{"id":4088,"date":"2025-04-21T15:12:24","date_gmt":"2025-04-21T07:12:24","guid":{"rendered":"http:\/\/www.efsea.com\/?post_type=dt_portfolio&p=4088"},"modified":"2025-05-07T12:02:43","modified_gmt":"2025-05-07T04:02:43","slug":"dsh-vlf%e8%88%aa%e7%a9%ba%e7%94%9a%e4%bd%8e%e9%a2%91%e7%b3%bb%e7%bb%9f","status":"publish","type":"dt_portfolio","link":"http:\/\/www.efsea.com\/?dt_portfolio=dsh-vlf%e8%88%aa%e7%a9%ba%e7%94%9a%e4%bd%8e%e9%a2%91%e7%b3%bb%e7%bb%9f","title":{"rendered":"DSH-VLF\u822a\u7a7a\u751a\u4f4e\u9891\u7cfb\u7edf"},"content":{"rendered":"\n

\u673a\u8f7d VLF \u7cfb\u7edf\u662f\u7528\u4e8e\u73af\u5883\u548c\u52d8\u63a2\u76ee\u7684\u7684\u51fa\u8272\u6d4b\u7ed8\u5de5\u5177\u3002\u6211\u4eec\u63d0\u4f9b\u4e0e GPS \u5b8c\u5168\u96c6\u6210\u7684\u7cfb\u7edf\uff0c\u5e76\u901a\u8fc7 VLF-EM \u63d0\u4f9b\u989d\u5916\u7684\u52d8\u6d4b\u80fd\u529b\uff0c\u4ee5\u5b9e\u73b0\u4fbf\u5229\u6027\u548c\u9ad8\u751f\u4ea7\u7387\u3002<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

\u6280\u672f\u5353\u8d8a<\/p>\n\n\n\n

\u8be5VLF\u7cfb\u7edf\u53ef\u5728VLF15 – 30kHz \u9891\u7387\u8303\u56f4\u5185\uff0c\u5bf9\u5782\u76f4\u540c\u76f8\u548c\u975e\u540c\u76f8\u5206\u91cf\uff08\u5360\u603b\u78c1\u573a\u7684\u767e\u5206\u6bd4\uff09\u8fdb\u884c\u771f\u6b63\u7684\u6d4b\u91cf\u3002\u8bb8\u591a\u8001\u5f0f\u7cfb\u7edf\u53ea\u80fd\u6d4b\u91cf\u603b\u78c1\u573a\u548c\u6b63\u4ea4\u5206\u91cf\u3002\u673a\u8f7d\u7cfb\u7edf\u6709\u4e24\u4e2a 3 \u7ebf\u5708\u4f20\u611f\u5668\uff0c\u53ef\u4ece\u4e24\u4e2a\u751a\u4f4e\u9891\u53d1\u5c04\u7ad9\u83b7\u53d6\u6570\u636e\u3002\u540c\u65f6\u4ece 2 \u4e2a\u751a\u4f4e\u9891\u53d1\u5c04\u7ad9\u83b7\u53d6\u6570\u636e\uff0c\u800c\u4e0d\u53d7\u4f20\u611f\u5668\u65b9\u5411\u7684\u7684\u5f71\u54cd\u3002\u6570\u636e\u5305\u62ec\u540c\u76f8\u3001\u5f02\u76f8\u3001X \u548c Y \u65b9\u5411\u7684\u6c34\u5e73\u5206\u91cf\u4ee5\u53ca X \u548c Y \u65b9\u5411\u7684\u573a\u5f3a\u3002\u6570\u636e\u5305\u62ec\u540c\u76f8\u3001\u975e\u540c\u76f8\u3001X \u548c Y \u6c34\u5e73\u5206\u91cf\u4ee5\u53ca\u4ee5\u76ae\u7279\u65af\u62c9\uff08pT\uff09\u3002<\/p>\n\n\n\n

\"\"
2 \u4e2a\u72ec\u7acb\u7684\u4f20\u611f\u5668\u5404\u914d\u6709
3 \u4e2a\u8f7b\u578b\u6b63\u4ea4\u7a7a\u6c14\u7ebf\u5708\uff0c<\/strong>
\u53ef\u964d\u4f4e\u566a\u97f3\uff0c\u5e76\u53ef\u540c\u65f6\u4ece
2 \u4e2a\u7ad9\u70b9\u5feb\u901f\u6536\u96c6\u771f\u6b63\u7684\u540c\u76f8\u548c\u6b63\u4ea4\u6570\u636e<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

DSH- \u751a\u4f4e\u9891\u7cfb\u7edf\u8fd8\u53ef\u5bf9VLF\u4f20\u611f\u5668\u7684\u503e\u659c\u5ea6\u8fdb\u884c\u6821\u6b63\uff0c\u6700\u5927\u53ef\u504f\u79bb\u6c34\u5e73\u9762 25\u00b0\u3002<\/p>\n\n\n\n

\"\"
\u8f7b\u5de7\u7684\u72ec\u7acb\u7cfb\u7edf\u4fbf\u4e8e\u5b89\u88c5\uff0c\u53ef\u6d4b\u91cf\u771f\u6b63\u7684\u540c\u76f8\u548c\u6b63\u4ea4\u751a\u4f4e\u9891<\/strong>\u6570\u636e<\/figcaption><\/figure><\/div>\n\n\n\n

VLF \u7406\u8bba<\/p>\n\n\n\n

VLF-EM \u52d8\u6d4b\u65b9\u6cd5\u662f\u4e00\u79cd\u88ab\u52a8\u7535\u78c1\u7cfb\u7edf\uff0c\u5229\u7528\u9065\u8fdc\u7684\u3001\u5168\u7403\u5b9a\u4f4d\u7684\u53d1\u5c04\u673a\uff0c\u4ee5 15kHz \u81f3 30kHz \u7684\u9891\u7387\u8fdb\u884c\u5e7f\u64ad\u3002(\u5728\u751a\u4f4e\u9891\u52d8\u6d4b\u4e2d\uff0c\u6d4b\u91cf\u53d7\u5f53\u5730\u5730\u5c42\u6761\u4ef6\u5f71\u54cd\u7684\u53d1\u5c04\u4fe1\u53f7\u7684\u78c1\u573a\u6210\u5206\u3002<\/p>\n\n\n\n

\"\"
\u5168\u7403
VLF \u9891\u7387\u53d1\u5c04\u7ad9<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

\u5e94\u7528\u5f88\u591a\uff1b<\/p>\n\n\n\n

– \u7535\u963b\u7387\u6210\u50cf\u548c\u57fa\u5ca9\u7ed8\u56fe<\/p>\n\n\n\n

– \u5212\u5206\u6df1\u5c42\u5bfc\u7535\u7387\u5bf9\u6bd4<\/p>\n\n\n\n

– \u7ed8\u5236\u5730\u8d28\u63a5\u89e6\u3001\u65ad\u5c42\u56fe<\/p>\n\n\n\n

– \u5bfb\u627e\u77ff\u5316\u4f53<\/p>\n\n\n\n

– \u6c34\u52d8\u63a2<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

DSH\/ – VLF\u7535\u963b\u7387\u6cd5\u8f6f\u4ef6<\/p>\n\n\n\n

DSH \u4f7f\u7528VLF \u8f6f\u4ef6\u5e73\u53f0\uff0c\u8be5\u7a0b\u5e8f\u63d0\u4f9b\u591a\u9891\u7387 VLF-EM \u6570\u636e\u7684\u4e8c\u7ef4\u53cd\u6f14\u3002<\/p>\n\n\n\n

\u8f6f\u4ef6\u5305\u62ec\u4e00\u4e2a\u5730\u56fe\u6a21\u5757\uff0c\u7528\u4e8e\u663e\u793a\u52d8\u6d4b\u7ed3\u679c\u3001\u9009\u62e9\u53cd\u6f14\u5256\u9762\u5e76\u663e\u793a\u52d8\u6d4b\u7ed3\u679c\u3002\u8be5\u7a0b\u5e8f\u8fd8\u53ef\u7528\u4e8e\u5efa\u6a21\u7814\u7a76\u3002\u7528\u6237\u53ef\u4ee5\u5efa\u7acb\u590d\u6742\u7684\u7535\u963b\u7387\u6a21\u578b\uff0c\u5e76\u8ba1\u7b97\u5176 VLF-EM \u54cd\u5e94\u3002\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n\n\n\n

– \u4e8c\u7ef4\u7535\u963b\u7387\u5256\u9762<\/p>\n\n\n\n

– \u7535\u963b\u7387\u6df1\u5ea6\u5e73\u9762\u5207\u7247<\/p>\n\n\n\n

– \u6b63\u6f14\u5efa\u6a21<\/p>\n\n\n\n

– Fraser \u6ee4\u6ce2\u5668<\/p>\n\n\n\n

– Karous-Hjelt \u6ee4\u6ce2\u5668\uff08\u7535\u6d41\u5bc6\u5ea6\u5256\u9762\uff09<\/p>\n\n\n\n

\"\"
VLF \u4e8c\u7ef4\u53cd\u6f14\u8f6f\u4ef6\u754c\u9762<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

\u4e3a\u4ec0\u4e48\u4f7f\u7528 VLF<\/p>\n\n\n\n

\u81ea 1964 \u5e74\u4ee5\u6765\uff0cVLF\u52d8\u6d4b\u4e00\u76f4\u4f5c\u4e3a\u4e00\u79cd\u5feb\u901f\u65b9\u6cd5\u7528\u4e8e\u5bfb\u627e\u5927\u578b\u7ebf\u6027\u5bfc\u7535\u7279\u5f81\uff0c\u4e3a\u5730\u8d28\u5236\u56fe\u63d0\u4f9b\u5730\u4e0b\u4fe1\u606f\u3002\u5927\u9762\u79ef\u52d8\u6d4b\u63d0\u4f9b\u4e86\u533a\u57df\u7ed3\u6784\u4fe1\u606f\uff0c\u4f46\u7531\u4e8e\u7f3a\u4e4f\u5b9a\u91cf\u4fe1\u606f\uff08\u5982\u7ed3\u6784\u6df1\u5ea6\u4fe1\u606f\uff09\uff0c\u8fd9\u79cd\u65b9\u6cd5\u76f4\u5230\u6700\u8fd1\u624d\u88ab\u91cd\u65b0\u91cd\u89c6\u5e94\u7528\u30022007 \u5e74\uff0c\u745e\u5178\u5730\u8d28\u8c03\u67e5\u5c40\u8bc1\u660e\uff0cVLF \u6570\u636e\u4e0d\u4ec5\u53ef\u4ee5\u5feb\u901f\u6709\u6548\u5730\u6536\u96c6\uff0c\u800c\u4e14\u53ef\u4ee5\u63d0\u4f9b\u6df1\u5ea6\u8fbe 100 \u7c73\uff08\u7406\u8bba\u4e0a\u8d85\u8fc7 200 \u7c73\uff09\u7684\u6781\u4f73\u7ed3\u6784\u548c\u7535\u963b\u7387\u4fe1\u606f\uff08\u53c2\u8003\u6587\u732e\uff1aL. Pedersen\uff0c2007 \u5e74\uff0c\u745e\u5178\u5730\u9762\u4f20\u5bfc\u6027\u7684\u673a\u8f7d VLF \u6d4b\u91cf\u548c\u7ed8\u56fe\uff09\u3002<\/p>\n\n\n\n

\u751a\u4f4e\u9891\u6570\u636e\u6280\u672f\u7684\u8fdb\u6b65\u4ee5\u53ca\u8ba1\u7b97\u673a\u6280\u672f\u548c\u6570\u5b66\u53cd\u6f14\u6280\u672f\u7684\u8fdb\u6b65\uff0c\u4e3a\u4e1a\u754c\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b0\u7684\u6210\u672c\u4f4e\u3001\u6548\u76ca\u9ad8\u7684\u65b9\u6cd5\uff0c\u7528\u4e8e\u5bf9\u5730\u7403\u8868\u9762\u6df1\u5ea6100 \u7c73\u5185\u8fdb\u884c\u6210\u50cf\u3002<\/p>\n\n\n\n

\u575a\u56fa\u8010\u7528\u7684 DSH\u591a\u9891\u7387 VLF \u7cfb\u7edf\u4e3a\u7528\u6237\u63d0\u4f9b\u4e86\u4e00\u79cd\u5b9e\u7528\u7684\u65b9\u6cd5\uff0c\u4ee5\u975e\u5e38\u7ecf\u6d4e\u6709\u6548\u7684\u65b9\u5f0f\u6536\u96c6\u6709\u610f\u4e49\u7684\u7535\u963b\u7387\u4fe1\u606f\u3002\u6b64\u5916\uff0cVLF \u7cfb\u7edf\u8fd8\u53ef\u4e0e DSH \u78c1\u529b\u4eea\u8f7b\u677e\u7ed3\u5408\uff0c\u4ee5\u6df1\u5165\u4e86\u89e3\u5730\u4e0b\u60c5\u51b5\u3002<\/p>\n\n\n\n

VLF \u9891\u7387\u572815 \u548c 30.0 kHz \u9891\u7387\u8303\u56f4\u5185\u540c\u65f6\u8bfb\u53d6 2 \u4e2a\u7528\u6237\u9009\u62e9\u7684\u7ad9\u70b9\u3002<\/p>\n\n\n\n

\u53c2\u6570<\/strong><\/strong><\/p>\n\n\n\n

\u5782\u76f4\u540c\u76f8\u548c\u975e\u540c\u76f8\u5206\u91cf\u5360\u603b\u573a\u5f3a\u7684\u767e\u5206\u6bd4\u30022 \u4e2a\u5206\u91cf\u6c34\u5e73\u573a\u632f\u5e45\u548c\u4ee5 pT \u4e3a\u5355\u4f4d\u7684\u603b\u573a\u5f3a<\/p>\n\n\n\n

\u5206\u8fa8\u7387<\/strong><\/strong><\/p>\n\n\n\n

\u5bf9\u4e8e 5 pT \u6216\u66f4\u5f3a\u7684\u751a\u4f4e\u9891\u573a\uff0c\u4e3a\u603b\u573a\u7684 0.1%<\/p>\n\n\n\n

\u503e\u659c\u6821\u6b63<\/strong><\/strong><\/p>\n\n\n\n

+\/- 25 \u5ea6\u6c34\u5e73<\/p>\n\n\n\n

\u6027\u80fd<\/strong><\/strong><\/p>\n\n\n\n

\u5de5\u4f5c\u6e29\u5ea6\uff1a-40\u00b0C \u81f3 +50\u00b0C<\/p>\n\n\n\n

\u5c3a\u5bf8<\/strong><\/strong><\/p>\n\n\n\n

\u4f20\u611f\u5668\uff1a14 x 15 x 11 cm<\/p>\n\n\n\n

\u63a7\u5236\u53f0\uff1a22.3 x 6.9 cm x 2.4 cm<\/p>\n\n\n\n

\u91cd\u91cf<\/strong><\/strong><\/p>\n\n\n\n

\u4f20\u611f\u5668\uff1a1.0 kg<\/p>\n\n\n\n

\u63a7\u5236\u53f0\uff1a2.1 kg<\/p>\n\n\n\n

\u62d6\u66f3\u9e1f\uff1a2.1 kg<\/p>\n\n\n\n

\u7535\u6e90 <\/strong><\/strong><\/p>\n\n\n\n

\u5916\u7f6e 22-32V\uff0c18 Ah @24V<\/p>\n\n\n\n

12V \u7528\u4e8e VLF \u63a7\u5236\u53f0<\/p>\n\n\n\n

\u5b58\u50a8<\/strong><\/strong><\/p>\n\n\n\n

\u81ea\u52a8\u5b58\u50a8\uff1a\u65f6\u95f4\u3001\u5750\u6807\u3001\u659c\u7387\u3001\u7535\u78c1\u573a\u3001\u9891\u7387\u3001\u540c\u76f8\u548c\u5f02\u76f8\u5782\u76f4\u5206\u91cf\uff0c\u4ee5\u53ca\u6bcf\u4e2a\u9009\u5b9a\u6d4b\u7ad9\u7684\u4e24\u4e2a\u6c34\u5e73\u5206\u91cf<\/p>\n\n\n\n

\u91c7\u6837\u548c\u6570\u636e\u8f93\u51fa<\/strong><\/strong><\/p>\n\n\n\n

10\u30015\u30012\u30011 Hz\uff0c\u5e26 RS-232 \u8f93\u51fa<\/p>\n\n\n\n

\u4ee5\u6807\u51c6 XYZ\uff08\u5373\u9762\u5411\u7ebf\uff09\u683c\u5f0f\u5bfc\u51fa\u6570\u636e<\/p>\n\n\n\n

\u683c\u5f0f\uff0c\u4fbf\u4e8e\u5728\u6807\u51c6\u5546\u4e1a\u8f6f\u4ef6\u7a0b\u5e8f\u4e2d\u4f7f\u7528<\/p>\n\n\n\n

\u9009\u4ef6<\/strong><\/strong><\/p>\n\n\n\n

VLF\u5904\u7406\u8f6f\u4ef6<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u673a\u8f7d VLF \u7cfb\u7edf\u662f\u7528\u4e8e\u73af\u5883\u548c\u52d8\u63a2\u76ee\u7684\u7684\u51fa\u8272\u6d4b\u7ed8\u5de5\u5177\u3002\u6211\u4eec\u63d0\u4f9b\u4e0e GPS \u5b8c\u5168\u96c6\u6210\u7684\u7cfb\u7edf\uff0c\u5e76\u901a\u8fc7 VLF-EM…<\/p>\n","protected":false},"author":1,"featured_media":4095,"comment_status":"open","ping_status":"closed","template":"","dt_portfolio_category":[29,49],"dt_portfolio_tags":[],"_links":{"self":[{"href":"http:\/\/www.efsea.com\/index.php?rest_route=\/wp\/v2\/dt_portfolio\/4088"}],"collection":[{"href":"http:\/\/www.efsea.com\/index.php?rest_route=\/wp\/v2\/dt_portfolio"}],"about":[{"href":"http:\/\/www.efsea.com\/index.php?rest_route=\/wp\/v2\/types\/dt_portfolio"}],"author":[{"embeddable":true,"href":"http:\/\/www.efsea.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.efsea.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4088"}],"version-history":[{"count":3,"href":"http:\/\/www.efsea.com\/index.php?rest_route=\/wp\/v2\/dt_portfolio\/4088\/revisions"}],"predecessor-version":[{"id":4171,"href":"http:\/\/www.efsea.com\/index.php?rest_route=\/wp\/v2\/dt_portfolio\/4088\/revisions\/4171"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.efsea.com\/index.php?rest_route=\/wp\/v2\/media\/4095"}],"wp:attachment":[{"href":"http:\/\/www.efsea.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4088"}],"wp:term":[{"taxonomy":"dt_portfolio_category","embeddable":true,"href":"http:\/\/www.efsea.com\/index.php?rest_route=%2Fwp%2Fv2%2Fdt_portfolio_category&post=4088"},{"taxonomy":"dt_portfolio_tags","embeddable":true,"href":"http:\/\/www.efsea.com\/index.php?rest_route=%2Fwp%2Fv2%2Fdt_portfolio_tags&post=4088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}