{"id":569,"date":"2017-03-30T11:26:28","date_gmt":"2017-03-30T08:26:28","guid":{"rendered":"https:\/\/stwww1.weizmann.ac.il\/communication\/?p=569"},"modified":"2017-06-14T16:29:55","modified_gmt":"2017-06-14T13:29:55","slug":"%d7%91%d7%90%d7%99%d7%9c%d7%95-%d7%99%d7%97%d7%99%d7%93%d7%95%d7%aa-%d7%9e%d7%a9%d7%aa%d7%9e%d7%a9%d7%99%d7%9d-%d7%9c%d7%9e%d7%93%d7%99%d7%93%d7%aa-%d7%a2%d7%95%d7%a6%d7%9e%d7%aa-%d7%a7%d7%95%d7%9c","status":"publish","type":"post","link":"https:\/\/stwww1.weizmann.ac.il\/communication\/?p=569","title":{"rendered":"\u05d1\u05d0\u05d9\u05dc\u05d5 \u05d9\u05d7\u05d9\u05d3\u05d5\u05ea \u05de\u05e9\u05ea\u05de\u05e9\u05d9\u05dd \u05dc\u05de\u05d3\u05d9\u05d3\u05ea \u05e2\u05d5\u05e6\u05de\u05ea \u05e7\u05d5\u05dc?"},"content":{"rendered":"

\u05d4\u05d0\u05d5\u05d6\u05df \u05d0\u05d9\u05e0\u05d4 \u05e8\u05d2\u05d9\u05e9\u05d4 \u05dc\u05e1\u05da \u05db\u05dc \u05db\u05de\u05d5\u05ea \u05d4\u05d0\u05e0\u05e8\u05d2\u05d9\u05d4 \u05d4\u05de\u05d2\u05d9\u05e2\u05d4 \u05dc\u05e7\u05e8\u05d5\u05dd \u05d4\u05ea\u05d5\u05e3, \u05d0\u05dc\u05d0 \u05dc\u05e7\u05e6\u05d1 \u05d4\u05d2\u05e2\u05ea \u05d4\u05d0\u05e0\u05e8\u05d2\u05d9\u05d4<\/strong><\/span>, \u05db\u05dc\u05d5\u05de\u05e8 \u05dc\u05d4\u05e1\u05e4\u05e7 (\u05d1\u05d9\u05d7\u05d9\u05d3\u05d5\u05ea \u05d5\u05d5\u05d0\u05d8)<\/strong> <\/span>\u05e9\u05dc \u05d4\u05d0\u05d5\u05ea \u05d4\u05d0\u05e7\u05d5\u05e1\u05d8\u05d9<\/strong><\/span>.<\/p>\n

\u05d9\u05d7\u05d9\u05d3\u05ea \u05d4\u05de\u05d3\u05d9\u05d3\u05d4 \u05e9\u05dc \u05d4\u05e1\u05e4\u05e7 \u05dc\u05d9\u05d7\u05d9\u05d3\u05ea \u05e9\u05d8\u05d7<\/span> \u05d4\u05d9\u05d0<\/strong>: \u05d5\u05d5\u05d0\u05d8 \u05dc\u05de\u05d8\u05e8 \u05d1\u05e8\u05d9\u05d1\u05d5\u05e2<\/strong><\/span> [W\/m2<\/sup>]<\/strong>.<\/p>\n

\u05d9\u05d7\u05d9\u05d3\u05ea \u05d4\u05de\u05d3\u05d9\u05d3\u05d4 \u05dc\u05e2\u05d5\u05e6\u05de\u05ea \u05e7\u05d5\u05dc \u2013 \u05d3\u05e6\u05d9\u05d1\u05dc<\/strong><\/span>.<\/p>\n

\u05d9\u05d7\u05d9\u05d3\u05d4 \u05d6\u05d5 \u05e0\u05d5\u05d1\u05e2\u05ea \u05de\u05d4\u05d9\u05d7\u05d9\u05d3\u05d4 \u05e9\u05d4\u05d5\u05d2\u05d3\u05e8\u05d4 \u05d1\u05de\u05e7\u05d5\u05e8 \u05e2\u05dc \u05e9\u05dd \u05de\u05de\u05e6\u05d9\u05d0 \u05d4\u05d8\u05dc\u05e4\u05d5\u05df \u05d0\u05dc\u05db\u05e1\u05e0\u05d3\u05e8 \u05d2\u05e8\u05d4\u05dd \u05d1\u05dc, \u05d5\u05e0\u05e7\u05e8\u05d0\u05d4 "\u05d1\u05dc<\/strong><\/span>". \u05de\u05db\u05d9\u05d5\u05d5\u05df \u05e9\u05d6\u05d5\u05d4\u05d9 \u05d9\u05d7\u05d9\u05d3\u05d4 \u05d2\u05d3\u05d5\u05dc\u05d4, \u05e0\u05d1\u05d7\u05e8\u05d4 \u05e2\u05e9\u05d9\u05e8\u05d9\u05ea \u05de\u05de\u05e0\u05d4 \u05db\u05d9\u05d7\u05d9\u05d3\u05d4 \u05d4\u05de\u05e7\u05d5\u05d1\u05dc\u05ea (\u05d3\u05e6\u05d9<\/strong><\/span> – \u05e2\u05e9\u05d9\u05e8\u05d9\u05ea).
\n\u05e2\u05e7\u05d1 \u05d4\u05ea\u05d7\u05d5\u05dd \u05d4\u05e2\u05e6\u05d5\u05dd \u05e9\u05dc \u05e2\u05d5\u05e6\u05de\u05d5\u05ea \u05e7\u05d5\u05dc \u05d0\u05e4\u05e9\u05e8\u05d9\u05d5\u05ea, \u05e0\u05d1\u05d7\u05e8\u05d4 \u05e1\u05e7\u05dc\u05d4 \u05dc\u05d5\u05d2\u05e8\u05d9\u05ea\u05de\u05d9\u05ea<\/strong><\/span> (\u05dc\u05d0 \u05dc\u05d9\u05e0\u05d0\u05e8\u05d9\u05ea).<\/p>\n

\u05de\u05d3\u05d9\u05d3\u05ea \u05e2\u05d5\u05e6\u05de\u05ea \u05e7\u05d5\u05dc \u05d4\u05d9\u05d0 \u05de\u05d3\u05d9\u05d3\u05d4 \u05d9\u05d7\u05e1\u05d9\u05ea \u05d4\u05de\u05e9\u05d5\u05d5\u05d4 \u05d1\u05d9\u05df \u05e9\u05ea\u05d9 \u05e2\u05d5\u05e6\u05de\u05d5\u05ea (Pin<\/sub>, Pout<\/sub>)<\/strong><\/span>\u00a0.<\/p>\n

\u05d1\u05d0\u05d5\u05e4\u05df \u05de\u05ea\u05de\u05d8\u05d9 \u05d9\u05d7\u05d9\u05d3\u05ea \u05d4\u05d3\u05e6\u05d9\u05d1\u05dc<\/span> \u05de\u05d5\u05d2\u05d3\u05e8\u05ea<\/strong>:<\/p>\n

dB = 10*log10<\/sub> (Pin<\/sub>\/Po<\/sub>)<\/strong><\/span><\/p>\n

\u05d4\u05d0\u05d5\u05ea P \u05de\u05e6\u05d9\u05d9\u05e0\u05ea \u05d4\u05e1\u05e4\u05e7.<\/strong><\/span><\/p>\n

\u05db\u05dc \u05d4\u05db\u05e4\u05dc\u05ea \u05e2\u05d5\u05e6\u05de\u05d4 \u05e4\u05d9 2 \u05de\u05ea\u05d1\u05d8\u05d0\u05ea \u05d1\u05ea\u05d5\u05e1\u05e4\u05ea \u05e9\u05dc 3 \u05d3\u05e6\u05d9\u05d1\u05dc\u05d9\u05dd.<\/strong><\/span><\/p>\n

\u05d4\u05db\u05e4\u05dc\u05ea \u05d4\u05e2\u05d5\u05e6\u05de\u05d4 \u05e4\u05d9 10 \u05e4\u05d9\u05e8\u05d5\u05e9\u05d4 \u05ea\u05d5\u05e1\u05e4\u05ea \u05e9\u05dc 10 \u05d3\u05e6\u05d9\u05d1\u05dc\u05d9\u05dd.<\/strong><\/span>
\n\u05d1\u05d8\u05d1\u05dc\u05d4 \u05d4\u05d1\u05d0\u05d4 \u05de\u05e4\u05d5\u05e8\u05d8\u05d9\u05dd \u05d9\u05d7\u05e1\u05d9 \u05d4\u05e2\u05d5\u05e6\u05de\u05d5\u05ea \u05dc\u05e2\u05d5\u05de\u05ea \u05e2\u05e8\u05db\u05d9 \u05d4\u05d3\u05e6\u05d9\u05d1\u05dc \u05d4\u05de\u05ea\u05d0\u05d9\u05de\u05d9\u05dd:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00a0\u05d9\u05d7\u05e1 \u05e2\u05d5\u05e6\u05de\u05d5\u05ea<\/span><\/strong><\/th>\n\u00a0\u05d4\u05e4\u05e8\u05e9 \u05d3\u05d9\u05e6\u05d1\u05dc\u05d9\u05dd<\/span><\/strong><\/th>\n<\/tr>\n
\u00a00.01<\/td>\n\u00a020-<\/td>\n<\/tr>\n
\u00a0 0.10<\/td>\n\u00a0 \u00a010.0-<\/td>\n<\/tr>\n
\u00a0 0.25<\/td>\n\u00a06.0-<\/td>\n<\/tr>\n
\u00a0 0.30<\/td>\n\u00a05.2-<\/td>\n<\/tr>\n
\u00a0 0.40<\/td>\n\u00a0 4.0-<\/td>\n<\/tr>\n
\u00a0 0.50<\/td>\n\u00a0 3.0-<\/td>\n<\/tr>\n
\u00a0 0.60<\/td>\n\u00a0 2.2-<\/td>\n<\/tr>\n
\u00a0 0.70<\/td>\n\u00a0 1.5-<\/td>\n<\/tr>\n
\u00a0 0.80<\/td>\n\u00a01.0-<\/td>\n<\/tr>\n
\u00a0 0.90<\/td>\n\u00a0 0.5-<\/td>\n<\/tr>\n
\u00a0 1.00<\/td>\n\u00a00.0<\/td>\n<\/tr>\n
\u00a0 1.26<\/td>\n\u00a01.0<\/td>\n<\/tr>\n
2.00<\/td>\n\u00a03.0<\/td>\n<\/tr>\n
\u00a03.00<\/td>\n\u00a04.8<\/td>\n<\/tr>\n
\u00a03.16<\/td>\n\u00a05.0<\/td>\n<\/tr>\n
\u00a04.00<\/td>\n6.0<\/td>\n<\/tr>\n
\u00a05.00<\/td>\n\u00a07.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00a0\u05d9\u05d7\u05e1 \u05e2\u05d5\u05e6\u05de\u05d5\u05ea<\/span><\/strong><\/th>\n\u00a0\u05d4\u05e4\u05e8\u05e9 \u05d3\u05d9\u05e6\u05d1\u05dc\u05d9\u05dd<\/span><\/strong><\/th>\n<\/tr>\n
6.00<\/td>\n7.8<\/td>\n<\/tr>\n
6.30<\/td>\n8.0<\/td>\n<\/tr>\n
7.00<\/td>\n8.5<\/td>\n<\/tr>\n
8.00<\/td>\n9.0<\/td>\n<\/tr>\n
9.00<\/td>\n9.5<\/td>\n<\/tr>\n
\u00a0 10.00<\/td>\n\u00a0 10.0<\/td>\n<\/tr>\n
\u00a0\u00a012.59<\/td>\n\u00a011.0<\/td>\n<\/tr>\n
\u00a0 15.85<\/td>\n\u00a012.0<\/td>\n<\/tr>\n
\u00a0 20.00<\/td>\n\u00a013.0<\/td>\n<\/tr>\n
\u00a0 30.00<\/td>\n\u00a014.8<\/td>\n<\/tr>\n
\u00a0 40.00<\/td>\n\u00a016.0<\/td>\n<\/tr>\n
\u00a0 50.00<\/td>\n\u00a017.0<\/td>\n<\/tr>\n
\u00a0 60.00<\/td>\n\u00a017.8<\/td>\n<\/tr>\n
\u00a0 70.00<\/td>\n\u00a018.5<\/td>\n<\/tr>\n
\u00a0 80.00<\/td>\n\u00a019.0<\/td>\n<\/tr>\n
\u00a0 90.00<\/td>\n\u00a019.5<\/td>\n<\/tr>\n
\u00a0 \u00a0 100.00<\/td>\n\u00a020.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u05d9\u05d7\u05d9\u05d3\u05ea \u05de\u05d3\u05d9\u05d3\u05ea \u05e2\u05d5\u05e6\u05de\u05ea \u05e7\u05d5\u05dc \u05d1\u05d0\u05d5\u05d6\u05df \u05d4\u05d0\u05d3\u05dd<\/strong><\/span> dBA<\/strong><\/span> \u05de\u05d5\u05e1\u05d1\u05e8\u05ea \u05d1\u05e2\u05de\u05d5\u05d3 \u05d4\u05d1\u05d0.<\/p>\n

 <\/p>\n

\"\u05dc\u05e2\u05de\u05d5\u05d3<\/a>\"\u05dc\u05e2\u05de\u05d5\u05d3<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u05d4\u05d0\u05d5\u05d6\u05df \u05d0\u05d9\u05e0\u05d4 \u05e8\u05d2\u05d9\u05e9\u05d4 \u05dc\u05e1\u05da \u05db\u05dc \u05db\u05de\u05d5\u05ea \u05d4\u05d0\u05e0\u05e8\u05d2\u05d9\u05d4 \u05d4\u05de\u05d2\u05d9\u05e2\u05d4 \u05dc\u05e7\u05e8\u05d5\u05dd \u05d4\u05ea\u05d5\u05e3, \u05d0\u05dc\u05d0 \u05dc\u05e7\u05e6\u05d1 \u05d4\u05d2\u05e2\u05ea \u05d4\u05d0\u05e0\u05e8\u05d2\u05d9\u05d4, \u05db\u05dc\u05d5\u05de\u05e8 \u05dc\u05d4\u05e1\u05e4\u05e7 (\u05d1\u05d9\u05d7\u05d9\u05d3\u05d5\u05ea \u05d5\u05d5\u05d0\u05d8) \u05e9\u05dc \u05d4\u05d0\u05d5\u05ea \u05d4\u05d0\u05e7\u05d5\u05e1\u05d8\u05d9. \u05d9\u05d7\u05d9\u05d3\u05ea \u05d4\u05de\u05d3\u05d9\u05d3\u05d4 \u05e9\u05dc \u05d4\u05e1\u05e4\u05e7 \u05dc\u05d9\u05d7\u05d9\u05d3\u05ea \u05e9\u05d8\u05d7 \u05d4\u05d9\u05d0: \u05d5\u05d5\u05d0\u05d8 \u05dc\u05de\u05d8\u05e8 \u05d1\u05e8\u05d9\u05d1\u05d5\u05e2 [W\/m2]. \u05d9\u05d7\u05d9\u05d3\u05ea \u05d4\u05de\u05d3\u05d9\u05d3\u05d4 \u05dc\u05e2\u05d5\u05e6\u05de\u05ea \u05e7\u05d5\u05dc \u2013 \u05d3\u05e6\u05d9\u05d1\u05dc. \u05d9\u05d7\u05d9\u05d3\u05d4 \u05d6\u05d5 … \u05dc\u05d4\u05de\u05e9\u05da \u05e7\u05e8\u05d9\u05d0\u05d4 ←<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[19],"tags":[],"class_list":["post-569","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=\/wp\/v2\/posts\/569"}],"collection":[{"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=569"}],"version-history":[{"count":6,"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=\/wp\/v2\/posts\/569\/revisions"}],"predecessor-version":[{"id":2196,"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=\/wp\/v2\/posts\/569\/revisions\/2196"}],"wp:attachment":[{"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/communication\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}