- Email: [email protected]
Benchtop EMC testing techniques for medical equipment
Engineering Information Abstracts (Part I) ŽAuthor abstract . 4 Refs. EI Order Number: 98034111148 Keywords: Antennas; Electromagnetic compatibility; Gain measurement; Antenna radiation; Electromagnetic wave polarization; Calibration; Standards
Title: EMC TESTING ABOVE 1 GHZ Author(s): Herzog, Carl J. Source: EE: Evaluation Engineering v 37 n 2 Feb 1998. A. Vernon Nelson Associates Nokomis FL USA. p 48-50, 52, 54 ISSN: 0149-0370 CODEN: EVENAE Publication Year: 1998 Abstract: One GHz became a commonly encountered upper frequency limit for commercial electromagnetic compatibility ŽEMC. testing of radiated emissions. This was factored into the design of EMC test systems and accessories such as antennas. The FCC has increased the limit and as a result, manufacturers of EMC test equipment must provide efficient testing solutions at higher frequencies. Driving this trend to higher frequency emission testing are two factors: the proliferation of communications equipment above 1 GHz, and the appearance of high-speed digital devices. For performing commercial radiated emissions testing at higher frequencies, broadband antennas are an important step in maintaining an efficient test environment. In English EI Order Number: 98024086340 Keywords: Electromagnetic compatibility; Electronic equipment testing; Electromagnetic wave emission; Antenna arrays; Frequency standards; Bandwidth; Electromagnetic wave interference; Horn antennas; Dipole antennas; Receiving antennas
Title: BENCHTOP EMC TESTING TECHNIQUES FOR MEDICAL EQUIPMENT Author(s): Roleson, Scott Source: Medical Device and Diagnostic Industry v 20 n 1 Jan 1998. Canon Communications Inc Santa Monica CA USA. p 135-138 ISSN: 0194-844X CODEN: MDIIDI Publication Year: 1998 Abstract: A cost-effective approach to medical devices development is to gradually increase confidence in electromagnetic compatibility ŽEMC. performance during design, testing and production phases. Anticipating problems and preparing contingency solutions help keep new product development on schedule. Benchtop EMC techniques using small magnetic field loop probes sacrifice some accuracy for speed but help identify potential EMC problems and cost-effective solutions. In English 4 Refs. EI Order Number: 98024056093 Keywords: Electronic medical equipment; Electromagnetic compatibility; Equipment testing; Cost effectiveness; Magnetic fields; Natural frequencies; Probes; Product design; Spectrum analyzers
Title: EMC MEASUREMENTS FROM CABLES TO MOTOR VEHICLES
483
Author(s): Gerstner, Achim; Hanssler, Ronald Source: Components v 32 n 6 1997. Siemens AG Munich Germany. p 38-41 ISSN: 9173-1735 CODEN: 002455 Publication Year: 1997 Abstract: The CE conformity mark for motor vehicles indicates their compliance with EMC standards. Rohde & Schwarz and Siemens Matsushita Components have developed a joint test center to handle all the measurements involved. It is designed for performing tests on individual ESUs Želectrical subassemblies . as well as on the entire vehicle. In English ŽAuthor abstract . EI Order Number: 98034143926 Keywords: Electromagnetic compatibility; Electromagnetic field measurement; Electromagnetic shielding; Automobile electronic equipment; Standards
Title: TECHNOLOGY FOR MEASURING THE ELECTROMAGNETIC ENVIRONMENT Author(s): Kuramoto, Shoichi; Tominaga, Tetsuya; Kobayashi, Ryuichi Source: NTT R& D v 46 n 12 1997 NTT Tokyo Japan. p 1357-1364 ISSN: 0915-2326 CODEN: NTTDEC Publication Year: 1997 Abstract: This paper describes technology for measuring the electromagnetic environment which is necessary for countermeasures against EMC problems: There are methods for measuring the electric field strength distribution based on sampling data at nonperiodically points, searching for the transmission direction of common-mode interference by measuring its energy, and searching for the grounding route using amplitude and phase difference between injection and observation points. They enable to reduce time for countermeasures against telecommunication equipment malfunction originating from electromagnetic environment. In English ŽTranslated author abstract . 12 Refs. EI Order Number: 98034138229 Keywords: Electromagnetic compatibility; Electromagnetic field measurement; Telecommunication equipment; Electromagnetic wave interference; Electromagnetic wave propagation
Title: APPLICATION OF FD-TD TO THE PREDICTION OF RF RADIATION FROM HEATSINKS Author(s): Ryan, N.J.; Stone, D.A.; Chambers, B. Source: Electronics Letters v 33 n 17 Aug 14 1997. IEE Stevenage Engl. p 1443-1444 ISSN: 0013-5194 CODEN: ELLEAK Publication Year: 1997 Abstract: Owing to their complex geometry, large heatsinks, such as are commonly used in power converters and motor drive systems, may exhibit electromagnetic resonances which enhance RF radiation characteristics within the frequency range covered by current EU EMC regulations. Such effects are investigated using the finite-difference time-domain method and compared with measurements. In English 4 Refs. EI Order Number: 97103895379
Title: EMC TESTING ABOVE 1 GHZ Author(s): Herzog, Carl J. Source: EE: Evaluation Engineering v 37 n 2 Feb 1998. A. Vernon Nelson Associates Nokomis FL USA. p 48-50, 52, 54 ISSN: 0149-0370 CODEN: EVENAE Publication Year: 1998 Abstract: One GHz became a commonly encountered upper frequency limit for commercial electromagnetic compatibility ŽEMC. testing of radiated emissions. This was factored into the design of EMC test systems and accessories such as antennas. The FCC has increased the limit and as a result, manufacturers of EMC test equipment must provide efficient testing solutions at higher frequencies. Driving this trend to higher frequency emission testing are two factors: the proliferation of communications equipment above 1 GHz, and the appearance of high-speed digital devices. For performing commercial radiated emissions testing at higher frequencies, broadband antennas are an important step in maintaining an efficient test environment. In English EI Order Number: 98024086340 Keywords: Electromagnetic compatibility; Electronic equipment testing; Electromagnetic wave emission; Antenna arrays; Frequency standards; Bandwidth; Electromagnetic wave interference; Horn antennas; Dipole antennas; Receiving antennas
Title: BENCHTOP EMC TESTING TECHNIQUES FOR MEDICAL EQUIPMENT Author(s): Roleson, Scott Source: Medical Device and Diagnostic Industry v 20 n 1 Jan 1998. Canon Communications Inc Santa Monica CA USA. p 135-138 ISSN: 0194-844X CODEN: MDIIDI Publication Year: 1998 Abstract: A cost-effective approach to medical devices development is to gradually increase confidence in electromagnetic compatibility ŽEMC. performance during design, testing and production phases. Anticipating problems and preparing contingency solutions help keep new product development on schedule. Benchtop EMC techniques using small magnetic field loop probes sacrifice some accuracy for speed but help identify potential EMC problems and cost-effective solutions. In English 4 Refs. EI Order Number: 98024056093 Keywords: Electronic medical equipment; Electromagnetic compatibility; Equipment testing; Cost effectiveness; Magnetic fields; Natural frequencies; Probes; Product design; Spectrum analyzers
Title: EMC MEASUREMENTS FROM CABLES TO MOTOR VEHICLES
483
Author(s): Gerstner, Achim; Hanssler, Ronald Source: Components v 32 n 6 1997. Siemens AG Munich Germany. p 38-41 ISSN: 9173-1735 CODEN: 002455 Publication Year: 1997 Abstract: The CE conformity mark for motor vehicles indicates their compliance with EMC standards. Rohde & Schwarz and Siemens Matsushita Components have developed a joint test center to handle all the measurements involved. It is designed for performing tests on individual ESUs Želectrical subassemblies . as well as on the entire vehicle. In English ŽAuthor abstract . EI Order Number: 98034143926 Keywords: Electromagnetic compatibility; Electromagnetic field measurement; Electromagnetic shielding; Automobile electronic equipment; Standards
Title: TECHNOLOGY FOR MEASURING THE ELECTROMAGNETIC ENVIRONMENT Author(s): Kuramoto, Shoichi; Tominaga, Tetsuya; Kobayashi, Ryuichi Source: NTT R& D v 46 n 12 1997 NTT Tokyo Japan. p 1357-1364 ISSN: 0915-2326 CODEN: NTTDEC Publication Year: 1997 Abstract: This paper describes technology for measuring the electromagnetic environment which is necessary for countermeasures against EMC problems: There are methods for measuring the electric field strength distribution based on sampling data at nonperiodically points, searching for the transmission direction of common-mode interference by measuring its energy, and searching for the grounding route using amplitude and phase difference between injection and observation points. They enable to reduce time for countermeasures against telecommunication equipment malfunction originating from electromagnetic environment. In English ŽTranslated author abstract . 12 Refs. EI Order Number: 98034138229 Keywords: Electromagnetic compatibility; Electromagnetic field measurement; Telecommunication equipment; Electromagnetic wave interference; Electromagnetic wave propagation
Title: APPLICATION OF FD-TD TO THE PREDICTION OF RF RADIATION FROM HEATSINKS Author(s): Ryan, N.J.; Stone, D.A.; Chambers, B. Source: Electronics Letters v 33 n 17 Aug 14 1997. IEE Stevenage Engl. p 1443-1444 ISSN: 0013-5194 CODEN: ELLEAK Publication Year: 1997 Abstract: Owing to their complex geometry, large heatsinks, such as are commonly used in power converters and motor drive systems, may exhibit electromagnetic resonances which enhance RF radiation characteristics within the frequency range covered by current EU EMC regulations. Such effects are investigated using the finite-difference time-domain method and compared with measurements. In English 4 Refs. EI Order Number: 97103895379