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公开(公告)号：JP2001194236A
公开(公告)日：2001-07-19
申请号：JP2000322359
申请日：2000-10-23
Applicant: ZEISS CARL FA
Inventor： GEIST ALBRECHT , KLEMM FRANK , LOTH MANFRED
Abstract: PROBLEM TO BE SOLVED: To provide a method and a device which record pulse signals of at least two input channels. SOLUTION: Plural input channels are scanned toward an event appearing at a set scanning frequency and after at an event of at least one of the input channels is detected or a counter overflows, the current states of all the input channels in storage registers are stored together with a size featuring a time interval needed for final storage. In an alternative implementation style, a state even in a scanning cycle wherein an event accompanied by storage occurs and a state of a specific number of following scanning cycles are recorded at each storage time. A recorded data format is excel in small necessary storage quantity in case of a pulse signal having a rare event for the scanning frequency. Further, information regarding the whole time elapse of the input signal is held in data stored without any loss of information. Further, the data format is based upon a pulse distance signal and applied to following correlation evaluation.
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公开(公告)号：JPH1151843A
公开(公告)日：1999-02-26
申请号：JP16548198
申请日：1998-06-12
Applicant: ALV LASER VERTRIEBS GMBH
Inventor： PETERS RAINER
IPC: G01J3/02 , G01J3/28 , G01J3/44 , G01J3/457 , G01N15/00 , G01N15/02 , G01N21/47 , G01N21/49 , G01N21/64 , G02B6/04 , G02B6/42
Abstract: PROBLEM TO BE SOLVED: To enable detection at a scattering angle near in a completely opposite direction to an irradiation light with a high photon quantity density, by providing an optical fiber having a gradient index lens at an end part, and a condenser lens condensing the irradiation light, a scattering light, etc. SOLUTION: A fiber detector measuring a concentration of a suspension, etc., has an irradiation fiber 8 of a single mode or a plurality of modes and a detection fiber each of which has a gradient index lens 11 at an end part, and a condenser lens 12. Effectively the irradiation fiber 8 and detection fiber 10 used have the same optical characteristic. A light from a laser 1 is turned to a parallel optical path at an exit of the irradiation fiber 8 and condensed at the lens 12 to a cube 6. A scattering light or a fluorescent light corresponding to an angle α from a suspension or the like in the cube 6 is guided by the detection fiber 10 to a photodetector 7 after passing the lens 12. When a plurality of detection fibers 10 and detectors 7 are used, the light can be measured at a plurality of different scattering angles.
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公开(公告)号：JPH10142054A
公开(公告)日：1998-05-29
申请号：JP27105097
申请日：1997-10-03
Applicant: PERKIN ELMER CORP
Inventor： TRACY DAVID H , GANZ ALAN M , WANG YONGDONG , HUPPLER DAVID A , IVALDI JUAN C , CHRISTOPHER B HANNA
Abstract: PROBLEM TO BE SOLVED: To correctly measure a spectrum by obtaining a spectral shift to an optionally selected sub array position from a difference of offset functions calculated from two offset data of different times. SOLUTION: A first spectral data 40 is collected 42 to a first time 43 of a drift standard. Peak points are compared 46 at a zero position, thereby obtaining a first offset data 50. A first offset function 52 as an xy coordinate function of a sub array is obtained from the data 50 by a computer 54. Thereafter, a second spectral data 56 is collected 42 to a second time 60, and a second offset function 64 is calculated. A difference function 68 of an xy positions in the interval is obtained from a difference 66 of the offset functions 52 and 64, which is interpolated at 70, whereby a spectral shift 72 is obtained. The spectral shift 72 is applied to an optional sample data 76 collected to an optional time 80, and standardized to an optional base time, e.g. the first time 43.
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Patent Agency Ranking
公开(公告)号：JPH1096698A
公开(公告)日：1998-04-14
申请号：JP20305097
申请日：1997-07-29
Applicant: BASF AG
Inventor： SCHROF WOLFGANG DR , KLINGLER JUERGEN DR , HORN DIETER DR
Abstract: PROBLEM TO BE SOLVED: To provide a method with good selectivity for measuring a diffusion parameter of particles, e.g. a diffusion speed, a diffusion coefficient, local concentration, size and the flow behavior of particles, which eliminates marking to particles to be observed. SOLUTION: An excitation light of a light source, particularly a laser is directed to a sample 10, and a Raman scattering light from the observed capacity sample is collected and guided to a spectrometer, particularly a grating spectrograph 6. The light is developed to spectral lines. A luminance of at least one spectral line is measured at least ten times for every second by a photodetector 8, particularly a photoelectric multiplier or a photodiode. Based on the measured luminance value of the spectral line, a diffusion parameter, concentration, size or the flow behavior of particles in the sample corresponding to the spectral line is calculated by analyzing a change in luminance value, particularly a self correlation or a frequency.
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公开(公告)号：JPH06308022A
公开(公告)日：1994-11-04
申请号：JP2186593
申请日：1993-01-14
Applicant: TOA ELECTRONICS , PLAST SHIYORI SOKUSHIN KYOKAI
Inventor： AIKAWA KATSUAKI , SHIRATAMA TADASHI
IPC: G01J3/457 , G01N21/35 , G01N21/3563 , G01N21/359 , G01N33/44
Abstract: PURPOSE:To simply and rapidly identify a type of plastic to sort plastic wastes according to their materials by applying near-infrared rays to plastic of an unknown type to measure an absorption spectrum. CONSTITUTION:Near-infrared rays are applied to plastic of an unknown type to measure an absorption spectrum, its differential spectrum is obtained, and the differential spectrum is observed at predetermined wavelength intervals over a measuring wavelength region. Whether the differential spectrum at each measuring wavelength is on a positive side, a negative side or a side other than these is determined, and a type of the differential spectrum at each measuring wavelength is compared with a differential spectrum obtained in advance on plastic of a known type, thereby identifying the type of an unknown spectrum. A differential spectrum of any order can be used, although a first-order differential spectrum or a second-order differential spectrum may be used.
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公开(公告)号：JPH06213813A
公开(公告)日：1994-08-05
申请号：JP30019893
申请日：1993-11-30
Applicant: URURITSUHI BUARUTAA GURAUSU , MARUCHIN RABARUTO , HAINTSU BUAGUNAA
Inventor： URURITSUHI BUARUTAA GURAUSU , MARUCHIN RABARUTO , HAINTSU BUAGUNAA
Abstract: PURPOSE: To provide a method and device for determining a substance or its characteristic by emitting a radiation to the sample of the substance, which have a wide spectral range and a high selectivity. CONSTITUTION: A sample 3 to determine the material or its characteristic reflects or transmits the electromagnetic radiation of a radiation source 1. The radiation from the sample 3 is collected to several channels and analyzed, and the radiation is modulated with a spectral transmission characteristic 7 individually regulated by each channel. The modulated radiation is transmitted to one or several detectors 9, and its output signal is further electronically processed 10, 11, 12, 13. The spectral ranges sensed by the channels are constant among all the channels, but each channel has the different spectral transmission function 7 within the common range, so that an optimum one can be applied to a prescribed application.
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公开(公告)号：JP5060580B2
公开(公告)日：2012-10-31
申请号：JP2010090879
申请日：2010-04-09
Applicant: トヨタ自動車株式会社 , 日本電気株式会社
CPC classification number: G01J3/457 , G01J1/4204 , G01J3/0264 , G01J3/027 , G01J3/2823 , G06K9/00369 , G06K9/00791 , G06K9/00805 , G06K2009/00644 , G08G1/166
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