LEADER 02142nam 2200373 450 001 9910135516703321 005 20231208090738.0 010 $a0-7381-3944-0 035 $a(CKB)3780000000092922 035 $a(NjHacI)993780000000092922 035 $a(EXLCZ)993780000000092922 100 $a20231208d1983 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aIEEE Std 291-1991 /$fInstitute of Electrical and Electronics Engineers 210 1$a[Place of publication not identified] :$cIEEE,$d1983. 215 $a1 online resource (25 pages) 330 $aTwo standard methods for field-strength measurement are described. The standard-antenna method consists of measuring the received power or open-circuit voltage developed in a standard receiving antenna by the field to be measured and computing the field strength from the measured voltage and the dimensions and form of the standard antenna. The standard-field method consists of comparing voltages produced in an antenna by the field to be measured and by a standard field, the magnitude of which is computed from the dimensions of the transmitting antenna, its current distribution, the distance of separation, and effect of the ground. The measurement procedures are outlined, including calibration of commercial field strength and extension of the methods to microwave frequencies. Methods for measuring power radiated from an antenna under several different conditions are briefly presented, and the important considerations for securing useful and accurate measurements are described. 517 $aIEEE Std 323-1983: IEEE Standard for Qualifying Class 1E Equipment for Nuclear Power Generating Stations 517 $aIEEE Std 323-1983 606 $aBiocompatible Materials 606 $aBiomedical materials 615 0$aBiocompatible Materials. 615 0$aBiomedical materials. 676 $a610.28 801 0$bNjHacI 801 1$bNjHacl 906 $aDOCUMENT 912 $a9910135516703321 996 $aIEEE Std 291-1991$92574389 997 $aUNINA