{"id":2558,"date":"2025-06-19T19:36:57","date_gmt":"2025-06-19T11:36:57","guid":{"rendered":"https:\/\/www.ledphotometer.com\/blog\/lcr-meter-with-dc-bias-current-source\/"},"modified":"2025-07-01T16:26:26","modified_gmt":"2025-07-01T08:26:26","slug":"lcr-meter-with-dc-bias-current-source","status":"publish","type":"post","link":"https:\/\/www.ledphotometer.com\/ru\/%d0%bf%d1%80%d0%be%d0%b4%d1%83%d0%ba%d1%82%d1%8b\/lcr-meter-with-dc-bias-current-source\/","title":{"rendered":"LCR Meter with DC Bias Current Source"},"content":{"rendered":"<p>LS1373\/LS1379 is an LCR meter with a DC bias current source. The current resolution is as low as 0.25mA. It can analyze the characteristics of the magnetic core in the inductor for quality inspection or product characteristic analysis. The built-in bias source has lower noise and more flexible control. The built-in comparator facilitates the establishment of an automated production line for inductor detection.<\/p>\n<p><strong>\u0421\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f:<\/strong><\/p>\n<table style=\"width: 99.8658%; height: 1360px;\" width=\"476\">\n<tbody>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\"><strong>\u041c\u043e\u0434\u0435\u043b\u044c LISUN<\/strong><\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 18.8594%;\" width=\"72\"><strong>LS1373X<\/strong><\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 17.7576%;\" width=\"72\"><strong>LS1373CX<\/strong><\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 18.4056%;\" width=\"72\"><strong>LS1379MX<\/strong><\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 17.4984%;\" width=\"116\"><strong>LS1379CMX<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Current range<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 36.617%;\" colspan=\"2\" width=\"144\">0~12A<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 35.904%;\" colspan=\"2\" width=\"188\">0~25A<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 102px; text-align: center; vertical-align: middle; width: 12.7025%;\" rowspan=\"3\" width=\"72\">\u0422\u0435\u043a\u0443\u0449\u0438\u0439<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0mA~1.000A\/1.000A~5.000A\/5.000A~25.00A<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">Step<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0.25mA\/1.25mA\/6.25mA<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">Sweep adjustment time<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 36.617%;\" colspan=\"2\" width=\"144\">4ms~3600s<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 18.4056%;\" width=\"72\">10ms~3600s<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 17.4984%;\" width=\"116\">20ms~3600s<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Continuous loading maximum current time<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Conservative 2~3h, uninterrupted output<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Maximum output voltage<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">11V<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Maximum allowable DC resistance<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Rmax=Vmax\/I (\u03a9) (Refer to the user manual for calculation of Rmax)<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Maximum allowable inductance<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Lmax=Vmax\/(di\/dt) (mH) (Refer to the user manual for calculation of Lmax)<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Test frequency<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 18.8594%;\" width=\"72\">50Hz~200kHz<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 17.7576%;\" width=\"72\">50Hz~1MHz<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 18.4056%;\" width=\"72\">50Hz~200kHz<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 17.4984%;\" width=\"116\">50Hz~1MHz<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 68px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" rowspan=\"2\" width=\"144\">Test parameter<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">C, L, X, B, R, G, D, Q, ESR, Rp, \u03b8,<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">|Z|, |Y|, P<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Test level<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">10mV-2Vrms<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">\u0411\u0430\u0437\u043e\u0432\u0430\u044f \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0.05%<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Test speed<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Fast speed 50 times\/second, medium speed 20 times\/second, slow speed 6 times\/second<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 340px; text-align: center; vertical-align: middle; width: 12.7025%;\" rowspan=\"10\" width=\"72\">Display<br \/>\n\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">|Z|,\u00a0 R, X<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0.01 m\u03a9 \uff5e 99.9999M\u03a9<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">|Y|, G, B<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0,00001 \u043c\u043a\u0421\u043c \uff5e 99,9999 \u0421<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">C<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0,00001 \u043f\u0424\uff5e9,99999 \u0424<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">D<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0,00001\u20139,99999<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">DCR<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0.01m\u03a9\uff5e99.9999M\u03a9<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">L<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0,00001 \u043c\u043a\u0413\u043d \uff5e 99999,9\u0413\u043d<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">Q<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0.01\uff5e99999.9<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">\u03b8(RAD)<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">-3.14159\uff5e3.14159<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">\u03b8(DEG)<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">-179.999\u00b0\uff5e179.999\u00b0<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">\u0394%<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">-99.999%\uff5e99.999%<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Signal source output impedance<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">30\u03a9, 100\u03a9, 1062X<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">\u0420\u0435\u0436\u0438\u043c \u0434\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">\u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0440\u0435\u0436\u0438\u043c \u0438 \u0443\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Start and stop control mode<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">START\/STOP Physical button, 4 kinds of foot control, bus<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">\u0424\u0443\u043d\u043a\u0446\u0438\u044f \u043a\u0430\u043b\u0438\u0431\u0440\u043e\u0432\u043a\u0438<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Open\/short circuit, full frequency clearing, dot frequency clearing<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">\u042d\u043a\u0432\u0438\u0432\u0430\u043b\u0435\u043d\u0442\u043d\u0430\u044f \u0441\u0445\u0435\u043c\u0430<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">\u041f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0438 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e\u0435<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 68px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" rowspan=\"2\" width=\"144\">\u041a\u043e\u043c\u043f\u0430\u0440\u0430\u0442\u043e\u0440<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Three-gear sorting, BIN0\uff5eBIN2<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">PASS, HI, LOW(PASS\/FAIL LED display)<\/td>\n<\/tr>\n<tr style=\"height: 68px;\">\n<td style=\"height: 68px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">\u0424\u0443\u043d\u043a\u0446\u0438\u0438<\/td>\n<td style=\"height: 68px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Instrument fault self-test; 99 groups of custom file management;<br \/>\nDouble progress bar indicator;<br \/>\nBilingual in Chinese and English;<br \/>\nSlave soft switch;<br \/>\nReal-time operation;<br \/>\nSCPI instruction set;<br \/>\nSimple double display calculator, etc<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Port<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">RS232C, UsbHost, USB Device, Handler<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 68px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" rowspan=\"2\" width=\"144\">\u0420\u0430\u0431\u043e\u0447\u0430\u044f \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u044c<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Voltage: 100~120V AC\/198~242V AC<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Frequency: 46~64 Hz; Power&gt;50 VA<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Working environment<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">0\u2103~40\u2103, Relative humidity\u226475%<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">Volume (W*H*D)<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 36.617%;\" colspan=\"2\" width=\"144\">465mm*395mm*135mm<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 35.904%;\" colspan=\"2\" width=\"188\">465mm*430mm*178mm<\/td>\n<\/tr>\n<tr style=\"height: 34px;\">\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 26.8308%;\" colspan=\"2\" width=\"144\">\u0412\u0435\u0441 \u043d\u0435\u0442\u0442\u043e<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 36.617%;\" colspan=\"2\" width=\"144\">9.9Kg<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 35.904%;\" colspan=\"2\" width=\"188\">19Kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>LS1373\/LS1379 is an LCR meter with a DC bias current source. The current resolution is as low as 0.25mA. It can analyze the characteristics of the magnetic core in the inductor for quality inspection or product characteristic analysis. The built-in bias source has lower noise and more flexible control. The built-in comparator facilitates the establishment [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5183,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[311],"class_list":["post-2558","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-ls1373x"],"_links":{"self":[{"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/posts\/2558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/comments?post=2558"}],"version-history":[{"count":0,"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/posts\/2558\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/media\/5183"}],"wp:attachment":[{"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/media?parent=2558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/categories?post=2558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ru\/wp-json\/wp\/v2\/tags?post=2558"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}