公开(公告)号：US20160189947A1

公开(公告)日：2016-06-30

申请号：US14984057

申请日：2015-12-30

Applicant: Nuctech Company Limited

Inventor： Haichao ZHOU ,  Yangtian ZHANG ,  Yuntai BAO ,  Wangyang Wu ,  Yi XIAO ,  Changzhuo CHEN ,  Qifang WANG ,  Wen He

IPC: H01J49/06 ,  G01N27/62

CPC classification number: G01N27/622

Abstract: The present disclosure provides an electrode ring for an ion mobility spectrometer, an ion transfer tube and an ion mobility spectrometer. Wherein, the electrode ring has an outer edge thickness larger than its inner edge thickness in an axial direction. Through the present disclosure, in the structure of the electrode ring, the uniformity of the electric filed inside the transfer tube can be significantly improved. In the present disclosure, the smooth ion transfer zone inside the transfer tube can be enlarged. The ion transfer tube formed of electrode rings each having an inner edge thickness the same as the outer edge thickness in the axial direction apparently has poorer uniformity of electrode field than the ion transfer tube formed of electrode rings each having the same outer edge thickness but an inner edger thickness smaller than the outer edge thickness in the axial direction.

Abstract translation: 本公开提供了一种用于离子迁移谱仪的电极环，离子传递管和离子迁移谱仪。 其中，电极环的轴向具有比其内边缘厚度大的外边缘厚度。 通过本公开，在电极环的结构中，可以显着提高输送管内的电场的均匀性。 在本公开中，可以扩大传送管内的平滑离子转移区。 由电极环形成的离子传输管的外周边缘厚度与轴向的外缘厚度相同，显示出比由具有相同外缘厚度的电极环形成的离子传输管的电极场均匀性差， 内边缘厚度小于轴向外边缘厚度。

公开(公告)号：US10317365B2

公开(公告)日：2019-06-11

申请号：US15578536

申请日：2016-08-09

Applicant: Nuctech Company Limited

Inventor： Wen He ,  Hua Peng ,  Yangtian Zhang ,  Yuntai Bao ,  Changzhuo Chen ,  Haichao Zhou

IPC: G01N27/68 ,  G01N27/62 ,  H01J49/06 ,  H01J49/18

Abstract: The present disclosure discloses a corona discharge assembly, an ion mobility spectrometer and a corona discharge method. The corona discharge assembly includes at least one corona discharge unit, wherein, the corona discharge unit includes a pair of corona metal wires arranged in parallel, and pulses having the same amplitude but opposite polarities are applied to the corona metal wires arranged in parallel, respectively. The present disclosure can generate more reactive ions than corona needles or tips, facilitate improving sensitivity of the ion mobility spectrometer, and effectively prolong service life of a corona source to 3-10 years.

公开(公告)号：US10295498B2

公开(公告)日：2019-05-21

申请号：US15116753

申请日：2015-06-18

Applicant: Nuctech Company Limited

Inventor： Yuntai Bao ,  Yangtian Zhang ,  Jianhu Ma ,  Haichao Zhou ,  Wangyang Wu ,  Wen He ,  Zhongxia Zhang ,  Bin Xue

IPC: B01D53/02 ,  G01N27/62 ,  B01D53/26 ,  B01D53/04

Abstract: Embodiments of the present invention provide an air dryer for an ion mobility spectrometer, comprising a heating element used to heat a thermal conduction device, thereby heating the desiccant. Embodiments of the present invention further provide a regeneration method, by which the operation mode of the ion mobility spectrometer may be switched, so that during a non-working time of the ion mobility spectrometer, the desiccant is heated and thereby regenerated. With the present invention, the desiccant is avoided from being regularly replaced, thereby improving the performance and increasing the service life of the dryer. Regeneration of the desiccant is performed by making full use of the non-working time of the ion mobility spectrometer without affecting normal operation of instrument.

公开(公告)号：US10058817B2

公开(公告)日：2018-08-28

申请号：US15067349

申请日：2016-03-11

Applicant: Nuctech Company Limited

Inventor： Haichao Zhou ,  Yangtian Zhang ,  Yuntai Bao ,  Wangyang Wu ,  Yi Xiao ,  Changzhuo Chen ,  Qifang Wang ,  Wen He ,  Haijun Yu

IPC: B01D53/02 ,  B01D53/26 ,  G01N27/62 ,  B01D53/06

CPC classification number: B01D53/261 ,  B01D53/06 ,  B01D2257/80 ,  G01N27/622

Abstract: The present disclosure discloses a continuous operable gas purification device in an ion mobility spectrometer including a housing provided with a cylinder cavity; a dry gas supply unit; a rotating barrier arranged in a radial direction of the cylinder cavity to divide it into a baking cavity and a working cavity; and a rotating mechanism. The housing is provided with a dry gas inlet and a dry gas outlet, which are communicated with the baking cavity, and a sample gas inlet and a sample gas outlet, which are communicated with the working cavity. The dry gas supply unit is connected with the dry gas inlet for a dry gas supply to the dry gas inlet. The baking cavity is provided with a heating unit correspondingly. The rotating mechanism is provided at a central position of the cylinder cavity and connected with the rotating barrier for rotating it at intervals.

公开(公告)号：US09147564B2

公开(公告)日：2015-09-29

申请号：US14365610

申请日：2012-12-13

Applicant: NUCTECH COMPANY LIMITED

Inventor： Wen He ,  Guanxing Li ,  Yuntai Bao

IPC: G21K5/04 ,  H01J49/02 ,  G01N27/62 ,  H01J49/26

CPC classification number: H01J49/02 ,  G01N27/622 ,  H01J49/26

Abstract: An electrode structure for an ion drift tube and an ion drift tube with the electrode structure are disclosed. The electrode structure comprises an annular electrode. The annular electrode has an inner edge bent towards one side such that a section of a central portion of the annular electrode has a swallowtail shape. With the ion drift detection instrument, ions in a drift state can travel along focusing electric lines of force, and since the high-voltage intervals between the electrodes are increased at a uniform acceleration, the generated electric field enables the ions to be in a uniformly accelerated drift state so that both the sensitivity and resolution of the mobility spectrum of the detection instrument can reach optimum.

Abstract translation: 公开了一种用于离子漂移管的电极结构和具有电极结构的离子漂移管。 电极结构包括环形电极。 环形电极具有朝向一侧弯曲的内边缘，使得环形电极的中心部分的截面具有燕尾形状。 使用离子漂移检测仪器，漂移状态的离子可以沿着聚焦电力线行进，并且由于电极之间的高压间隔以均匀的加速度增加，因此所产生的电场使得离子能够均匀地 加速漂移状态，使得检测仪器的灵敏度和分辨率都能达到最佳。

公开(公告)号：US20140353494A1

公开(公告)日：2014-12-04

申请号：US14365610

申请日：2012-12-13

Applicant: NUCTECH COMPANY LIMITED

Inventor： Wen He ,  Guanxing Li ,  Yuntai Bao

IPC: H01J49/02 ,  G01N27/62 ,  H01J49/26

CPC classification number: H01J49/02 ,  G01N27/622 ,  H01J49/26

Abstract: An electrode structure for an ion drift tube and an ion drift tube with the electrode structure are disclosed. The electrode structure comprises an annular electrode. The annular electrode has an inner edge bent towards one side such that a section of a central portion of the annular electrode has a swallowtail shape. With the ion drift detection instrument, ions in a drift state can travel along focusing electric lines of force, and since the high-voltage intervals between the electrodes are increased at a uniform acceleration, the generated electric field enables the ions to be in a uniformly accelerated drift state so that both the sensitivity and resolution of the mobility spectrum of the detection instrument can reach optimum.

Abstract translation: 公开了一种用于离子漂移管的电极结构和具有电极结构的离子漂移管。 电极结构包括环形电极。 环形电极具有朝向一侧弯曲的内边缘，使得环形电极的中心部分的截面具有燕尾形状。 使用离子漂移检测仪器，漂移状态的离子可以沿着聚焦电力线行进，并且由于电极之间的高压间隔以均匀的加速度增加，因此产生的电场使得离子能够均匀地 加速漂移状态，使得检测仪器的灵敏度和分辨率都能达到最佳。