{"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\/ja\/%e8%a3%bd%e5%93%81\/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>\u4ed5\u69d8\uff1a<\/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>LISUN\u30e2\u30c7\u30eb<\/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\">\u73fe\u5728<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 14.1283%;\" width=\"72\">\u7bc4\u56f2<\/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\">Basic accuracy<\/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\u7bc4\u56f2<\/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\u03bcS\uff5e99.9999S<\/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\">0.00001pF\uff5e9.99999F<\/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\uff5e9.99999<\/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\u03bcH\uff5e99999.9H<\/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\">Range mode<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Automatic and hold<\/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\">Calibration function<\/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\">Equivalent circuit<\/td>\n<td style=\"height: 34px; text-align: center; vertical-align: middle; width: 72.521%;\" colspan=\"4\" width=\"332\">Series and parallel<\/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\">Comparator<\/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\">Features<\/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\">\u4f5c\u696d\u30d1\u30ef\u30fc<\/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\">Net weight<\/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 of an automated production line for inductor detection. Specification: LISUN Model LS1373X LS1373CX LS1379MX LS1379CMX Current range 0~12A 0~25A Current Range 0mA~1.000A\/1.000A~5.000A\/5.000A~25.00A Step 0.25mA\/1.25mA\/6.25mA Sweep adjustment time 4ms~3600s 10ms~3600s 20ms~3600s Continuous loading maximum current time Conservative 2~3h, uninterrupted output Maximum output voltage 11V Maximum allowable DC resistance Rmax=Vmax\/I (\u03a9) (Refer to the user manual for [&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\/ja\/wp-json\/wp\/v2\/posts\/2558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/comments?post=2558"}],"version-history":[{"count":0,"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/posts\/2558\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/media\/5183"}],"wp:attachment":[{"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/media?parent=2558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/categories?post=2558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ledphotometer.com\/ja\/wp-json\/wp\/v2\/tags?post=2558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}