Abstract: Provided are a conveying device and a conveying method capable of detecting a speed of a conveyed object more accurately than that in the related art. The conveying device includes a coil 107 that includes a core 105 and a winding 106, a current detection unit 109 that detects a current flowing through the winding 106 of the coil 107, a drive unit 108 that supplies a voltage to the coil 107, and a control unit 110. The control unit 110 estimates a conveying speed of a holder 102 provided with a magnetic body 103 based on the current flowing through one winding 106 due to an influence of electromagnetic induction.

Abstract: A transport device and a transport method efficiently increase a thrust to suppress power consumption. The transport device has a first magnetic body on a side of a to-be-transported object, a magnetic circuit with a core consisting of a second magnetic body, and a winding wound around an outside of the core, and a drive circuit supplying a current to the winding of the magnetic circuit. The magnetic circuit has first and second magnetic circuits, and in a case where the first magnetic body is located on a side of the second magnetic circuit relative to a first predetermined position between the first magnetic circuit and the second magnetic circuit, the drive circuit supplies a current to a winding of the first magnetic circuit in such a manner to cause an electromagnetic repulsive force to be generated between the first magnetic body and the first magnetic circuit.

Abstract: Provided is a conveyance device that conveys a conveyance object having a magnetic body, the conveyance device including: a plurality of coils configured to generate magnetic flux acting on the magnetic body; a coil driving unit configured to apply a voltage to each of the plurality of coils; and a calculation control unit including a current control unit and a position estimation unit. The current control unit determines the voltage. The position estimation unit estimates a position of the conveyance object based on a change in a current generated by applying a voltage pulse to the coils and switches, according to a position estimation value that indicates the position of the conveyance object estimated by the position estimation unit, between a speed control mode in which a speed of the conveyance object is controlled and a current control mode in which a current through the coils is controlled.

Abstract: To prevent liquid sloshing caused by switching a coil to be energized in a transport device. A transport device that transports an object to be transported provided with a magnetic body, the transport device includes: a plurality of coils configured to generate a thrust for transporting the object to be transported; a coil drive unit configured to apply a pulsed voltage to each of the plurality of coils; and a calculation unit. When switching a coil to be energized, the calculation unit determines a width of the pulsed voltage such that a speed or an acceleration of the object to be transported is stabilized based on a position of the object to be transported and a time at which the object to be transported passes through the position or a current flowing through an energized coil in a predetermined period before switching the coil to be energized, and outputs the determined width to the coil drive unit.

Abstract: The weight of a body-to-be-conveyed constituting a conveying device is reduced, and the friction force between the sliding surface of the body-to-be-conveyed and the conveyance path is reduced. A body-to-be-conveyed that is a component of a conveying device that uses electromagnetic force as thrust and can move in a horizontal direction includes a mover in which a bottom surface is arranged so that a predetermined gap is formed in a vertical direction with respect to the sliding surface thereof, in which the mover includes a permanent magnet and a cover, a gap facing surface of the permanent magnet facing the gap includes one magnetic pole, the cover is installed on a side of the permanent magnet opposite from the gap facing surface in the vertical direction, the horizontal outermost diameter of the cover is larger than the horizontal outermost diameter of the permanent magnet, and the cover is formed of a flat plate.

Abstract: The weight of a body-to-be-conveyed constituting a conveying device is reduced, and the friction force between the sliding surface of the body-to-be-conveyed and the conveyance path is reduced. A body-to-be-conveyed that is a component of a conveying device that uses electromagnetic force as thrust and can move in a horizontal direction includes a mover in which a bottom surface is arranged so that a predetermined gap is formed in a vertical direction with respect to the sliding surface thereof, in which the mover includes a permanent magnet and a cover, a gap facing surface of the permanent magnet facing the gap includes one magnetic pole, the cover is installed on a side of the permanent magnet opposite from the gap facing surface in the vertical direction, the horizontal outermost diameter of the cover is larger than the horizontal outermost diameter of the permanent magnet, and the cover is formed of a flat plate.

Abstract: There are provided a sample conveying device and a sample conveyance method capable of determining a cause of an abnormality in a conveyance speed more quickly than in the related art. In a conveying device 501, a general conveyance speed of a conveying container 102 is obtained from a position of the conveying container 102 detected by a position detection unit 110 to determine whether the general conveyance speed is abnormal, and when it is determined that the general conveyance speed is abnormal, an inspection conveying container 105 is conveyed, and the cause of the abnormality in the general conveyance speed is determined based on the conveyance speed of the inspection conveying container 105.

Abstract: The present invention provides a transport device and a specimen analysis system including the transport device that reduce the pulsation of thrust for moving an object to be transported, reduce vibration of the object to be transported during transport, and realize stable transport. The transport device of the present invention includes a first electromagnet unit including a first tooth made of a magnetic body, a first core connected to the first tooth and made of a magnetic body, and a first winding formed around the first core; a second electromagnet unit including a second tooth installed adjacent to the first electromagnet unit and made of a magnetic body, a second core connected to the second tooth and made of a magnetic body, a second winding formed around the second core; and a magnetic coupling unit made of a magnetic body between the first tooth of the first electromagnet unit and the second tooth of the second electromagnet unit.

Abstract: There are provided a sample conveyance system and a sample conveyance method capable of conveying a sample in a more stable manner than in the related art corresponding to a conveyance method using an electromagnetic actuator. A driving unit 208 applies a first voltage to a first coil 207a located on a front side in a traveling direction of a holder 202, which is selected to attract or repel the holder 202, to excite the first coil 207a and applies a second voltage having a polarity opposite to a polarity of the first voltage to at least one or more of second coils 207b among coils 207 adjacent to the first coil 207a except for the coils 207 in the front side in the traveling direction to excite the second coil 207b, and a control unit 210A estimates a position of the holder 202 based on a value of a current flowing through a winding 206 of the first coil 207a.

Abstract: The present invention comprises: an object to be conveyed that has at least one permanent magnet 10; a magnetic pole 25 that has a core 22 comprising a second magnetic body and a winding 21 wound around the outer periphery of the core 22; a drive circuit 50 for supplying a current to the winding 21 of the magnetic pole 25; a current detection unit 30 for detecting the value of the current flowing through the winding 21; and a computation unit 40 for estimating the position of the permanent magnet 10 on the basis of the current value detected by the current detection unit 30 and controlling the value of the current supplied from the drive circuit 50 to the winding 21 on the basis of information about the estimated position of the permanent magnet 10.

Abstract: The invention provides a conveying device having a conveying performance higher than that of the related art, a sample analysis system and sample pretreatment device with the conveying device and a method for conveying a conveyance object. A conveying device 1 includes a permanent magnet 10 which is provided on a sample rack 111 side, magnetic poles 25 each of which includes a core 22 made of a second magnetic body and a winding 21 wound around an outer periphery of the core 22, drive circuits 50 each of which supplies a current to the winding 21 of the magnetic pole 25, and current command calculation units 55 each of which controls a value of the current to be supplied to the winding 21 from the drive circuit 50. The current command calculation unit 55 makes the currents to be supplied to the windings 21 vary.

Abstract: Provided is a conveyance device capable of reducing the weight of a conveyance device while preventing magnetic saturation. A conveyance device according to the present invention is characterized by comprising a conveyance path (65) in which a conveyed object is moved, an electromagnet provided on the surface of the conveyance path (65) opposite to the surface on which the conveyed object moves, and a drive circuit for supplying a current to the electromagnet, the electromagnet including teeth (22a, 22b) formed from a magnetic body, and windings (21a, 21b) wound onto the surface of the teeth (22a, 22b), a yoke (26) is provided that supports the teeth (22a, 22b), and the relationship between the minimum cross-sectional area Sy of the yoke (26) and the minimum cross-sectional area St of the part of the teeth (22a, 22b) where the windings (21a, 21b) are provided is Sy<St.

Abstract: Provided is a transport device in which reliability is increased by suppressing deterioration of the transport surface and transport efficiency is increased by suppressing electrical current loss. A transport device 1 comprising a transported body having either a permanent magnet 10 or a magnetic body, and an electromagnet unit in which coils 21 are wound around teeth 25 comprising magnetic bodies, and having recesses on surfaces of the teeth 25 facing the transported body. Specifically, the surfaces of the teeth 25 facing the transported body have at least two surfaces (first facing surface 22, second facing surface 23, etc.) which have different distances to the transported body.

Abstract: Provided is a sample transport device, a sample analysis system, and a sample pretreatment device which have high positional accuracy when stopping a sample and can adjust a minute position when stopping the sample. A sample transport device (1a) according to the present invention includes: a sample provided with a permanent magnet (10); a transport path through which the sample is to be transported via the permanent magnet (10); a plurality of coils provided on a surface of the transport path opposite to a surface on which the sample is to be transported; and a drive circuit that causes a current to flow through the coils.

Abstract: Provided are a transport device and an analysis system in which a stability of transport at a time of restart is further enhanced while achieving cost reduction by a position-sensorless configuration. A transport device includes: a plurality of coils 25a, 25b configured to generate a thrust to transport a transport container 20; a drive circuit 50 configured to apply a voltage to each of the plurality of coils 25a, 25b; and a calculation unit 40 configured to estimate a position of the transport container 20 based on current information when voltage pulses 80, 81 are applied to the coils 25a, 25b. When a power supply of the device is activated, the calculation unit 40 applies a voltage pulse 80 in a positive direction and a voltage pulse 81 in a negative direction to the target coils 25a, 25b so as to detect the position of the transport container 20 from the current information of current flowing through the coils 25a, 25b.

Abstract: A sample transport device includes: a sample container configured to accommodate a sample and provided with a magnetic body; a transport surface on which the sample container is to be transported; a plurality of coils disposed on a surface of the transport surface that is opposite to a surface facing the magnetic body; a coil drive unit configured to apply a voltage to the coils; and a position estimation unit configured to estimate a position of the sample container based on a current change generated when the coil drive unit applies the voltage to the coils. The position estimation unit estimates the position of the transport container by the coil drive unit applying voltage pulses having a phase difference to adjacent coils among the plurality of coils.

Abstract: A transport device includes: a calculation unit 40 configured to estimate a position of a transport container 20 based on a current value detected by a current detection unit 30; and a storage unit 45 configured to store a current change amount for each of a plurality of magnetic poles 25 when a pulse voltage of a fixed value is applied to respective coils 21 of the plurality of magnetic poles 25 in a state where a permanent magnetic 10 is not on a transport surface. The calculation unit 40 estimates the position of the transport container 20 based on a deviation between a current change amount of a coil 21 acquired at a time of detecting the position of the transport container 20 and the current change amount of the corresponding coil 21 in the state where the permanent magnetic 10 is not present, which is stored in the storage unit 45.

Abstract: The present invention provides a transport device and a specimen analysis system including the transport device that reduce the pulsation of thrust for moving an object to be transported, reduce vibration of the object to be transported during transport, and realize stable transport. The transport device of the present invention includes a first electromagnet unit including a first tooth made of a magnetic body, a first core connected to the first tooth and made of a magnetic body, and a first winding formed around the first core; a second electromagnet unit including a second tooth installed adjacent to the first electromagnet unit and made of a magnetic body, a second core connected to the second tooth and made of a magnetic body, a second winding formed around the second core; and a magnetic coupling unit made of a magnetic body between the first tooth of the first electromagnet unit and the second tooth of the second electromagnet unit.

Abstract: Provided is a transport device in which reliability is increased by suppressing deterioration of the transport surface and transport efficiency is increased by suppressing electrical current loss. A transport device 1 comprising a transported body having either a permanent magnet 10 or a magnetic body, and an electromagnet unit in which coils 21 are wound around teeth 25 comprising magnetic bodies, and having recesses on surfaces of the teeth 25 facing the transported body. Specifically, the surfaces of the teeth 25 facing the transported body have at least two surfaces (first facing surface 22, second facing surface 23, etc.) which have different distances to the transported body.

Abstract: A conveying device conveys a container including a magnetic body to a target position along a conveyance path and includes a conveyance surface configured by arranging a plurality of magnetic poles including a core and a coil, and including a conveyance path, a drive unit supplying a current to the coil, and a position detection unit estimating the position of the container. The position detection unit excites a first magnetic pole to detect the position of the container and applies a voltage to at least one second magnetic pole that is peripheral in a predetermined range from the first magnetic pole and is different from the first magnetic pole in a direction in which the polarity becomes opposite to the exciting current of the first magnetic pole, and a process of estimating the position of the container based on the current value of the first magnetic pole.