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揚州高壓(ya)電(dian)(dian)(dian)力試(shi)驗(yan)儀器(qi)(qi)設備通(tong)(tong)過調節(jie)調頻控制(zhi)器(qi)(qi)的輸出頻率，使(shi)(shi)得回路(lu)中的電(dian)(dian)(dian)抗器(qi)(qi)的電(dian)(dian)(dian)感L和(he)試(shi)品電(dian)(dian)(dian)容(rong)C發生諧振，諧振電(dian)(dian)(dian)壓(ya)即為試(shi)品上(shang)所(suo)加電(dian)(dian)(dian)壓(ya)。通(tong)(tong)過調頻控制(zhi)器(qi)(qi)提供(gong)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)源，試(shi)驗(yan)電(dian)(dian)(dian)壓(ya)由勵磁變壓(ya)器(qi)(qi)經過初(chu)步升壓(ya)后(hou)，使(shi)(shi)高電(dian)(dian)(dian)壓(ya)加在(zai)電(dian)(dian)(dian)抗器(qi)(qi)L和(he)被試(shi)品CX上(shang)，通(tong)(tong)過改(gai)變調頻控制(zhi)器(qi)(qi)的輸出頻率，使(shi)(shi)回路(lu)處(chu)于串聯諧振狀態；