鐝骇锛?/p>
閫氬伐
1612
濮撳悕锛?/p>
瀛﹀彿锛?/p>
杞欢浠跨湡瀹為獙涓?/p>
妯℃嫙璋冨埗绯荤粺鈥?/p>
DSB
绯荤粺
瀹為獙鐩殑锛?/p>
1
銆佹帉鎻?/p>
DSB
淇″彿鐨勪骇鐢熸柟娉曪紱
2
銆佹帉鎻?/p>
DSB
淇″彿娉㈠舰鍜岄璋辩殑鐗圭偣锛?/p>
3
銆佹帉鎻?/p>
DSB
淇″彿鐨勮В璋冩柟娉曪紱
4
銆佹帉鎻?/p>
DSB
绯荤粺鐨勬姉鍣０鎬ц兘銆?/p>
鐭ヨ瘑瑕佺偣锛?/p>
1
銆?/p>
DSB
淇″彿鐨勪骇鐢熸柟娉曪紱
2
銆?/p>
DSB
淇″彿鐨勬尝褰㈠拰棰戣氨锛?/p>
3
銆?/p>
DSB
淇″彿鐨勮В璋冩柟娉曪紱
4
銆?/p>
DSB
绯荤粺鐨勬姉鍣０鎬ц兘銆?/p>
浠跨湡瑕佹眰锛?/p>
寤鸿鏃堕棿鍙傛暟锛?/p>
No. of Samples = 4096
锛?/p>
Sample Rate = 20000Hz
鍙岃竟璋遍�夋嫨锛?/p>
20Log|FFT|
銆?/p>
dB
銆?/p>
锛?/p>
1
銆佽褰曡皟鍒朵俊鍙蜂笌
DSB
淇″彿鐨勬尝褰㈠拰棰戣氨锛?/p>
璋冨埗淇″彿涓烘寮︿俊鍙凤紝
Amp = 1V
锛?/p>
Freq= 400Hz
锛?/p>
姝ｅ鸡杞芥尝
Amp = 1V
锛?/p>
Freq = 2000Hz
锛?/p>
2
銆侀噰鐢ㄧ浉骞茶В璋冿紝璁板綍鎭㈠淇″彿鐨勬尝褰紱
DSB
妯℃嫙甯﹂�氭护娉㈠櫒
Low Fc = 1500Hz
锛?/p>
Hi Fc = 2500Hz
锛屾瀬鐐逛釜鏁?/p>
6
锛?/p>
鎺ユ敹鏈烘ā鎷熶綆閫氭护娉㈠櫒
Fc = 500Hz
锛屾瀬鐐逛釜鏁?/p>
9
锛?/p>
3
銆佸湪鎺ユ敹鏈烘ā鎷熷甫閫氭护娉㈠櫒鍓嶅姞鍏ラ珮鏂櫧鍣０锛?/p>
寤鸿
Density in 1 ohm = 0.00002W/Hz
锛岃瀵熷苟璁板綍鎭㈠淇″彿娉㈠舰鐨勫彉鍖栵紱
4*
銆佹敼鍙橀珮鏂櫧鍣０鍔熺巼璋卞瘑搴︼紝瑙傚療骞惰褰曟仮澶嶄俊鍙锋尝褰㈢殑鍙樺寲锛?/p>
5*
銆佹敼鍙樿浇娉㈤鐜囷紝瑙傚療骞惰褰?/p>
DSB
淇″彿鐨勨�滃弽鐩哥偣鈥濄�?/p>
飦?/p>
瀹為獙鎶ュ憡瑕佹眰锛?/p>
1
銆佽褰曡皟鍒朵俊鍙蜂笌
DSB
淇″彿鐨勬尝褰㈠拰棰戣氨锛屽垎鏋?/p>
DSB
淇″彿娉㈠舰鍜岄璋辩殑鐗圭偣锛?/p>
2
銆佽褰曟仮澶嶄俊鍙锋尝褰㈢殑鍙樺寲锛屽垎鏋愬櫔澹板鎭㈠淇″彿鐨勫奖鍝嶏紱
3*
銆佽褰?/p>
DSB
淇″彿鐨勨�滃弽鐩哥偣鈥濓紝鍒嗘瀽鐩镐綅璺冲彉鐨勮寰嬨�?/p>