JPH04130066U - Magnetic oxygen analyzer - Google Patents
Magnetic oxygen analyzerInfo
- Publication number
- JPH04130066U JPH04130066U JP4467491U JP4467491U JPH04130066U JP H04130066 U JPH04130066 U JP H04130066U JP 4467491 U JP4467491 U JP 4467491U JP 4467491 U JP4467491 U JP 4467491U JP H04130066 U JPH04130066 U JP H04130066U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- measurement
- magnetic
- pressure
- pole pieces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000001301 oxygen Substances 0.000 title claims abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 65
- 238000005259 measurement Methods 0.000 claims abstract description 52
- 238000001514 detection method Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 229910001873 dinitrogen Inorganic materials 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
(57)【要約】
【目的】構成が簡単で、しかも、設備コストやランニン
グコストが安価な磁気式酸素分析装置を提供すること。
【構成】測定室内にそれぞれ適宜の間隔をおいて対向配
置された２つの磁極片からなる２組の測定極を適宜の間
隔をおいて設け、これらの測定極を交互に励磁して前記
磁極片間に交互に磁界を発生させるとともに、これら磁
極片間に測定ガスと比較ガスとを流すようにした磁気式
酸素分析装置において、前記比較ガスとして乾燥したエ
ヤーを用いると共に、測定室に接続されたガス排気路に
減圧ポンプおよび圧力調整装置を設けてこのガス排気路
を減圧するようにしている。
(57) [Summary] [Purpose] To provide a magnetic oxygen analyzer that has a simple configuration and low equipment and running costs. [Structure] Two sets of measurement poles each consisting of two magnetic pole pieces placed opposite each other at an appropriate interval are provided in the measurement chamber, and these measurement poles are alternately energized to generate the magnetic pole pieces. In a magnetic oxygen analyzer in which a magnetic field is alternately generated between the magnetic pole pieces and a measurement gas and a comparison gas are caused to flow between these magnetic pole pieces, dry air is used as the comparison gas, and a A pressure reducing pump and a pressure regulating device are provided in the gas exhaust path to reduce the pressure in the gas exhaust path.
Description
【０００１】0001
本考案は、磁気式酸素分析装置、特に、界面圧力差方式の磁気式酸素分析装置 の改良に関する。 The present invention is a magnetic oxygen analyzer, especially an interfacial pressure difference type magnetic oxygen analyzer. Regarding improvements.
【０００２】0002
この種の磁気式酸素分析装置として、例えば実公昭59ー2522号公報や実公平２ −8209号公報に示されるものがあり、図２および図３はこれら公報に開示された 分析計をそれぞれ示している。 As this type of magnetic oxygen analyzer, for example, Utility Model Publication No. 59-2522 and Utility Model Publication No. 2 - There is something shown in Publication No. 8209, and Figures 2 and 3 are disclosed in these publications. Each analyzer is shown.
【０００３】 すなわち、図２および図３において、１は非磁性材料よりなる壁に囲まれた測 定室で、その内部には適宜の間隔をおいて２組の測定極２，３が設けられている 。これらの測定極２，３は、それぞれ適宜の間隔をおいて対向配置された２つの 磁極片2A, 2B、3A, 3Bよりなる。そして、図示してないが、各組の測定極２，３ における対向する磁極片2A, 2B、3A, 3Bは継鉄によって磁気的閉ループを構成す るようにしてあると共に、前記継鉄にはそれぞれコイルが巻設してあって、両コ イルを交互に通電することにより測定極２，３を交互に励磁し、磁極片2A, 2B間 、磁極片3A, 3B間に磁界が交互に生ずるようにしてある。0003 That is, in FIGS. 2 and 3, 1 is a measurement area surrounded by a wall made of non-magnetic material. It is a fixed room, inside which two sets of measurement poles 2 and 3 are installed at appropriate intervals. . These measurement poles 2 and 3 are two electrodes placed opposite each other at an appropriate interval. Consists of magnetic pole pieces 2A, 2B, 3A, 3B. Although not shown, each set of measurement poles 2 and 3 The opposing magnetic pole pieces 2A, 2B, 3A, and 3B form a magnetic closed loop with yokes. At the same time, a coil is wound around each of the yoke, and both coils are wound around the yoke. Measurement poles 2 and 3 are alternately energized by alternately energizing the pole pieces 2A and 2B. , magnetic fields are generated alternately between the magnetic pole pieces 3A and 3B.
【０００４】 ４は図外の測定ガス源に接続された測定ガス供給路で、ポンプ５，調圧器６を 備え、その下流側においては測定室１内に測定ガスＳを導入するための２つの測 定ガス導入路７，８に分岐されている。各測定ガス導入路７，８は、それぞれ流 量調整器としてのキャピラリ９，10を備えると共に、測定室１に開設された開口 1a，1bに接続されている。0004 4 is a measurement gas supply line connected to a measurement gas source (not shown), which connects the pump 5 and pressure regulator 6. On the downstream side, there are two measuring instruments for introducing the measuring gas S into the measuring chamber 1. It is branched into constant gas introduction paths 7 and 8. Each measurement gas introduction path 7, 8 has a flow In addition to being equipped with capillaries 9 and 10 as volume regulators, an opening opened in the measurement chamber 1 Connected to 1a and 1b.
【０００５】 11，12は互いに独立した圧力伝達路で、それぞれ流量調整器としてのキャピラ リ13, 14を備えると共に、一端側は前記磁極片2A, 3Aに開設された開口2a, 3aに それぞれ連なり、他端側はコンデンサマイクロフォン検出器15の可動隔膜 15Aに よって仕切られた検出室15B, 15Cとそれぞれ接続されている。各圧力伝達路11, 12には、分岐供給路16, 17を介してそれぞれ比較ガスＲを供給するための比較ガ ス供給路18が接続されている。[0005] 11 and 12 are independent pressure transmission paths, each with a capillary as a flow regulator. 13 and 14, and one end side is connected to the openings 2a and 3a formed in the magnetic pole pieces 2A and 3A. The other end is connected to the movable diaphragm 15A of the condenser microphone detector 15. Therefore, they are connected to the partitioned detection chambers 15B and 15C, respectively. Each pressure transmission path 11, 12 is a comparison gas for supplying comparison gas R via branch supply paths 16 and 17, respectively. A gas supply path 18 is connected thereto.
【０００６】 すなわち、図２に示す比較ガス供給路18は、純粋な窒素ガスを収容した窒素ガ スボンベ19と制御弁20と調圧器21とを直列に接続して構成してあって、窒素ガス を比較ガスＲとして用いるようにしてあり、また、図３に示す比較ガス供給路18 は、大気に連なり、大気中の不純物を除去するフィルタ22, ポンプ23, シリカゲ ルなどの除湿剤を充填した除湿器24, 調圧器25を直列に接続して構成してあって 、エヤーＡを適宜乾燥して比較ガスＲとして用いるようにしてある。[0006] That is, the comparison gas supply path 18 shown in FIG. 2 is a nitrogen gas supply path containing pure nitrogen gas. A gas bomb 19, a control valve 20, and a pressure regulator 21 are connected in series, and a nitrogen gas is used as the comparison gas R, and the comparison gas supply path 18 shown in FIG. is a filter 22, pump 23, and silica gel that connects to the atmosphere and removes impurities from the atmosphere. It consists of a dehumidifier 24 filled with a dehumidifying agent such as chlorine, and a pressure regulator 25 connected in series. , Air A is suitably dried and used as comparative gas R.
【０００７】 再び両図において、 15Dは可動隔膜 15Aに対向して一方の検出室 15C内に設け られる固定極で、この固定極 15Dによって取り出される出力はプリアンプ26を介 して図外の信号処理回路に入力されるようにしてある。また、27は測定室１に開 設された開口1cに連なるガス排出路である。[0007] Again in both figures, 15D is installed in one detection chamber 15C opposite the movable diaphragm 15A. The output taken out by this fixed pole 15D is passed through the preamplifier 26. The signal is then input to a signal processing circuit (not shown). In addition, 27 is open to measurement room 1. This is a gas exhaust path connected to the provided opening 1c.
【０００８】 而して、上記図２および図３に示す磁気式酸素分析装置においては、測定極２ ，３を交互に励磁している状態において、測定室１内に、開口1a, 1bを介してポ ンプ５で加圧した測定ガスＳを導入すると共に、開口2a，3aを介して比較ガスＲ を導入すると、磁極片2A, 2B間，磁極片3A, 3B間には、測定ガスＳおよび比較ガ スＲのそれぞれの磁化率の差に比例した界面圧力が交互に発生する。この界面圧 力は、圧力伝達路11, 12を経てコンデンサマイクロフォン検出器15の検出室15B, 15Cに伝達され、可動隔膜 15Aを押圧しこれを変位させる。この結果、前記界面 圧力は、可動隔膜 15Aと固定極 15Dとの間の静電容量の変化として固定極 15Dか ら出力され、所定の増幅および変換処理を経た後、図外の表示部において酸素濃 度として表示されるのである。[0008] In the magnetic oxygen analyzer shown in FIGS. 2 and 3 above, the measurement electrode 2 , 3 are alternately excited, a port is inserted into the measurement chamber 1 through the openings 1a and 1b. The measurement gas S pressurized by the pump 5 is introduced, and the comparison gas R is introduced through the openings 2a and 3a. When the magnetic pole pieces 2A and 2B are introduced, and between the magnetic pole pieces 3A and 3B, the measurement gas S and the comparison gas are connected. Interfacial pressure proportional to the difference in magnetic susceptibility of each of the atoms R is generated alternately. This interfacial pressure The force is transmitted to the detection chamber 15B of the condenser microphone detector 15 through pressure transmission paths 11 and 12, 15C and presses the movable diaphragm 15A to displace it. As a result, the interface The pressure is determined by the change in capacitance between the movable diaphragm 15A and the fixed pole 15D. After going through the specified amplification and conversion processing, the oxygen concentration is displayed on the display (not shown). It is displayed as degrees.
【０００９】[0009]
しかしながら、上記図２に示した磁気式酸素分析装置においては、酸素濃度の 測定に際しては純粋な窒素ガスが必要であり、それだけランニングコストが嵩む 他、窒素ガスボンベ19内の窒素ガスの残量を監視したり、ボンベ交換を行うなど の作業が必要であるといった問題点がある。 However, in the magnetic oxygen analyzer shown in Figure 2 above, the oxygen concentration Pure nitrogen gas is required for measurement, which increases running costs. In addition, monitoring the remaining amount of nitrogen gas in the nitrogen gas cylinder 19, replacing the cylinder, etc. There are problems such as the need for additional work.
【００１０】 また、図３に示した磁気式酸素分析装置においては、高価な窒素ガスを用いな いからランニングコストは嵩まないものの、測定ガスＳの供給用のポンプ５の他 に、比較ガスＲの供給用のポンプ23や調圧器25が必要となり、それだけ構成が複 雑で、設備コストが嵩むといった問題点がある。0010 In addition, the magnetic oxygen analyzer shown in Figure 3 does not use expensive nitrogen gas. Although the running cost does not increase, other than the pump 5 for supplying the measurement gas S, In addition, a pump 23 and a pressure regulator 25 for supplying the comparison gas R are required, which increases the complexity of the configuration. There are problems in that it is complicated and the equipment cost increases.
【００１１】 本考案は、上述の事柄に留意してなされたもので、その目的とするところは、 構成が簡単で、しかも、設備コストやランニングコストが安価な磁気式酸素分析 装置を提供することにある。[0011] This invention was made with the above-mentioned considerations in mind, and its purpose is to: Magnetic oxygen analysis with simple configuration and low equipment and running costs The goal is to provide equipment.
【００１２】0012
上記目的を達成するため、本考案においては、測定室内にそれぞれ適宜の間隔 をおいて対向配置された２つの磁極片からなる２組の測定極を適宜の間隔をおい て設け、これらの測定極を交互に励磁して前記磁極片間に交互に磁界を発生させ るとともに、これら磁極片間に測定ガスと比較ガスとを流し、磁化率の差に基づ いて発生する界面圧力を圧力伝達路を介してコンデンサマイクロフォン検出器の 可動隔膜によって仕切られた２つの検出室に導入して、前記可動隔膜と固定電極 との間の静電容量の変化に基づいて測定ガスにおける酸素濃度を検出するように した磁気式酸素分析装置において、前記比較ガスとして乾燥したエヤーを用いる と共に、測定室に接続されたガス排気路に減圧ポンプおよび圧力調整装置を設け てこのガス排気路を減圧するようにしている。 In order to achieve the above purpose, in this invention, appropriate intervals are placed in the measurement chamber. Two sets of measurement poles consisting of two magnetic pole pieces placed opposite each other with an appropriate distance between them. These measurement poles are alternately energized to alternately generate a magnetic field between the magnetic pole pieces. At the same time, a measurement gas and a reference gas are flowed between these magnetic pole pieces, and the difference in magnetic susceptibility is The interfacial pressure generated by the condenser microphone detector is transmitted through the pressure transmission path. The movable diaphragm and the fixed electrode are introduced into two detection chambers separated by a movable diaphragm. to detect the oxygen concentration in the measured gas based on the change in capacitance between In the magnetic oxygen analyzer, dry air is used as the comparison gas. At the same time, a decompression pump and pressure adjustment device are installed in the gas exhaust line connected to the measurement chamber. The lever is designed to reduce the pressure in the gas exhaust path.
【００１３】[0013]
上記構成によれば、測定室に接続されたガス排気路によって測定室内が減圧さ れるので、測定ガスおよび比較ガスを加圧しなくても測定室内に導入することが でき、設備コストを低減できる。また、比較ガスとして乾燥したエヤーを用いて いるので、ランニングコストを低減できると共に、比較ガス内の酸素密度の変化 が防止されるので、精度の高い測定が可能になる。 According to the above configuration, the pressure inside the measurement chamber is reduced by the gas exhaust path connected to the measurement chamber. This allows the measurement gas and reference gas to be introduced into the measurement chamber without pressurizing them. It is possible to reduce equipment costs. In addition, using dry air as a comparison gas, This reduces running costs and eliminates changes in oxygen density in the comparison gas. Since this is prevented, highly accurate measurements are possible.
【００１４】[0014]
以下、本考案の実施例を、図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
【００１５】 図１は、本考案に係る磁気式酸素分析装置の一例を示し、この図において、図 ２および図３における符号と同一の符号は同一物または相当物を示す。[0015] FIG. 1 shows an example of a magnetic oxygen analyzer according to the present invention. 2 and 3 indicate the same or equivalent components.
【００１６】 さて、この図１において、28は図外の測定ガス源に接続された測定ガス供給路 で、この測定ガス供給路28は、図２および図３に示した測定ガス供給路と異なり 、ポンプや調圧器を備えていない。29は比較ガス供給路で、大気に連なり大気中 の不純物を除去するフィルタ30、このフィルタ30を経て比較ガス供給路29内に導 入されるエヤーＡを適宜除湿してその水分量の変化を抑えるためのシリカゲルな どの除湿剤を充填した除湿器31、この除湿器31を経たエヤーＡ中に含まれるシリ カゲルなどの微粉を除去するチップフィルタ32が直列に接続して介装されており 、このチップフィルタ32の下流側は２つの比較ガス導入路33，34に分岐されてい る。[0016] Now, in this Figure 1, 28 is a measurement gas supply line connected to a measurement gas source not shown. This measurement gas supply path 28 is different from the measurement gas supply path shown in FIGS. 2 and 3. , not equipped with a pump or pressure regulator. 29 is the comparison gas supply line, which connects to the atmosphere and A filter 30 that removes impurities is introduced into the comparison gas supply path 29 through this filter 30. Silica gel is used to appropriately dehumidify the incoming air A and suppress changes in its moisture content. Which dehumidifier is filled in the dehumidifier 31, and what type of silicone is contained in the air A that has passed through this dehumidifier 31? A chip filter 32 is connected in series to remove fine particles such as dirt. , the downstream side of this chip filter 32 is branched into two comparison gas introduction paths 33 and 34. Ru.
【００１７】 各比較ガス導入路33，34は、それぞれ流量調整器としてのキャピラリ35，36を 備えると共に、コンデンサマイクロフォン検出器15の検出室15B, 15Cとそれぞれ 接続されている。そして、この実施例においては、各検出室15B, 15Cは、圧力伝 達路37, 38を介してそれぞれ磁極片2A, 3Aに開設された開口2a, 3aに接続されて いる。[0017] Each comparison gas introduction path 33, 34 has a capillary 35, 36 as a flow rate regulator, respectively. In addition, detection chambers 15B and 15C of the condenser microphone detector 15 are provided, respectively. It is connected. In this embodiment, each detection chamber 15B, 15C is a pressure transmitter. are connected to the openings 2a and 3a provided in the pole pieces 2A and 3A through the channels 37 and 38, respectively. There is.
【００１８】 39は測定室１に開設された開口1cに連なるガス排出路で、このガス排出路39を 減圧するための減圧ポンプ40と、ガス排出路39の脈動を防止するためのバッファ タンク41と減圧弁42とからなる圧力調整装置43とを、減圧ポンプ40が下流側に位 置するように設けてある。[0018] 39 is a gas exhaust path connected to the opening 1c opened in the measurement chamber 1, and this gas exhaust path 39 is A pressure reducing pump 40 for reducing pressure and a buffer for preventing pulsation in the gas exhaust path 39 A pressure regulator 43 consisting of a tank 41 and a pressure reducing valve 42 is connected to a pressure reducing pump 40 located downstream. It is set up so that it can be placed.
【００１９】 而して、上記構成の磁気式酸素分析装置においては、減圧ポンプ40と減圧弁42 の働きにより、ガス排出路39を減圧することにより、測定室１内が例えば− 0.1 気圧程度になり、これによって、測定ガスＳおよび比較ガスＲがそれぞれキャピ ラリ９，10および35, 36によって定量された状態で測定室１内に導入される。こ のとき、比較ガスＲとして用いられるエヤーＡは、シリカゲルなどの除湿剤を充 填した除湿器31において適宜除湿されてその水分量の変化が抑えられ、その酸素 密度の変化が防止されるので、このような比較ガスＲを用いて測定を行った場合 、その測定精度が高くなるといった利点がある。[0019] In the magnetic oxygen analyzer having the above configuration, the pressure reducing pump 40 and the pressure reducing valve 42 are By reducing the pressure in the gas exhaust path 39, the inside of the measurement chamber 1 is reduced to -0.1, for example. This causes the measurement gas S and the comparison gas R to reach their respective capacitances. The sample is introduced into the measurement chamber 1 in a quantified state by the calibrators 9, 10 and 35, 36. child In this case, air A used as comparison gas R is filled with a dehumidifying agent such as silica gel. The filled dehumidifier 31 dehumidifies the moisture appropriately, suppresses changes in the moisture content, and removes the oxygen. When performing measurements using such a comparison gas R, since changes in density are prevented. , which has the advantage of increasing measurement accuracy.
【００２０】[0020]
以上説明したように、本考案によれば、測定室に対して測定ガスや比較ガスを 導入する機構が簡単になると共に、設備コストが低減できる。また、比較ガスと して乾燥した空気を用いているので、ランニングコストが低減できると共に、比 較ガス中の酸素密度の変化が防止されるので、精度の高い測定を行うことができ る。 As explained above, according to the present invention, the measurement gas and the comparison gas are supplied to the measurement chamber. The mechanism to be introduced becomes simple and equipment costs can be reduced. Also, comparison gas and Since air is dried and dried, running costs can be reduced and This prevents changes in the oxygen density in the reference gas, allowing highly accurate measurements. Ru.
【図１】本考案に係る磁気式酸素分析装置の一例を示す
構成図である。FIG. 1 is a configuration diagram showing an example of a magnetic oxygen analyzer according to the present invention.
【図２】従来の磁気式酸素分析装置を示す構成図であ
る。FIG. 2 is a configuration diagram showing a conventional magnetic oxygen analyzer.
【図３】従来の磁気式酸素分析装置を示す構成図であ
る。FIG. 3 is a configuration diagram showing a conventional magnetic oxygen analyzer.
１…測定室、２，３…測定極、2A, 2B, 3A, 3B…磁極
片、15…コンデンサマイクロフォン検出器、 15A…可動
隔膜、15B, 15C…検出室、37, 38…圧力伝達路、39…ガ
ス排気路、40…減圧ポンプ、43…圧力調整装置、Ｓ…測
定ガス、Ｒ…比較ガス、Ａ…エヤー。1...Measurement chamber, 2, 3...Measurement pole, 2A, 2B, 3A, 3B...Magnetic pole piece, 15...Condenser microphone detector, 15A...Movable diaphragm, 15B, 15C...Detection chamber, 37, 38...Pressure transmission path, 39...Gas exhaust path, 40...Reducing pump, 43...Pressure regulator, S...Measurement gas, R...Comparison gas, A...Air.
Claims (1)
対向配置された２つの磁極片からなる２組の測定極を適
宜の間隔をおいて設け、これらの測定極を交互に励磁し
て前記磁極片間に交互に磁界を発生させるとともに、こ
れら磁極片間に測定ガスと比較ガスとを流し、磁化率の
差に基づいて発生する界面圧力を圧力伝達路を介してコ
ンデンサマイクロフォン検出器の可動隔膜によって仕切
られた２つの検出室に導入して、前記可動隔膜と固定電
極との間の静電容量の変化に基づいて測定ガスにおける
酸素濃度を検出するようにした磁気式酸素分析装置にお
いて、前記比較ガスとして乾燥したエヤーを用いると共
に、前記測定室に接続されたガス排気路に減圧ポンプお
よび圧力調整装置を設けてこのガス排気路を減圧するよ
うにしたことを特徴とする磁気式酸素分析装置。1. Two sets of measurement poles each consisting of two magnetic pole pieces placed opposite each other at an appropriate interval are provided in a measurement chamber at an appropriate interval, and these measurement poles are alternately energized to A magnetic field is generated alternately between the magnetic pole pieces, and a measurement gas and a reference gas are flowed between these magnetic pole pieces, and the interfacial pressure generated based on the difference in magnetic susceptibility is transmitted via a pressure transmission path to the movement of the condenser microphone detector. A magnetic oxygen analyzer that is introduced into two detection chambers separated by a diaphragm and detects the oxygen concentration in the measurement gas based on a change in capacitance between the movable diaphragm and a fixed electrode, Magnetic oxygen analysis characterized in that dry air is used as the comparison gas, and a pressure reducing pump and a pressure adjustment device are provided in the gas exhaust path connected to the measurement chamber to reduce the pressure in the gas exhaust path. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991044674U JP2552937Y2 (en) | 1991-05-18 | 1991-05-18 | Magnetic oxygen analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991044674U JP2552937Y2 (en) | 1991-05-18 | 1991-05-18 | Magnetic oxygen analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04130066U true JPH04130066U (en) | 1992-11-30 |
| JP2552937Y2 JP2552937Y2 (en) | 1997-11-05 |
Family
ID=31924732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991044674U Expired - Lifetime JP2552937Y2 (en) | 1991-05-18 | 1991-05-18 | Magnetic oxygen analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2552937Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015049219A (en) * | 2013-09-04 | 2015-03-16 | 富士電機株式会社 | Magnetic oxygen analyzer |
| JP2015049220A (en) * | 2013-09-04 | 2015-03-16 | 富士電機株式会社 | Magnetic oxygen analysis method and magnetic oxygen analyzer |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8461187B2 (en) | 2004-06-16 | 2013-06-11 | Takeda Pharmaceuticals U.S.A., Inc. | Multiple PPI dosage form |
| JP5629581B2 (en) | 2007-10-12 | 2014-11-19 | タケダ ファーマシューティカルズ ユー．エス．エー． インコーポレイティド | Method for treating digestive disorders independent of food intake |
| JP5525808B2 (en) * | 2009-12-25 | 2014-06-18 | 株式会社堀場製作所 | Magnetic pressure oxygen analyzer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426798A (en) * | 1977-07-30 | 1979-02-28 | Fuji Electric Co Ltd | Oxygen analyzer of magnetic pressure type |
| JPS54139797A (en) * | 1978-04-21 | 1979-10-30 | Fuji Electric Co Ltd | Calibration method of magnetic type oxygen analyzer |
| JPS6325547A (en) * | 1986-05-27 | 1988-02-03 | アクティ−ゼルスカベト・ブリュ−ル・ウント・キェ−ル | Device for determining concentration of paramagnetic gas |
| JPH02141853U (en) * | 1989-04-29 | 1990-11-29 |
-
1991
- 1991-05-18 JP JP1991044674U patent/JP2552937Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426798A (en) * | 1977-07-30 | 1979-02-28 | Fuji Electric Co Ltd | Oxygen analyzer of magnetic pressure type |
| JPS54139797A (en) * | 1978-04-21 | 1979-10-30 | Fuji Electric Co Ltd | Calibration method of magnetic type oxygen analyzer |
| JPS6325547A (en) * | 1986-05-27 | 1988-02-03 | アクティ−ゼルスカベト・ブリュ−ル・ウント・キェ−ル | Device for determining concentration of paramagnetic gas |
| JPH02141853U (en) * | 1989-04-29 | 1990-11-29 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015049219A (en) * | 2013-09-04 | 2015-03-16 | 富士電機株式会社 | Magnetic oxygen analyzer |
| JP2015049220A (en) * | 2013-09-04 | 2015-03-16 | 富士電機株式会社 | Magnetic oxygen analysis method and magnetic oxygen analyzer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2552937Y2 (en) | 1997-11-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |