-PAGE2-國家計(jì)量技術(shù)規(guī)范《探測（測量）線圈校準(zhǔn)規(guī)范》試驗(yàn)報(bào)告《探測（測量）線圈校準(zhǔn)規(guī)范》編制工作組2025年8月

一、試驗(yàn)?zāi)康囊罁?jù)《探測（測量）線圈校準(zhǔn)規(guī)范》中第6條所列的校準(zhǔn)項(xiàng)目和校準(zhǔn)方法，對探測（測量）線圈進(jìn)行校準(zhǔn)，通過對試驗(yàn)數(shù)據(jù)的計(jì)算和分析，驗(yàn)證該校準(zhǔn)規(guī)范的正確性和可行性。試驗(yàn)項(xiàng)目依據(jù)《探測（測量）線圈校準(zhǔn)規(guī)范》中規(guī)定的校準(zhǔn)項(xiàng)目來確定試驗(yàn)項(xiàng)目，詳見表1。表1試驗(yàn)項(xiàng)目序號校準(zhǔn)項(xiàng)目校準(zhǔn)方法條款1線圈常數(shù)6.2.2試驗(yàn)方法依據(jù)《探測（測量）線圈校準(zhǔn)規(guī)范》中規(guī)定的三種校準(zhǔn)方法進(jìn)行試驗(yàn)，具體的試驗(yàn)方法見表2。表2試驗(yàn)方法校準(zhǔn)項(xiàng)目試驗(yàn)方法線圈常數(shù)沖擊法抽拉法低頻交流法試驗(yàn)設(shè)備本次試驗(yàn)使用的測量標(biāo)準(zhǔn)及其他設(shè)備見表3。表3本次試驗(yàn)使用的測量標(biāo)準(zhǔn)及其他設(shè)備測量標(biāo)準(zhǔn)及其他設(shè)備型號規(guī)格儀器編號螺線管SL1200YP151009-192磁通計(jì)LakeShore480LSB1DM直流電源648LSA13GX電磁鐵SG-220YP150130-21磁強(qiáng)計(jì)PT20253670直流電源IPA110-10LAB0000A06數(shù)字多用表134465AMY54500886數(shù)字多用表234410AMY47027795頻率計(jì)53220AMY58140133交流電源6813BMY41001852分流器TH0400-10A05155846試驗(yàn)對象試驗(yàn)對象相關(guān)信息見表4。表4試驗(yàn)對象相關(guān)信息名稱型號編號生產(chǎn)廠家檢定結(jié)果探測（測量）線圈圓型01中國測試技術(shù)研究院827.6cm2探測（測量）線圈//中國計(jì)量科學(xué)研究院8330cm2試驗(yàn)結(jié)果外觀及工作正常性檢查：正常線圈常數(shù)2.1沖擊法沖擊法校準(zhǔn)電路如圖1所示。圖1沖擊法校準(zhǔn)電路沖擊法試驗(yàn)過程如圖2所示。圖2沖擊法試驗(yàn)過程沖擊法試驗(yàn)數(shù)據(jù)如表5和表6所示，試驗(yàn)條件為溫度：22℃，濕度：59%RH。表5線圈常數(shù)為827.6cm2的探測（測量）線圈沖擊法試驗(yàn)數(shù)據(jù)電壓(V)線圈常數(shù)(mT/V)標(biāo)準(zhǔn)磁場(mT)磁通計(jì)示值（mWb）接通或切斷電源線圈常數(shù)(cm2)0.7830127.7199.9978.2581接通電源825.810.7830127.7199.9978.2583825.830.7830127.7199.9978.2576825.760.7830127.7199.9978.2582825.820.7830127.7199.9978.2584825.840.7830127.7199.9978.2587825.870.7830127.7199.9978.2585825.850.7830127.7199.9978.2599825.990.7830127.7199.9978.2593825.930.7830127.7199.9978.2593825.930.7830127.7199.9978.2630斷開電源826.300.7830127.7199.9978.2617826.170.7830127.7199.9978.2628826.280.7830127.7199.9978.2630826.300.7830127.7199.9978.2632826.320.7830127.7199.9978.2629826.290.7830127.7199.9978.2624826.240.7830127.7199.9978.2633826.330.7830127.7199.9978.2631826.310.7830127.7199.9978.2634826.340.3916127.7150.0114.130接通電源826.00.3916127.7150.0114.130826.00.3916127.7150.0114.131826.20.3916127.7150.0114.130826.00.3916127.7150.0114.129825.80.3916127.7150.0114.131826.20.3916127.7150.0114.130826.00.3916127.7150.0114.130826.00.3916127.7150.0114.129825.80.3916127.7150.0114.130826.00.3916127.7150.0114.133斷開電源826.60.3916127.7150.0114.133826.60.3916127.7150.0114.133826.60.3916127.7150.0114.132826.40.3916127.7150.0114.133826.60.3916127.7150.0114.133826.60.3916127.7150.0114.133826.60.3916127.7150.0114.133826.60.3916127.7150.0114.133826.60.3916127.7150.0114.133826.6表6線圈常數(shù)為8330cm2的探測（測量）線圈沖擊法試驗(yàn)數(shù)據(jù)電壓(V)線圈常數(shù)(mT/V)標(biāo)準(zhǔn)磁場(mT)磁通計(jì)示值（mWb）接通或切斷電源線圈常數(shù)(cm2)0.7830127.7199.99783.25接通電源83250.7830127.7199.99783.2583250.7830127.7199.99783.2583250.7830127.7199.99783.2583250.7830127.7199.99783.2583250.7830127.7199.99783.2683260.7830127.7199.99783.2583250.7830127.7199.99783.2583250.7830127.7199.99783.2583250.7830127.7199.99783.2583250.7830127.7199.99783.27斷開電源83270.7830127.7199.99783.2783270.7830127.7199.99783.2783270.7830127.7199.99783.2783270.7830127.7199.99783.2783270.7830127.7199.99783.2783270.7830127.7199.99783.2783270.7830127.7199.99783.2783270.7830127.7199.99783.2783270.7830127.7199.99783.2783270.3916127.7150.01141.63接通電源83240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.63斷開電源83240.3916127.7150.01141.6383240.3916127.7150.01141.6383240.3916127.7150.01141.6483260.3916127.7150.01141.6483260.3916127.7150.01141.6483260.3916127.7150.01141.6483260.3916127.7150.01141.6483260.3916127.7150.01141.6383240.3916127.7150.01141.648326試驗(yàn)結(jié)論：1、驗(yàn)證了沖擊法校準(zhǔn)探測（測量）線圈的可行性；2、采用斷開電源的方式進(jìn)行沖擊法試驗(yàn)得到的探測（測量）線圈常數(shù)試驗(yàn)數(shù)據(jù)更接近探測（測量）線圈的實(shí)際校準(zhǔn)數(shù)據(jù)；3、在較大的磁場中測得的探測（測量）線圈常數(shù)試驗(yàn)數(shù)據(jù)比較小的磁場中數(shù)據(jù)更接近探測（測量）線圈的實(shí)際校準(zhǔn)數(shù)據(jù)。2.2抽拉法抽拉法校準(zhǔn)電路如圖3所示。圖3抽拉法校準(zhǔn)電路抽拉法試驗(yàn)過程如圖4所示。圖4抽拉法試驗(yàn)過程抽拉法試驗(yàn)數(shù)據(jù)如表7和表8所示，試驗(yàn)條件為溫度：20℃，濕度：52%RH。表7線圈常數(shù)為827.6cm2的探測（測量）線圈抽拉法試驗(yàn)數(shù)據(jù)標(biāo)準(zhǔn)磁場（mT）磁通計(jì)示值（mWb）線圈常數(shù)(cm2)100082.70827.082.70827.082.70827.082.70827.082.72827.282.72827.282.72827.282.72827.282.72827.282.72827.250041.33826.641.33826.641.33826.641.33826.641.33826.641.33826.641.33826.641.33826.641.33826.641.33826.6表8線圈常數(shù)為8330cm2的探測（測量）線圈抽拉法試驗(yàn)數(shù)據(jù)標(biāo)準(zhǔn)磁場（mT）磁通計(jì)示值（mWb）探測（測量）線圈常數(shù)(cm2)300249.98330.0250.08333.3249.98330.0250.28340.0250.38343.3250.28340.0250.18336.7250.28340.0249.98330.0250.08333.3試驗(yàn)結(jié)論：1、驗(yàn)證了抽拉法校準(zhǔn)探測（測量）線圈的可行性；2、在較大的磁場中測得的探測（測量）線圈常數(shù)試驗(yàn)數(shù)據(jù)比較小的磁場中數(shù)據(jù)更接近探測（測量）線圈的實(shí)際校準(zhǔn)數(shù)據(jù)。2.3低頻交流法低頻交流法校準(zhǔn)電路如圖5所示。圖5低頻交流法校準(zhǔn)電路低頻交流法試驗(yàn)過程如圖6所示。圖6低頻交流法試驗(yàn)過程低頻交流法試驗(yàn)數(shù)據(jù)如表9所示，試驗(yàn)條件為溫度：22℃，濕度：48%RH。表9線圈常數(shù)為827.6cm2的探測（測量）線圈低頻交流法試驗(yàn)數(shù)據(jù)標(biāo)準(zhǔn)電阻的電壓有效值U1（V）探測（測量）線圈的感應(yīng)電壓有效值U2（V）分流器電分流器阻值R（Ω）螺線管常數(shù)或磁場線圈常數(shù)K（mT/A）電流的頻頻率f（Hz）線圈常數(shù)KSN（cm250.00933.2400.1127.7110828.3450.00833.2470.1127.7110828.5350.00233.2490.1127.7110828.6850.00033.2300.1127.7110828.2450.00033.2390.1127.7110828.4650.00033.2350.1127.7110828.3649.99633.2450.1127.7110828.6850.00133.23