception signal stored in the storage during a first time period; and acquires information relating to a second optical spectrum based on the information relating to the second reception signal stored in the storage during a second time period.

A spectrometry device includes a first converter that processes a reception signal based on an irradiation light from a first emitter, a second converter that processes a reception signal based on an irradiation light from a second emitter, and a controller that controls the first emitter and the second emitter. The reception signal based on the irradiation light irradiated from the first emitter includes a first reception signal and a second reception signal that each include information that relates to an optical spectrum. When the controller stops the operation of the second emitter, the first converter converts the first reception signal into a first digital signal and the second converter converts the second reception signal into a second digital signal.

Spectrometry device

A sweeping signal generating device includes a first converter that outputs a sweeping signal having a first offset value added to or subtracted from a sweeping standard level, a second converter that outputs an offset signal having a second offset value corresponding to the first offset value, and an adder circuit that adds the sweeping signal output from the first converter and the offset signal output from the second converter.

Sweeping signal generating device

A turbocharger system of an embodiment includes: a wastegate valve; an electrically-operated actuator configured to adjust a valve lift of the wastegate valve; a temperature acquisition unit configured to acquire a target temperature which is a temperature of the turbocharger body or a temperature correlating with the temperature of the turbocharger body; and an actuator controller configured to control the electrically-operated actuator on the basis of the target temperature. The temperature acquisition unit acquires the target temperature, and the actuator controller controls the electrically-operated actuator on the basis of the target temperature.

Turbocharger system and control method for the same

A rotary machine support device is used for supporting a rotary machine including a hearing housing with a flange and a rotary shaft. The rotary machine support device includes a support portion which supports the rotary machine. The support portion includes: a mounting flange capable of contacting the flange; and arms, each arm including a holding portion which holds the mounting flange and the flange together while pressing the flanges contacting each other inward from outside in the radial direction thereof. The holding portion includes a pair of claw pieces. In addition, at least one of the mounting flange and a groove portion formed between the pair of claw pieces is formed in a tapered shape, and the tapered shape is formed so that the width thereof in the opposing direction of the flange and the mounting flange gradually decreases outward from inside in the radial direction.

Rotary machine support device

A timing generating circuit outputs, to a laser controller, a change pulse signal for changing an oscillation wavelength of the laser beam, and outputs, to a data acquisition circuit, a timing pulse signal for outputting data to a processor. An edge detection circuit detects an edge of a measurement signal outputted from a detector circuit. A delay measuring circuit receives a change pulse signal outputted from the timing generating circuit, receives an edge detection signal outputted from the edge detection circuit, and measures a delay of a time for which the laser beam with an oscillation wavelength changed based on the change pulse signal reaches the detector circuit after the change pulse signal is outputted from the timing generating circuit. The timing generating circuit delays a time for outputting data from the data acquisition circuit to the processor based on the delay of time outputted from the delay measuring circuit.

Laser gas analysis apparatus

A laser gas analyzer which can include a light source unit including a diode laser that irradiates a gas to be measured with laser light while scanning a wavelength thereof; a detection unit including a light receiving element, a gain-variable amplifier into which an output signal of the light receiving element is input, an A/D converter into which the output signal of the amplifier is input, and an arithmetic processing unit that performs a concentration analysis of the gas to be measured; a peak-to-peak detector that detects a peak-to-peak value of the output data of the A/D converter in each scan of the wavelength of the laser light irradiated from the diode laser; and a gain adjustment unit that, when the output signal of the peak-to-peak detector deviates from a preset threshold, adjusts the gain of the amplifier in a direction of bringing the output signal back to within the threshold.

Laser gas analyzer

In a laser radar apparatus, a laser beam generator that generates a laser beam and an optical detector that detects reflected light that has been reflected by an object in a field to be observed. A deflection performing means, provided with one or more deflection means each rotatable on a given central axis thereof, for enabling the deflection means to deflect the laser beam to the field and to deflect the reflected light toward the optical detector. A drive means driven to rotate the deflection means. A direction changing means changes a direction of the laser beam from the deflection means is changed in a direction of the central axis. A control means controls an operation of the direction changing means.

Laser radar apparatus for three-dimensional detection of objects

A laser radar including laser beam generating means, photo detecting means, a mirror, light deflecting means, and rotation driving means. The laser beam generating means emits a laser beam having an axis thereof. The photo detecting means detects a reflected laser beam that is reflected back by an object. The mirror includes a through-hole that passes the laser beam and a reflecting surface that reflects a reflected laser beam reflected back by the object toward the photo detecting means. The light deflecting means deflects the laser beam toward a measuring region and reflects the reflected laser beam from the object toward the mirror. The rotation driving means rotates the light deflecting means so as to direct the laser beam toward the measuring region.

Laser radar apparatus that measures direction and distance of an object

There is provided a laser radar apparatus including laser beam generating means, photo detecting means, a mirror assembly, light deflecting means, and rotation driving means. The laser beam generating means emits a laser beam having an axis thereof. The photo detecting means detects a reflected laser beam that is reflected back by an object. The mirror assembly includes a through-hole that transmits the laser beam and a reflecting surface that reflects a reflected laser beam reflected back by the object toward the photo detecting means. The light deflecting means has a flat mirror surface and a concave-shaped mirror surface, and reflects the laser beam toward a measurement range and deflects the reflected laser beam from the object toward the mirror assembly. The rotation driving means rotates the light deflecting means so as to direct the laser beam toward the measurement range.

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Tokyo, Japan

Masanori Okada