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Patent
Shimadzu Corporation | Date: 2017-05-10

A preprocessing apparatus uses preprocessing kits prepared for samples, respectively, sets the preprocessing kits in plural processing ports provided so as to correspond to preprocessing items, and executes a predetermined preprocessing item. A controller which controls operations of a carrying mechanism holding and carrying the preprocessing kits, and processing parts executing the preprocessing items in the respective processing ports, includes a processing-state control part, a random access part, and a preprocessing part. The random access part is configured to check availability of a preprocessing port corresponding to a preprocessing item to be executed on a sample contained in a preprocessing kit, and set the preprocessing kit in a processing port if the processing port is available as a processing port corresponding to the preprocessing item. The preprocessing part executes a corresponding preprocessing item on a sample in a preprocessing kit when the preprocessing kit is set in the processing port.


Patent
Shimadzu Corporation, Japan National Institute of Advanced Industrial Science and Technology | Date: 2017-05-10

In unipolar charging, a discharge current value at which charging efficiency is best and a discharge current dependency of multivalent charging differ depending on the particle size of the particles that are the object of charging. Therefore, for each particle size, a discharge voltage at which univalent charging efficiency is best and a discharge voltage at which the signal-to-noise ratio of a signal when particles of a different size are regarded as noise is best are obtained through experiment and stored in a storage unit (21). When scanning a classification voltage that is applied to a classification unit (32) of a DMA (3) to measure particle size distribution, a system controlling unit (2) acquires an optimal voltage corresponding to a particle size from the storage unit (21), and in conjunction with scanning of the classification voltage, controls a discharge power source (11) via a discharge voltage controlling unit (10) so that the discharge voltage is scanned in accordance with changes in particle size. It is thereby possible, for example, to reduce the amount of multivalent charged particles of different particle sizes that are mixed in with particles with a predetermined particle size that are extracted by classification, and to accurately determine the particle size distribution.


Patent
Shimadzu Corporation | Date: 2017-05-03

In a controlling apparatus 110 to control an operation of an analyzing apparatus 1 and make the analyzing apparatus 1 execute a predetermined analysis, the controlling apparatus 110 includes: a communicating module 60 that maintains reception of electricity when the analyzing apparatus 1 is in a power-on state, and is capable of receiving a control signal from an external apparatus 2 at all times; and unit power controlling means 23 for acquiring the control signal through the communicating module 60, stopping electricity supply to a unit 31, 321, 322, 323 and/or 324 of the analyzing apparatus 1 at a first timing based on the control signal, and restarting the electricity supply to the unit 31, 321, 322, 323 and/or 324 at a second timing based on the control signal, so as to effectively suppress the electricity consumption when the analysis is not executed and facilitate the restart of the analysis.


Patent
Shimadzu Corporation | Date: 2017-05-10

Nonuse-indication information can be set for each peak on a mass spectrum collected in a compound database (33), as attribute information, the nonuse-indication information allowing the selection of whether to be used in a database search. For example, nonuse-indication information is set in advance to a noise peak mixed in actual measurement, an impurity-originated peak, and the like. In identifying a compound, when nonuse-indication information is read from the database (33) for a database search together with a mass spectrum, an unnecessary information deleting section (341) transmits a mass spectrum from which a peak set with the nonuse-indication information is deleted, to a compound candidate extracting section (342) and a scoring section (343). Therefore, a peak set with the nonuse-indication information is ignored in, for example, calculating the score of a compound candidate, which allows a score with a high accuracy to be calculated, resulting in an improved identification accuracy.


Patent
Shimadzu Corporation | Date: 2017-05-10

The mass spectrometer (1) provides an ionization chamber (11) therein with: a probe (15) having a sample to be measured flow path (155) for spraying a sample to be measured; and a standard sample flow path (255) for spraying a standard sample used for the calibration of the mass-to-charge ratio of the mass spectrum into the ionization chamber. The standard sample is intermittently introduced into the ionization chamber via a pulse valve (216). Thus, mixing of the sample to be measured and the standard sample can be prevented, while the timing according to which the standard sample is introduced can be appropriately controlled. It also becomes possible to acquire an accurate mass spectrum for each sample to be measured even in the case where a number of types of samples to be measured are introduced into the ionization chamber one after another over a short period of time.


Patent
Shimadzu Corporation | Date: 2017-02-03

A magnetic bearing device comprises a first carrier generation section generating a first carrier signal; a second carrier generation section generating a second carrier signal whose phase differs by (/2+) radian from the phase of the first carrier signal; a first demodulation section performing demodulation by sampling the first modulated signal at sampling timing shifted by a phase from timing at which the first carrier signal becomes a peak; a second demodulation section performing demodulation by sampling the second modulated signal at sampling timing shifted by a phase () from timing at which the second carrier signal becomes a peak; and a controller controlling current in each of the first radial electromagnet and the second radial electromagnet, based on a result of the demodulation by each of the first demodulation section and the second demodulation section.


A centrifugal separation device including a supporter attached to a centrifuge and a divisional part removable from the supporter is provided. The divisional part has two flow channels and an extracting part. The flow channels extend substantially in parallel to the direction in which centrifugal force acts, and are connected to each other on the leading end side in the direction in which centrifugal force acts. One of the flow channels is a sample flow channel having a sample inlet on the base end side in the direction in which centrifugal force acts, and the other flow channel is an air-discharging flow channel having an outlet on the base end side. The extracting part includes part of the sample flow channel, and has a connecting part for the part to be cut off from the remainder of the sample flow channel. The extracting part allows centrifuged sample components existing in the cut-off part to be extracted.


A preprocessing kit includes a separation device, a collecting container, and a skirt part. The separation device is a cylindrical container which has an upwardly-open internal space, and includes a separation layer which allows a sample to penetrate and separates a specific component in the sample from the sample, in the internal space, and an extraction outlet for extracting the sample penetrating the separation layer, in a lower end. The collecting container is attachable to and detachable from the separation device, has an internal space in which an extracted sample provided from the extraction outlet of the separation device is collected, and is fitted into a recess part forming a filtration port for performing filtration processing on a sample with a lower end of the separation device of the separation device being contained in the internal space. The skirt part is integrated with the separation device, and is provided to surround an outer circumferential surface of the separation device with a clearance being left from the outer circumferential surface so that a space having a closed upper side and an open lower side is formed between the outer circumferential surface of the separation device and the skirt part. The skirt part is provided in such a way that a lower end of the skirt part comes into intimate contact with a peripheral surface of an opening of the recess part when the collecting container containing the lower end of the separation device is fitted into the recess part.


Patent
Shimadzu Corporation | Date: 2017-07-12

The present invention provides a preprocessing device of a more compact structure, and an analysis system provided with the same. A preprocessing device (1) includes a container holding section (12), a filtration port (30), and a transport arm (24). The container holding section (12) holds a separation container (50) and a collection container (54). The filtration port (30) separates a sample by applying pressure to a sample in the separation container (50). The transport arm (24) transports the separation container (50) and the collection container (54) held by the container holding section (12) from a predetermined transport position. The container holding section (12) holds the separation container (50) and the collection container (54) in an annular or arch-shaped holding region formed on an outer circumference of the filtration port (30), and sequentially moves the separation container (50) and the collection container (54) to the transport position by shifting the separation container (50) and the collection container (54) in the circumferential direction of the holding region.


Patent
Shimadzu Corporation | Date: 2017-07-05

The purpose of the present invention is to suppress delays in changes in a turning angle with respect to changes in a steering angle, regardless of the type of pump being adopted in an electric hydraulic pressure type steer-by-wire steering system. The steer-by-wire steering system is provided with a hydraulic actuator (6) for changing the turning angle of an object to be steered; a pump (5) for supplying hydraulic pressure to the actuator; an electric motor (4) for rotating the pump in forward and reverse directions; and a control device (3) for controlling the turning angle to be corresponded to a steering angle by operating the motor. The control device is provided with: a motor driving unit for controlling the electric motor to decrease deviations between the steering angle and the turning angle; and a control correction unit for performing changes so as to reduce the time lag between changes in the steering angle and changes in the turning angle, said time lag being derived according to the deviations.

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