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公开(公告)号：JPS5436171A
公开(公告)日：1979-03-16
申请号：JP10309277
申请日：1977-08-26
Applicant: HORIBA LTD
Inventor： ASANO ICHIROU
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公开(公告)号：JPS5599052A
公开(公告)日：1980-07-28
申请号：JP805879
申请日：1979-01-24
Applicant: HORIBA LTD
Inventor： ASANO ICHIROU
IPC: G01N23/223 , G01N1/00 , G01N1/28 , G01N23/22
Abstract: PURPOSE:To obtain a solid standard test piece with a high accuracy and stable for a long time for analysis of sulfur and chlorine with fluorescent X-ray by solidifying paraffin solid at the normal temperature and the standard substance of sulfur and/or chlorine after mixed and agitated in the liquid state. CONSTITUTION:Paraffin solid at the normal temperature and the standard substance of sulfur and/or chlorine liquid at the normal temperature or fused by heat in the solid state at the normal temperature are mixed together and agitated in the liquid state and the liquid mixture flows into a test piece cell. The cell is immersed in a cool water and solidified by quick coolig to produce a solid standard test piece. This allows even dispersion of the components quickly in the state of particle during their mixing and agitation as they are both in the state of liquid. At the same time, solidification by cooling eliminates the possibility of separation depending on the difference of specific gravity even when the standard test piece of high concentration is prepared. Thus, it is possible to obtain a solid standard test piece for fluorescent X-ray analysis stable for a long time.
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公开(公告)号：JPS5854724A
公开(公告)日：1983-03-31
申请号：JP15535281
申请日：1981-09-28
Applicant: HORIBA LTD
Inventor： BABA YASUO , ASANO ICHIROU
Abstract: PURPOSE:To lock automatically the phase of two rectangular wave signals having different phase to each other, by integrating and averaging the phase difference and locking the phase at this value. CONSTITUTION:Two repetitive rectangular wave signals (a) and (b) with equal frequency and duty are inputted to a phase difference detection circuit 1. The phase difference detected at this detection circuit 1 integrates the signals (a) and (b) during a prescribed cycle and the average value per unit cycle is calculated from the integration value and applied to a phase-lock circuit 3, where the phase of the signal (a) or (b) is shifted by the phase difference corresponding to the average value obtained at the circuit 2 to lock the phase to the phase of other signal (b) or (a).
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公开(公告)号：JPS55160836A
公开(公告)日：1980-12-15
申请号：JP7044179
申请日：1979-06-02
Applicant: HORIBA LTD
Inventor： TANEI FUMIO , IKEDA TOSHIAKI , ASANO ICHIROU
Abstract: PURPOSE:To remove indication drifts in principle due to contamination of cell window and deterioration of luminous source by causing the known reference sample and a sample to be measured to alternately flow to a measuring cell thereby to process the output obtained. CONSTITUTION:Light emitted from a luminous source 1 passes through the sample within a cell 2 to cause photo absorption, and a measuring wavelength is selected by an interference filter 8 and the light is received by a detector 9. Since the reference sample Z and the sample to be measured S alternately flow, variation of photo absorption due to both samples occurs in a predetermined period. The detector 9 detects an AC waveform close to a sin wave. The output of the detector 9 is added to a meter 14 by way of a preamplifier 11 and further an AC amplifier 12 and a rectifier 13.
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公开(公告)号：JPS59145957A
公开(公告)日：1984-08-21
申请号：JP261483
申请日：1983-01-08
Applicant: Horiba Ltd
Inventor： ASANO ICHIROU , UNO TOSHIHIKO
CPC classification number: G01N29/2425 , G01J1/1626 , G01J2001/4242 , G01N21/1702 , G01N29/00 , G01N2021/1704 , G01N2021/1708 , G01N2291/02809 , G01N2291/0427
Abstract: PURPOSE: To execute a measurement of a low concentration even under a strong noise by a simple constitution by using a signal tone detecting microphone of a narrow band, which has a resonator having a resonance frequency band containing an optical chopping frequency.
CONSTITUTION: A measuring opto-acoustic cell 1 and a comparing opto-acoustic cell 2, which a discharge gas to be measured and a discharge gas containing particulate are led in, respectively are irradiated by laser light passing through optical choppers 15, 16, and an acoustic signal of a chopping frequency is generated by an intensity corresponding to a gas concentration in the cell. This signal is detected by microphones 17, 18 of a narrow band, which are provided on the cells 1, 2 and have a resonator having a resonance frequency band containing an optical chopping frequency, and a concentration of a particulate, etc. in the discharge gas is measured by a division processing. A measurement of a low concentration can be executed exactly under a strong noise by a simple constitution which uses this narrow band microphone of a prescribed resonance band.
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：通过使用具有包含具有光斩波频率的共振频带的谐振器的窄带的信号音检测麦克风，通过简单的结构即使在强噪声下也执行低浓度的测量。 构成：分别通过穿过光学切割器15,16的激光照射待测量的放电气体和含有颗粒的放电气体的测量光声单元1和比较光声单元2， 通过与电池中的气体浓度相对应的强度来产生斩波频率的声音信号。 该信号由设置在单元1,2上的窄带的麦克风17,18检测，并且具有共振频带，其共振频带包含光斩波频率和放电中的微粒等的浓度 通过分割处理测量气体。 通过使用规定的共振频带的窄带麦克风的简单结构，可以精确地在强噪声下执行低浓度的测量。
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Patent Agency Ranking
公开(公告)号：JPS5285884A
公开(公告)日：1977-07-16
申请号：JP179276
申请日：1976-01-08
Applicant: HORIBA LTD
Inventor： ASANO ICHIROU
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公开(公告)号：JPS59126239A
公开(公告)日：1984-07-20
申请号：JP261183
申请日：1983-01-08
Applicant: Horiba Ltd
Inventor： ASANO ICHIROU , UNO TOSHIHIKO
CPC classification number: G01N29/42 , G01N29/00 , G01N29/346 , G01N2291/014 , G01N2291/02809
Abstract: PURPOSE:To enable concn. measurement with high accuracy in low concn. under high noise, by automatically performing such control that chopping frequency is received in a resonance frequency band region. CONSTITUTION:Lead filters 18, 19 have characteristics wherein an inherent resonance frequency band region is extremely narrow and the resonance frequency band region selects noise out of frequency band regions of various noises. In addition, the chopping frequencies of choppers 15, 16 are controlled so as to be made same to the resonance frequencies inherent to oscillation lead filters 30, 31 and signal waves having frequencies same to that of the selected filters 18, 19 are oscillated from an object to be measured. As a result, even if noise is high and gas to be measured low in the concn. of an object to be measured is a target, the concn. measurement of the object to be measured can be performed with high accuracy by utilizing simple amplifiers 22, 23.
Abstract translation: 目的：启用concn。 低精度测量精度高 在高噪声的情况下，通过自动执行在共振频带区域中接收到斩波频率的控制。 构成：引线滤波器18,19具有其中固有谐振频带区域非常窄并且谐振频带区域从各种噪声的频带区域中选择噪声的特性。 此外，斩波器15,16的斩波频率被控制成与振荡引线滤波器30,31固有的谐振频率相同，并且具有与所选择的滤波器18,19的频率相同的频率的信号波从 待测物体 结果，即使噪声高，浓度低的气体也是如此。 要测量的对象是目标， 通过利用简单的放大器22,23可以高精度地进行被测量物体的测量。
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公开(公告)号：JPS5855745A
公开(公告)日：1983-04-02
申请号：JP15655581
申请日：1981-09-29
Applicant: HORIBA LTD
Inventor： ASANO ICHIROU , FUKUSHIMA RIYOUSUKE , SHIRAI TAKASHI
IPC: G01N27/26 , G01D3/08 , G01N27/28 , G01N27/416
Abstract: PURPOSE:To automatize the protection of a detector and to prolong its life, by providing a voltage restriction device on the output side of an operational amplifier and restricting the output voltage and also, carrying out feedback of restricted output voltage. CONSTITUTION:In case of measuring the concentration of oxygen, an output of an operational amplifier 11 is supplied to a voltage limiting device 12 as it is when the concentration is in a range of normal measurement. The output voltage of the amplifier 11 is proportional to the output electric current and current-voltage conversion having a good linearity is carried out. Next, when the concentration is increased abnormally, an output current of an electrode 10 is increased in porportion to its concentration and the output voltage of the amplifier 11 is increased. And, the output voltage of the device 12 is restrained in some fixed value and also, feedback quantity to the amplifier 11 is restricted. Accordingly, input impedance of the circuit observed from the electrode 10 is increased and the output current of the electrode 10 is restricted and then, the electrode is protected.
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公开(公告)号：JPS55166029A
公开(公告)日：1980-12-24
申请号：JP7440879
申请日：1979-06-12
Applicant: HORIBA LTD
Inventor： TANEI FUMIO , IKEDA TOSHIAKI , ASANO ICHIROU
Abstract: PURPOSE:To make possible stable measurement for a long time by logarithmically amplifying the alternate measuring signal extracted as the absorption spectrum and the alternate measuring signal not containing this component prior to AC subtraction. CONSTITUTION:The reference sample Z and the measuring sample S alternately flows to the cell 1 to generate changes in the photoabsorption at one cycle due to both the samples Z and S, and the AC waveform close to the sinewave is detected with detectors 9 and 9'. The alternately measuring signals outputted from the detectors 9 and 9' are respectively processed with the preamplifiers 10 and 10', the logarithmic amplifiers 11 and 11', the AC amplifiers 12 and 12' and the rectifiers 13 and 13' and then with the subtractor 14. The output from the subtractor 14 is given as the function of only the concentration of the sample to be measured. Thus, any variation of the concentration is indicated as changes in the output.
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公开(公告)号：JPS5317772A
公开(公告)日：1978-02-18
申请号：JP9175876
申请日：1976-07-31
Applicant: HORIBA LTD
Inventor： IKEDA TOSHIAKI , ASANO ICHIROU
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