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    • 4. 发明专利
    • Detection of impure gas
    • 检测气体
    • JPS61130864A
    • 1986-06-18
    • JP25347984
    • 1984-11-30
    • Nippon Paionikusu Kk
    • ASANO FUSHINOBUOTSUKA KENJI
    • G01N25/18G01N27/18G01N33/00
    • G01N33/0026
    • PURPOSE:To detect the mixing of a trace of impure gas accurately, by feeding a refined gas and a measuring gas alternately to the sample side of a heat conductivity detector by switching. CONSTITUTION:First, valves 8a and 8b are opened while a valve 8c closed and a refined gas is fed to the reference side 4 and the sample side 6 of a heat conductivity detector 1 from branches 5a and 5b and the base line of the potential difference of a recorder 2 is adjusted to zero. Then, the valve 8b is closed while the valve 8c is opened to feed a measuring gas to the sample side 6. After a fixed time passes, the valve 8c is closed and the valve 8b is opened to switch the refined gas over to the sample side 6. Thereafter, this operation is repeated to feed the refined gas and the measuring gas alternately to the sample side 6 by switching. Here, when any impure gas is contained in the measuring gas, the potential difference due to the heat conductivity of the impure gas increases or decreases by a step each time the refined gas and the measuring gas are switched and this variation is recorded on a recorder 2 thereby enabling the detection of the content thereof.
    • 目的:通过切换,将精细气体和测量气体交替地传送到热导检测器的样品侧,以精确地检测痕量不纯气体的混合。 构成:首先,在阀8c闭合并且精细气体从分支5a和5b以及电位差的基线被供给到参考侧4和导热性检测器1的样品侧6的同时打开阀8a和8b 的记录器2被调整为零。 然后,阀8b关闭,同时阀8c打开以将测量气体供给到样品侧6.固定时间过后,阀8c关闭,阀8b打开以将精炼气体转换到样品 然后重复该操作,通过切换将精炼气体和测量气体交替地供给到样品侧6。 这里,当测量气体中含有不纯气体时,由于不纯气体的导热性引起的电位差每当精炼气体和测量气体被切换并且这种变化被记录在记录器上时逐渐增加或减小 2,从而能够检测其内容。
    • 7. 发明专利
    • Photoionization detector and method for continuous operation and real time self cleaning
    • 光电探测器和连续运行和实时自清洁方法
    • JP2003066008A
    • 2003-03-05
    • JP2002155806
    • 2002-05-29
    • Rae Systems Incラエ・システムズ・インコーポレイテッド
    • SUN HONG THSI PETER C
    • G01N27/64G01N27/66G01N33/00H01J41/02
    • G01N33/0026G01N27/66G01N33/0029G01N33/0047H01J41/02
    • PROBLEM TO BE SOLVED: To provide a photoionization detector (PID) capable of simultaneously carrying out measurement and self-cleaning.
      SOLUTION: This photoionization detector PID has a microprocessor (MP), a first gas detecting unit (DUI), and a second gas detecting unit (DU2). The MP controls the DU1 and the DU2, and it always streams environmental gas (EG) through one ionization chamber (ICh) and detains the EG in the ICh of the other DU. A UV lamp (UV) converts oxygen in the EG to ozone, and it removes contaminated substances in the ICh. When the PID has only one DU, the MP controls the DU, and intermittently interrupts the flow of the EG of the ICh. As for measurement of real time self-cleaning and concentration of volatile gas (VG) by the PID, the PID measures the concentration of the VG by streaming the EG through the ICh of the DU1, and the EG passing through the ICh of the DU2 is hermetically sealed in the inside to be used for self- cleaning. The UV converts oxygen contained in the EG in the ICh of the DU2 to ozone, and removes contaminated substances in the ICh of the DU2.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供能够同时进行测量和自清洁的光电离检测器(PID)。 解决方案:该光电离检测器PID具有微处理器(MP),第一气体检测单元(DUI)和第二气体检测单元(DU2)。 MP控制DU1和DU2,它总是通过一个电离室(ICh)流出环境气体(EG),并扣留另一个DU的ICh中的EG。 UV灯(UV)将EG中的氧气转化为臭氧,并清除ICh中的污染物质。 当PID只有一个DU时,MP控制DU,间歇地中断ICh的EG的流动。 对于PID的实时自清洁和挥发性气体浓度的测量,PID通过DU1的ICh流动EG测量VG的浓度,EG通过DU2的ICh 密封在内部用于自洁。 UV将DU2的ICh中的EG中所含的氧转化为臭氧,并除去DU2的ICh中的污染物质。
    • 8. 发明专利
    • Cell for measuring gas component
    • 用于测量气体成分的气体
    • JPS59182334A
    • 1984-10-17
    • JP5751383
    • 1983-03-31
    • Shimadzu Corp
    • OKA SHIYOUTAROUTAWARA OSAMUKOBAYASHI JIYUNYA
    • G01N5/02G01N33/00
    • G01N33/0026
    • PURPOSE:To measure the gas component in good respondency by forming the gas introducing tube part into a cell to the double-tube structure for reference and sample gases and situating the opening surface in the vicinity of the center part of a piezoelectric element plate formed with a gas sensitive film. CONSTITUTION:The humidity measuring cell 9 contains a humidity sensor 3 forming a humidity-sensitive film 33' at the center part of the surface of the piezoelectric element plate 31 through a film electrode 32, and consists of a gas exhausting tube part 2 and a cell vessel 4 having the tubes 10, 11 for introducing the sample and reference gases. The opening part 12 of the tubes 10 and 11 in the cell is of double-tube structure, and the opening surface 13 opposes at the vicinity of the center part of the plate 31. The reference gas and the sample gas are allowed to flow alternately, and the humidity of the sample gas is measured from the variation of the response of the sensor 3. The adverse influence due to the gas adsorption is decreased by separating the introducing tubes for the reference and sample gases, and the respondency and sensitivity of the humidity sensor are improved by introducing the gas to the center part of the piezoelectric element plate under the double-tube structure condition.
    • 目的:通过将气体导入管部分形成单元到双管结构中作为参考和样品气体,并将形成有压电元件板的中心部分附近的开口表面定位,以良好的响应度测量气体成分 气敏膜。 湿度测量单元9包含湿度传感器3,湿度传感器3通过薄膜电极32在压电元件板31的表面的中心部分处形成湿敏膜33',并由排气管部分2和 具有用于引入样品和参考气体的管10,11的细胞容器4。 电池中的管10和11的开口部分12是双管结构的,并且开口表面13在板31的中心部分附近相对。使参考气体和样品气体交替流动 ,并且根据传感器3的响应的变化来测量样品气体的湿度。通过分离用于参考和样品气体的引入管来减少由于气体吸附而产生的不利影响,并且响应和灵敏度 通过在双管结构条件下将气体引入压电元件板的中心部分来改善湿度传感器。
    • 10. 发明专利
    • ガス分析装置
    • 气体分析仪
    • JP2015127679A
    • 2015-07-09
    • JP2013273411
    • 2013-12-27
    • 株式会社堀場製作所
    • 水野 裕介生田 卓司荒川 実里
    • G01N21/76
    • G01N21/766G01N33/0026G01N2201/129
    • 【課題】化学発光法により試料ガス中の所定成分の濃度を精度よく測定することができるガス分析装置を提供する。 【解決手段】ガス分析装置100は、ガス分析部1と、発光誘発成分発生部2と、測定信号算出部31と、を有する。ガス分析部1は、所定成分を含んだ試料ガス及び/又は基準ガスと、発光誘発ガスとを導入可能である。また、ガス分析部1は、所定成分と発光誘発成分との相互作用により発生する反応光の強度に基づいた検出信号を出力する。発光誘発成分発生部2は、放電発生間隔の時間を空けて繰り返し発生される放電により発光誘発ガスを発生する。測定信号算出部31は、試料ガスと発光誘発ガスとが導入されることにより発生する反応光に基づいた第1検出信号と、基準ガスと発光誘発ガスとが導入されることにより発生する反応光に基づいた第2検出信号とに基づいて、第1測定信号を算出する。 【選択図】図1
    • 要解决的问题:提供一种能够通过化学发光法精确测定样品气体中的规定成分浓度的气体分析装置。气体分析装置100具有气体分析装置1,发光诱导成分生成装置2 和测量信号计算单元31.气体分析单元1可以引入包括预定组分的样品气体和/或参考气体以及发光诱导气体。 气体分析单元1基于由预定组分和发光诱导组分的相互作用产生的反应光的强度输出检测信号。 发光诱导分量产生单元2通过在放电产生间隔反复产生的放电产生发光诱导气体。 测量信号计算单元31基于在引入样本气体和发光诱导气体时产生的反应光的第一检测信号来计算第一测量信号,并且基于产生的反应光的第二检测信号 当引入参考气体和发光诱导气体时。