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公开(公告)号：DE4114672A1
公开(公告)日：1992-11-12
申请号：DE4114672
申请日：1991-05-06
Applicant: HOECHST AG
Abstract: An infrared emitter 2 whose surface temperature is held constant during measurement is used to irradiate a measurement region 4 on a material surface with heat with an oblique angle of incidence of the rays. The temperature of the reflected thermal radiation is measured by means of an infrared thermometer 3 which is arranged above the measurement region in such a way that the reflected radiation impinges in the field of view of the infrared thermometer. The overall measurement region of the material surface, which is situated in the field of view of the infrared thermometer, must be irradiated with heat. The measured temperature characteristic of the reflected radiation as a function of the known nature of the surface of the material is stored in a comparator 7. This comparator 7 is fed a desired value for the desired nature of the surface. The infrared temperature of a material surface which is at first unknown with regard to its surface nature is measured and compared with the stored temperature characteristic in order to determine the magnitude of the surface parameter. The value thus obtained is used in conjunction with the desired value fed in to form a difference signal which is fed via the output 8 of the comparator 7 to a control unit 9 of a processing device for the material.
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公开(公告)号：DE4114671A1
公开(公告)日：1992-11-12
申请号：DE4114671
申请日：1991-05-06
Applicant: HOECHST AG
Inventor： SCHMIDT HUGO DIPL PHYS DR , RUCKSZIO MANFRED , HAAS RAIMUND DIPL ING DR , MACKERT WALTER DIPL PHYS
IPC: G01B11/30
Abstract: An infrared emitter 2 whose surface temperature is kept constant during measurement is used to irradiate a measurement region 4 on a roughened material surface with heat with an oblique angle of incidence of the rays. The temperature of the reflected thermal radiation is measured by means of an infrared thermometer 3 which is arranged above the measurement region in such a way that the reflected radiation impinges in the field of view of the infrared thermometer. The overall measurement region of the material surface, which is situated in the field of view of the infrared thermometer, must be irradiated with heat. The measured temperature characteristic of the reflected radiation as a function of the known surface roughness of the material is stored in a comparator 7. This comparator 7 is fed a desired value for the desired surface roughness. The infrared temperature of a material surface which is at first unknown with regard to its surface roughness is measured and compared with the stored temperature characteristic in order to determine the magnitude of the surface roughness. The value thus obtained is used in conjunction with the desired value fed in to form a difference signal which is fed via the output 8 of the comparator 7 to a control unit 9 of a processing device for the material.
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公开(公告)号：DE2933131A1
公开(公告)日：1981-02-26
申请号：DE2933131
申请日：1979-08-16
Applicant: HOECHST AG
Inventor： BECKER REINHOLD DR ING , KINDL ERWIN DR , RUCKSZIO MANFRED , PETRY RUDOLF DIPL ING , KINZLER ULRICH
Abstract: Flexible tubular packaging sheath consists of a cellulose hydrate hose contg. 25-70 wt.% liq., w.r.t. hose wt., and is coated, both externally and internally, with a continuous water vapour-impermeable polymer coating of addn. polymerised aliphatic cpds., contg. ethylenically unsaturated gps. in mol. Each coating copolymer pref. contains predominant amounts, esp. 60-92 wt.% vinylidene chloride and lesser quantities, e.g. 40-8 wt.% of at least 2 co-monomers such as acrylic acid, methacrylic acid, itaconic acid, acrylate and methacrylate ester and acrylonitrile. The packaging sheaths are used as synthetic broiling- or boiling sausage skins. The sausage skin can be filled with sausage compsn. without preliminary moistening and need not be processed immediately. Impermeability is maintained after ageing, e.g. 8 weeks at room temp. or 20 hrs. at 40 deg.C.
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