公开(公告)号：CN105548017A

公开(公告)日：2016-05-04

申请号：CN201511020916.4

申请日：2015-12-30

Applicant: 北方华锦化学工业集团有限公司

Inventor： 胡世秋 ,  杨东旭 ,  王立志 ,  耿子忠 ,  刘连鹏 ,  王桂成 ,  张岩 ,  杨雪松 ,  张冶 ,  李春龙 ,  孙秀丽 ,  姜翠

IPC: G01N21/15 ,  G01N21/39

CPC classification number: G01N21/15 ,  G01N21/39 ,  G01N2021/151 ,  G01N2021/158 ,  G01N2201/0235 ,  G01N2201/0236 ,  G01N2201/06113

Abstract: 本发明提供了一种非接触式半导体激光气体分析仪，涉及气体分析设备领域，包括通过电信号连接的激光发射单元和发射头，通过电信号连接的激光接收单元和接收头，旁路测量单元，入气气路和出气气路；旁路测量单元位于发射头和接收头之间；入气气路与旁路测量单元靠近发射头的一侧连接，出气气路与旁路测量单元靠近接收头的一侧连接；还包括正压防爆输气系统，正压防爆输气系统包括正压输气泵，正压输气管；正压输气泵提供的防爆压力气体通过正压输气管输入并充满激光发射单元、发射头、接收头和激光接收单元。本发明通过增加正压防爆输气系统，采用正压法，在仪器内始终充满保持微正压的保护气体，隔离有害物质，具有防爆功能。

公开(公告)号：US20180372607A1

公开(公告)日：2018-12-27

申请号：US15527710

申请日：2015-11-19

Applicant: HACH LANGE GMBH

Inventor： MANFRED BATTEFELD ,  HANS-JOACHIM KUMPCH ,  AXEL LEYER ,  BAS DE HEIJ ,  CLEMENS HANSCHKE ,  MICHAEL KUEPPERS ,  ANDREAS JONAK ,  ELK FRICKE ,  HEINZ RUDDE ,  MARKUS HAHN ,  MARKUS LENHARD ,  ROLF UTHEMANN ,  SEBASTIAN MINKE ,  ANDREAS GOLITZ ,  BERND GASSNER ,  FRANK STEINHAUER ,  LOTHAR HEIDEMANNS ,  ANDREAS MITREITER

IPC: G01N15/06 ,  G01N21/15 ,  G01N21/53

CPC classification number: G01N15/06 ,  G01N21/15 ,  G01N21/51 ,  G01N21/53 ,  G01N2015/0693 ,  G01N2021/157 ,  G01N2021/158 ,  G01N2201/0233 ,  G01N2201/0235 ,  G01N2201/0238

Abstract: A nephelometric turbidimeter for measuring a turbidity of a liquid sample in a transparent sample cuvette. The nephelometric turbidimeter includes a cuvette chamber housing with a cuvette chamber having the transparent sample cuvette arranged therein, and a drying apparatus. The drying apparatus includes a cuvette chamber inlet opening which vents the cuvette chamber, a cuvette chamber outlet opening which de-vents the cuvette chamber, an air circulator which circulates air from the cuvette chamber outlet opening to the cuvette chamber inlet opening, and a drying body. The drying body is provided as a container of a hygroscopic agent defined by a drying substance which is arranged in a drying path between the cuvette chamber outlet opening and the cuvette chamber inlet opening so that air flows through the drying body.

公开(公告)号：US20240159664A1

公开(公告)日：2024-05-16

申请号：US18282458

申请日：2022-03-16

Applicant: Medclair AB

Inventor： István Szabó ,  Jerker Sundling ,  Tomas Nyberg

IPC: G01N21/3518 ,  G08B21/12

CPC classification number: G01N21/3518 ,  G08B21/12 ,  G01N2201/0235 ,  G01N2201/0245

Abstract: The present invention relates to a gas sensor (100) comprising a measurement chamber (102) for measuring presence of a first gas, the first gas being nitrous oxide (N2O) and an optical source (103) for emitting radiation in the measurement chamber (102). The sensor also comprises a radiation detector (104) sensitive to radiation emitted by the optical source (103), the radiation being detected by the radiation detector (104) following passage through the measurement chamber (102). A diffusion layer (131) is configured to allow diffusion of ambient gas into and out from the measurement chamber (102), and the diffusion layer (131) comprises means (133) for preventing diffusion of carbon dioxide (CO2) in the ambient gas into the measurement chamber (102). The invention also relates a nitrous oxide detector comprising such a gas sensor, and a method for determining presence of nitrous oxide in the ambience.

公开(公告)号：US20230243753A1

公开(公告)日：2023-08-03

申请号：US18156464

申请日：2023-01-19

Applicant: SciAps, Inc.

Inventor： David Day

IPC: G01N21/71

CPC classification number: G01N21/718 ,  G01N2201/0221 ,  G01N2201/0235

Abstract: A handheld LIES device includes a laser source for generating a laser beam, a spectrometer subsystem for analyzing a plasma generated when the laser beam strikes a sample, and a nose section including an end plate with an aperture for the laser beam and for receiving plasma radiation and an optic spaced from the end plate defining with the end plate a cavity therebetween. An atmospheric purge subsystem includes an air pump with an intake exposed to the atmosphere and a conduit connected to the air pump providing an atmospheric gas mixture to the nose section cavity to purge the cavity of contaminants and keep the optic clean as the atmospheric gas mixture exits the cavity through the end plate aperture.

公开(公告)号：WO2016079259A1

公开(公告)日：2016-05-26

申请号：PCT/EP2015/077151

申请日：2015-11-19

Applicant: HACH LANGE GMBH

Inventor： BATTEFELD, Manfred ,  KUMPCH, Hans-Joachim ,  LEYER, Axel ,  DE HEIJ, Bas ,  HANSCHKE, Clemens ,  KÜPPERS, Michael ,  JONAK, Andreas ,  FRICKE, Eick ,  RUDDE, Heiner ,  HAHN, Markus ,  LENHARD, Markus ,  UTHEMANN, Rolf ,  MINKE, Sebastian ,  GOLITZ, Andreas ,  GASSNER, Bernd ,  STEINHAUER, Frank ,  HEIDEMANNS, Lothar ,  MITREITER, Andreas

IPC: G01N21/15 ,  G01N21/51 ,  G01N21/53

CPC classification number: G01N21/15 ,  G01N21/51 ,  G01N21/53 ,  G01N2021/157 ,  G01N2021/158 ,  G01N2201/0233 ,  G01N2201/0235 ,  G01N2201/0238

Abstract: The invention is directed to a nephelometric turbidimeter (10) for measuring a turbidity of a liquid sample (13) in a transparent sample cuvette (12), the turbidimeter (10) comprising a cuvette chamber (16) defined by a cuvette chamber housing (14) wherein the sample cuvette (12) is arranged, and a drying apparatus comprising : a cuvette chamber inlet opening (38) for venting the cuvette chamber (16) and a cuvette chamber outlet opening (42) for deventing the cuvette chamber (16), an air circulator (49) for pumping air from the outlet opening (42) to the inlet opening (38), and a drying body (32) arranged in the drying path between the outlet opening (42) and the Inlet opening (38). This arrangement allows to actively and dynamically control the air humidity within the cuvette chamber (16).

Abstract translation: 本发明涉及一种用于测量透明样品比色皿（12）中的液体样品（13）的浊度的比浊比浊度计（10），所述浊度计（10）包括由比色杯室壳体（16）限定的比色杯室（16） 14），其中布置有样本比色皿（12），以及干燥装置，包括：用于排空比色杯室（16）的比色皿室入口（38）和用于防止比色皿室（16）的反应杯室出口开口（42） ），用于将空气从出口（42）抽吸到入口（38）的空气循环器（49）和布置在出口（42）和入口开口（42）之间的干燥路径中的干燥体（32） 38）。 这种布置允许主动地和动态地控制反应杯室（16）内的空气湿度。