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公开(公告)号：EP4413324A1
公开(公告)日：2024-08-14
申请号：EP22786411.3
申请日：2022-10-04
申请人： Teraview Limited
发明人： PENTLAND, Ian Alasdair , PORTIERI, Alessia , TADAY, Philip Francis , COLE, Dr Bryan Edward , ARNONE, Donald Dominic
IPC分类号： G01B11/06 , G01B11/24 , G01B21/04 , G01N21/3586
CPC分类号： G01B11/0625 , G01B21/045 , G01B11/24
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公开(公告)号：EP4325205A3
公开(公告)日：2024-08-07
申请号：EP23217411.0
申请日：2018-01-26
申请人： Teraview Limited
CPC分类号： G01B11/0625 , G01B17/00 , G01B11/026
摘要： A method for determining the thickness of a plurality of coating layers, the method comprising:
performing a calibration analysis on calibration data to determine initial values and search limits of optical parameters of said plurality of coating layers,
irradiating the said plurality of layers with a pulse of THz radiation, said pulse comprising a plurality of frequencies in the range from 0.01 THz to 10 THz;
detecting the reflected radiation to produce a sample response said sample response being derived from the reflected radiation;
producing a synthesised waveform using the optical parameters and predetermined initial thicknesses of said layers; and
varying said thicknesses and varying said optical parameters within the said search limits to minimise the error measured between the sample response and the synthesised waveform; and
outputting the thicknesses of the layers.-
公开(公告)号：EP1613935B1
公开(公告)日：2016-03-16
申请号：EP04721921.7
申请日：2004-03-19
申请人： Teraview Limited
发明人： COLE, Bryan, Edward, TeraView Limited , KEMP, Michael, Charles, TeraView Limited , TRIBE, William, Roylan, TeraView Limited , TADAY, Philip, Francis, TeraView Limited
CPC分类号： G01N21/3581 , G01J3/42 , G01N21/3563
摘要： Apparatus and method for detecting an explosive material, involving irradiating an object with a continuous wave (CW) or pulsed beam of Terahertz radiation, preferably in the frequency range of 100 GHz to 100 THz and detecting radiation transmitted and/or reflected from the object. A spectrum is constructed from the detected radiation, which is indicative of a fundamental property of the explosive material. This constructed spectrum is compared with one or more known spectra of explosive materials to determine whether a likeness exists.
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公开(公告)号：EP1660867A1
公开(公告)日：2006-05-31
申请号：EP04768240.6
申请日：2004-08-27
申请人： Teraview Limited
IPC分类号： G01N21/49
CPC分类号： G01N21/9508 , G01N21/3581 , G01N21/49
摘要： Method and apparatus for investigating a sample particularly a pharmaceutical tablet. An emitter and/or the sample are initially positioned so that the emitter is at a predetermined distance and normal angle to a first point on a surface of the sample. The emitter then irradiates the sample with radiation having a plurality of frequencies in the range from 25GHz to 100THz at a plurality of points on the surface of the sample. Relative motion is possible between the emitter and the sample so that the surface of the sample can be tracked to maintain the predetermined distance and normal angle at each of the plurality of points, and allow radiation transmitted and/or reflected from the sample at the plurality of points to be detected. This has particular application to imaging the structure or composition of a coating on a pharmaceutical tablet.
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公开(公告)号：EP1537636A1
公开(公告)日：2005-06-08
申请号：EP03793904.8
申请日：2003-09-04
申请人： TeraView Limited
发明人： COLE, Bryan Edward,c/o TeraView Limited , EVANS, Michael John,c/o TeraView Limited , CLUFF, Julian Alexanderc/o Tera View Limited
CPC分类号： G01N21/3581 , G01N21/3563 , H01S1/02
摘要： An emitter for emitting radiation in a first range of frequencies comprising: a photoconductive material (11); and first and second contact elements (12, 13, 14) separated by a photoconducting gap provided by said photoconducting material (11), for applying a bias across said photoconducting gap, wherein at least one of said first and second contact elements (12, 13, 14) comprises a resistive element (14) for restricting current flow between said first and second contact elements in a second range of frequencies lower than the first range of frequencies.
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公开(公告)号：EP1352287A2
公开(公告)日：2003-10-15
申请号：EP02732144.7
申请日：2002-01-16
申请人： Teraview Limited
发明人： COLE, Bryan Edward,Teraview Limited , ARNONE, Donald Dominic,Teraview Limited , CLUFF, Julian,Teraview Limited
CPC分类号： G01N21/3581 , G01N21/3563 , G01N21/49 , G01N21/9508 , G02B26/101
摘要： An apparatus for investigating a sample comprising a source of a beam of radiation, a detector for detecting a beam of radiation reflected by or transmitted through a sample to be imaged, an optical subsystem for manipulating the beam between the source and detector and means for translating the optical subsystem along a first translation axis relative to the source and detector to scan the beam across the sample, wherein the source and the detector are on opposite sides of the subsystem and the beam from the source and the beam reflected or transmitted each enter and exit the subsystem in a direction parallel to the first direction of translation. The apparatus is also suitable for maintaining the relative phase of two beams of radiation, during translation of an optical subsystem.
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公开(公告)号：EP3391065A1
公开(公告)日：2018-10-24
申请号：EP16828960.1
申请日：2016-12-16
申请人： Teraview Limited
IPC分类号： G01R31/28 , G01R31/308
CPC分类号： G01R31/2887 , G01R31/308 , G01R35/005
摘要： A test system for testing a device having a plurality of electrical contacts. The test system comprising: a device table operable to hold at least one device under test, a probe comprising at least one probe end for contacting electrical contacts of a device under test, a movement mechanism operable to move one or both of the device table and the probe so as to bring the at least one probe end into contact with at least one electrical contact of a device under test, and a profile determining system configured to determine a profile of the electrical contacts of a device under test.
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公开(公告)号：EP1269156B1
公开(公告)日：2009-09-09
申请号：EP01907935.9
申请日：2001-02-28
申请人： Teraview Limited
CPC分类号： G01N21/4795 , G01N21/3581
摘要： An apparatus and method for imaging a sample, the apparatus comprising: a source for irradiating a sample with a beam of substantially continuous electromagnetic radiation having a frequency in the range 25GHz to 100THz; means for subdividing an area of the sample which is to be imaged into a two dimensional array of pixels; means for detecting radiation from each pixel wherein the detector is configured to detect a phase dependent quantity of the detected radiation which is measured relative to the radiation which irradiates the sample.
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公开(公告)号：EP1581799A1
公开(公告)日：2005-10-05
申请号：EP04701390.9
申请日：2004-01-12
申请人： Teraview Limited
发明人： COLE, Bryan Edward,TeraView Limited , TADAY, Philip Francis,TeraView Limited , FITZGERALD, Anthony J.,TeraView Limited
IPC分类号： G01N21/35
CPC分类号： G01N21/4795 , G01N21/3563 , G01N21/3586 , G01N21/9508
摘要： Imaging techniques of pharmaceutical preparations such as tablets are disclosed. The techniques combine the measurement of reflected/transmitted terahertz radiation originating from within the tablet and data analysis localized in frequency and time in order to enable a three dimensional image indicating composition to be obtained.
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公开(公告)号：EP1356263A2
公开(公告)日：2003-10-29
申请号：EP02716202.3
申请日：2002-01-30
申请人： Teraview Limited
IPC分类号： G01N21/00
CPC分类号： G01N21/3581
摘要： A probe for examining a sample (5), the probe comprising an emitter (1) for emitting radiation, a detector (1) for detecting radiation and a dielectric member (3) configured to direct radiation from the emitter (1) to the sample (5) and to direct radiation reflected by the sample (5) to the detector (1), wherein in use, the dielectric member (3) occupies at least half of the radiation path length from the emitter (1) to the sample (5) to the detector (1).
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