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15 条记录 (耗时 0.016 秒)

    Optical analyzer
    1.
    发明授权
    Optical analyzer 有权

    公开(公告)号：US09797826B2

    公开(公告)日：2017-10-24

    申请号：US14922250

    申请日：2015-10-26

    申请人： SHIMADZU CORPORATION

    发明人： Yusuke Nagai

    IPC分类号： G01N21/00 ,  G01N22/00 ,  G01N21/25

    CPC分类号： G01N21/255 ,  G01N2201/0624

    摘要： An optical filter 4 is placed in an optical path between a light source unit 1 using a deep ultraviolet LED as a light source and a sample cell 2. The optical filter 4 is a shortpass filter that allows passage of light of a main peak located within a deep ultraviolet region while blocking light of an unwanted peak located within a visible region. The temporal change in the amount of light of the unwanted peak is considerably greater than that of the main peak. The optical filter 4 blocks the former light whose amount considerably changes with time. As a result, the influence of the noise and drift originating from the LED on the detection signal obtained in a detector 3 is dramatically reduced, so that the analytical accuracy is improved.

    ANALYTICAL MEASUREMENT DEVICE SYSTEM
    2.
    发明申请
    ANALYTICAL MEASUREMENT DEVICE SYSTEM 审中-公开

    公开(公告)号：US20170248562A1

    公开(公告)日：2017-08-31

    申请号：US15421548

    申请日：2017-02-01

    申请人： SHIMADZU CORPORATION

    发明人： Yusuke Nagai ,  Masato Watanabe

    IPC分类号： G01N30/88 ,  G01N30/86 ,  G01N30/74

    CPC分类号： G01N30/88 ,  G01N30/74 ,  G01N30/8665 ,  G01N35/00623 ,  G01N2030/027 ,  G01N2030/8804 ,  G01N2030/889

    摘要： Provided is an analytical measurement device system 10 having a plurality of units (liquid-sending pump 12; detector 15) including: a sensor (flow sensor 121; light amount detector 151) provided in at least one unit among the plurality of units, for detecting the condition of a specific portion of the unit; a determination section (flow rate determiner 122; light amount determiner 152) provided in the unit, for receiving a signal from the sensor and for determining an overall condition of the unit based on a predetermined determination criterion; a storage section (flow-rate determination information storage section 123; light-amount determination information section 153) provided in the unit, for storing the determination criterion and a result of the determination by the determination section; and a display section (flow-rate determination result display section 124; light-amount determination result display section 154) provided in the unit, for displaying the determination result.

    Optical measurement device
    3.
    发明授权
    Optical measurement device 有权

    公开(公告)号：US10126229B2

    公开(公告)日：2018-11-13

    申请号：US15567695

    申请日：2015-04-24

    申请人： Shimadzu Corporation

    发明人： Yusuke Nagai

    IPC分类号： G01N21/05 ,  G01N21/03 ,  G01N21/64 ,  G01N21/65

    摘要： Measurement light is cast from a light-casting unit into a flow cell. The light is repeatedly reflected at an outer surface of the flow cell. A detecting unit including a connecting element and a photodetector element is provided in contact with the outer surface of the flow cell. Since the connecting element is made of a material whose refractive index is higher than that of the wall of the flow cell, the light is extracted from the flow cell at the contact position of the connecting element, to be detected by the photodetector element. A shift of the attachment position of the detecting unit along the axis of the flow cell changes the optical path length of the measurement light. A high-sensitivity absorption measurement can be performed by controlling the optical path length by merely changing the attachment position of the detecting unit, without replacing the flow cell.

    Optical analyzer and method for producing the same
    5.
    发明授权
    Optical analyzer and method for producing the same 有权

    公开(公告)号：US10475953B2

    公开(公告)日：2019-11-12

    申请号：US15567679

    申请日：2015-04-24

    申请人： SHIMADZU CORPORATION

    发明人： Yusuke Nagai

    IPC分类号： G01N21/00 ,  H01L33/00 ,  G01N21/05 ,  G01N21/59 ,  G01N35/08 ,  H01L31/18 ,  G01N21/25 ,  G01N21/64 ,  H01L25/16

    摘要： A passage (3) for a sample solution is formed in a sapphire base body (2) used as a substrate for semiconductor devices. An LED (4) and a photodiode (5) are formed on the base body (2) by a semiconductor manufacturing process so that they face each other across the passage (3). The LED (4) emits light into the base body (2). This light is transmitted through the sample solution in the passage (3), undergoing absorption according to the concentration and other properties of the solution. The transmitted light passes through the base body (2) and reaches the photodiode (5), producing a detection signal corresponding to the incident light amount. Since the light source and photodetector are integrated with the base body (2) serving as a flow cell, the present device is small and lightweight. Furthermore, no cumbersome task of aligning optical axes in the device-assembling process is needed.

    Optical analyzer
    6.
    发明授权
    Optical analyzer 有权

    公开(公告)号：US09877368B2

    公开(公告)日：2018-01-23

    申请号：US15015810

    申请日：2016-02-04

    申请人： SHIMADZU CORPORATION

    发明人： Yusuke Nagai ,  Keisuke Ogawa ,  Masato Watanabe ,  Kumiko Jingu ,  Masanori Fujiwara ,  Tomoyuki Yamazaki

    IPC分类号： H05B33/08 ,  G01N21/33

    CPC分类号： H05B33/0851 ,  G01N21/33 ,  G01N2201/0621 ,  G01N2201/0638 ,  G01N2201/0692 ,  G01N2201/0695

    摘要： Provided is an optical analyzer for performing a feedback control on the amount of light emitted from an LED as a light source, in which the configuration of an optical system is made simple and the degree of freedom in optical system arrangement is secured. An optical member 2 for focusing most of light while discharging part of the light as unfocused light is provided on an optical path from a light casting unit 1 to a sample cell 3. The optical member 2 can be achieved with a simple configuration, for example, two ball lenses spaced apart by a predetermined distance from each other. The light focused by the optical member 2 is cast as measurement light into the sample cell 3. Meanwhile, a second photodetector 5 is arranged at a position where the unfocused light reaches. The second photodetector 5 generates a detection signal in accordance with the amount of light that has entered the second photodetector 5 as monitored light, and a drive current to be supplied to an LED is controlled through a drive current controlling unit 6 and a current source 7 such that the amount of light is maintained at a fixed level.

    Degassing device
    8.
    发明授权
    Degassing device 有权

    公开(公告)号：US10041914B1

    公开(公告)日：2018-08-07

    申请号：US15612472

    申请日：2017-06-02

    申请人： SHIMADZU CORPORATION

    发明人： Kumiko Jingu ,  Keisuke Ogawa ,  Masato Watanabe ,  Yusuke Nagai ,  Masanori Fujiwara ,  Tomoyuki Yamazaki

    IPC分类号： G01N21/00 ,  G01N30/74 ,  G01N21/59 ,  G01N30/02

    摘要： A degassing device 2 includes: a built-in absorbance measurement section 28 using an LED light source and measuring the intensity of light transmitted through a mobile phase passing through a flow cell; and a solenoid valve 26 switchable between two states with and without the mobile phase passed through a degassing tube 21. The passage-switching operation by the solenoid valve is performed so as to obtain detection signals of the transmitted light in the absorbance measurement section when the mobile phase drawn from a mobile phase container by a liquid-feeding pump 40 is passed through the degassing tube for degassing as well as when the mobile phase is not passed through the degassing tube for degassing. A signal processor 29 calculates the difference in absorbance based on those detection signals, estimates the degree of degassing based on that difference, and displays the result on a display unit 32.

    OPTICAL MEASUREMENT DEVICE
    9.
    发明申请
    OPTICAL MEASUREMENT DEVICE 审中-公开

    公开(公告)号：US20180088027A1

    公开(公告)日：2018-03-29

    申请号：US15567695

    申请日：2015-04-24

    申请人： Shimadzu Corporation

    发明人： Yusuke Nagai

    IPC分类号： G01N21/05

    CPC分类号： G01N21/05 ,  G01N21/031 ,  G01N2021/052 ,  G01N2021/6482 ,  G01N2021/651

    摘要： Measurement light is cast from a light-casting unit into a flow cell. The light is repeatedly reflected at an outer surface of the flow cell. A detecting unit including a connecting element and a photodetector element is provided in contact with the outer surface of the flow cell. Since the connecting element is made of a material whose refractive index is higher than that of the wall of the flow cell, the light is extracted from the flow cell at the contact position of the connecting element, to be detected by the photodetector element. A shift of the attachment position of the detecting unit along the axis of the flow cell changes the optical path length of the measurement light. A high-sensitivity absorption measurement can be performed by controlling the optical path length by merely changing the attachment position of the detecting unit, without replacing the flow cell.

    OPTICAL ANALYZER
    10.
    发明申请
    OPTICAL ANALYZER 有权
    光学分析仪

    公开(公告)号：US20160187250A1

    公开(公告)日：2016-06-30

    申请号：US14922250

    申请日：2015-10-26

    申请人： SHIMADZU CORPORATION

    发明人： Yusuke Nagai

    IPC分类号： G01N21/25 ,  G01N21/27

    CPC分类号： G01N21/255 ,  G01N2201/0624

    摘要： An optical filter 4 is placed in an optical path between a light source unit 1 using a deep ultraviolet LED as a light source and a sample cell 2. The optical filter 4 is a shortpass filter that allows passage of light of a main peak located within a deep ultraviolet region while blocking light of an unwanted peak located within a visible region. The temporal change in the amount of light of the unwanted peak is considerably greater than that of the main peak. The optical filter 4 blocks the former light whose amount considerably changes with time. As a result, the influence of the noise and drift originating from the LED on the detection signal obtained in a detector 3 is dramatically reduced, so that the analytical accuracy is improved.

    摘要翻译： 将滤光器4放置在使用深紫外线LED作为光源的光源单元1和样品池2之间的光路中。滤光器4是短路滤光器，其允许位于内部的主峰的光通过 深紫外线区域，同时阻挡位于可见区域内的不希望的峰的光。 不需要的峰的光量的时间变化明显大于主峰的光的时间变化。 光学滤波器4阻挡其量随着时间而显着变化的前光。 结果，来自LED的噪声和漂移的影响在检测器3中获得的检测信号的影响大大降低，从而提高了分析精度。