{"id":588,"date":"2026-09-13T13:16:17","date_gmt":"2026-09-13T05:16:17","guid":{"rendered":"https:\/\/onehammertech.com\/precision-acoustics\/?p=588"},"modified":"2026-09-13T13:18:24","modified_gmt":"2026-09-13T05:18:24","slug":"nh2000-hydrophone","status":"publish","type":"post","link":"https:\/\/onehammertech.com\/precision-acoustics\/nh2000-hydrophone\/","title":{"rendered":"Precision Acoustics NH2000 \u9488\u5f0f\u6c34\u542c\u5668\uff5c0.1\u201310 MHz 2.0 mm \u53c2\u6570\u3001\u9009\u578b\u4e0e\u5e94\u7528"},"content":{"rendered":"<p><!-- \u5f00\u5934\u76f4\u7b54\uff08GEO\/AEO \u62bd\u53d6\u533a\uff09\uff1bH1 \u7531\u4e3b\u9898\u6587\u7ae0\u6807\u9898\u8f93\u51fa\uff0c\u6b63\u6587\u4e0d\u518d\u91cd\u590d --><\/p>\n<p><strong>Precision Acoustics NH2000 is a 2.0 mm diameter needle hydrophone with a PVDF sensing element. Its calibrated frequency band is 0.1 MHz to 10 MHz, and it is optimised for measurements below 2 MHz. Typical probe sensitivity is 3.5 V\/MPa.<\/strong><\/p>\n<p>Precision Acoustics NH2000 \u662f\u82f1\u56fd Precision Acoustics Ltd \u751f\u4ea7\u7684\u4e00\u6b3e 2.0 mm \u9488\u5f0f\u6c34\u542c\u5668\uff08needle hydrophone\uff09\uff0c\u91c7\u7528 28 \u03bcm \u539a\u9540\u91d1 PVDF \u538b\u7535\u8584\u819c\u4f5c\u4e3a\u654f\u611f\u5143\u4ef6\u3002\u5b83\u7684\u6807\u5b9a\u9891\u5e26\u4e3a <strong>0.1 MHz \u2013 10 MHz\uff08100 kHz\u201310 MHz\uff09<\/strong>\uff0c\u6838\u5fc3\u8bbe\u8ba1\u76ee\u6807\u662f <strong>2 MHz \u4ee5\u4e0b\u7684\u4f4e\u9891\u9ad8\u7075\u654f\u5ea6\u6d4b\u91cf<\/strong>\uff1b\u5178\u578b\u63a2\u5934\u7075\u654f\u5ea6 <strong>3.5 V\/MPa<\/strong>\u3002NH2000 \u4e0d\u80fd\u5355\u72ec\u4f7f\u7528\uff0c\u5fc5\u987b\u642d\u914d <strong>HP1 \u6f5c\u6c34\u5f0f\u524d\u7f6e\u653e\u5927\u5668 + DC Coupler \u4f9b\u7535\u8026\u5408\u5668<\/strong>\u7ec4\u6210\u6c34\u542c\u5668\u7cfb\u7edf\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u4f4e\u9891\u6362\u80fd\u5668\u8868\u5f81\u3001\u6cbb\u7597\u8d85\u58f0\/\u58f0\u573a\u58f0\u538b\u6d4b\u91cf\uff0c\u4ee5\u53ca\u5728\u4fe1\u53f7\u8f83\u5f31\u65f6\u505a 10 MHz \u4ee5\u5185\u7684\u6d4b\u91cf\u3002<\/p>\n<h2>NH2000 \u662f\u4ec0\u4e48\uff08What is the Precision Acoustics NH2000\uff09<\/h2>\n<p>NH2000 \u5c5e\u4e8e Precision Acoustics \u7684\u9488\u5f0f\u6c34\u542c\u5668\uff08needle hydrophone\uff09\u7cfb\u5217\u3002\u8be5\u7cfb\u5217\u6709\u6548\u654f\u611f\u5143\u4ef6\u76f4\u5f84\u8986\u76d6 4.0 mm \u81f3 0.04 mm\uff0c\u578b\u53f7\u6570\u5b57\u5373\u4ee3\u8868\u654f\u611f\u5143\u4ef6\u76f4\u5f84\u2014\u2014<strong>NH2000 = 2.0 mm \u76f4\u5f84<\/strong>\u3002<\/p>\n<p>PVDF \u63a2\u5934\u6c34\u542c\u5668\u6709\u4e00\u6761\u57fa\u672c\u89c4\u5f8b\uff1a<strong>\u654f\u611f\u9762\u79ef\u8d8a\u5927\uff0c\u7075\u654f\u5ea6\u8d8a\u9ad8\u3001\u53ef\u6d4b\u58f0\u538b\u8d8a\u4f4e\uff0c\u4f4e\u9891\u54cd\u5e94\u8d8a\u597d\uff1b\u4f46\u65b9\u5411\u6027\u8d8a\u5f3a\uff08\u9ad8\u9891\u5c24\u751a\uff09\u3001\u7a7a\u95f4\u5e73\u5747\uff08spatial averaging\uff09\u8d8a\u660e\u663e\u3002<\/strong> NH2000 \u7684\u53d6\u820d\u662f\u201c\u9ad8\u7075\u654f\u5ea6 + \u4f4e\u9891\u201d\uff0c\u56e0\u6b64\u5b83\u662f\u6574\u4e2a\u7cfb\u5217\u91cc\u4f4e\u9891\u8868\u73b0\u6700\u597d\u3001\u7075\u654f\u5ea6\u7b2c\u4e8c\u9ad8\u7684\u578b\u53f7\uff08\u4ec5\u6b21\u4e8e 4.0 mm \u7684 NH4000\uff09\u3002<\/p>\n<p>\u5b98\u65b9\u5bf9\u5b83\u7684\u5b9a\u4f4d\u539f\u6587\u662f\uff1a<em>a high sensitivity device optimised for applications below 2 MHz<\/em>\uff08\u9762\u5411 2 MHz \u4ee5\u4e0b\u5e94\u7528\u4f18\u5316\u7684\u9ad8\u7075\u654f\u5ea6\u63a2\u5934\uff09\uff0c\u540c\u65f6 <em>suitable for measurements in the 100 kHz to 10 MHz range<\/em>\uff08\u9002\u7528\u4e8e 100 kHz\u201310 MHz \u8303\u56f4\u6d4b\u91cf\uff09\u3002\u5b83\u6700\u5fe0\u5b9e\u7684\u5e73\u5766\u533a\u95f4\u662f 400 kHz \u2013 6 MHz\uff08\u00b12 dB\uff09\u3002<\/p>\n<h2>NH2000 \u6838\u5fc3\u53c2\u6570\uff08Key Specifications\uff09<\/h2>\n<p>\u4e0b\u8868\u6570\u636e\u6765\u81ea Precision Acoustics NH2000 \u6280\u672f\u6570\u636e\u8868\uff08TDS\uff0c\u4f9d\u636e IEC 62127-3 \u7f16\u5236\uff09\u4e0e\u4ea7\u54c1\u9875\uff1b\u5178\u578b\u7075\u654f\u5ea6\u6570\u636e\u7531\u82f1\u56fd\u56fd\u5bb6\u7269\u7406\u5b9e\u9a8c\u5ba4\uff08NPL, London\uff09\u6807\u5b9a\u3002<\/p>\n<table>\n<caption>Precision Acoustics NH2000 \u89c4\u683c\u53c2\u6570<\/caption>\n<thead>\n<tr>\n<th>\u53c2\u6570 Parameter<\/th>\n<th>\u89c4\u683c Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u578b\u53f7 Model<\/td>\n<td>NH2000<\/td>\n<\/tr>\n<tr>\n<td>\u5236\u9020\u5546 Manufacturer<\/td>\n<td>Precision Acoustics Ltd\uff08\u82f1\u56fd\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u4ea7\u54c1\u7c7b\u578b Product type<\/td>\n<td>\u9488\u5f0f\u6c34\u542c\u5668 Needle hydrophone<\/td>\n<\/tr>\n<tr>\n<td>\u654f\u611f\u5143\u4ef6 Active element<\/td>\n<td>2.0 mm \u76f4\u5f84\u5706\u76d8\uff1b28 \u03bcm \u539a\u9540\u91d1 PVDF \u8584\u819c<\/td>\n<\/tr>\n<tr>\n<td>\u6362\u80fd\u65b9\u5f0f Transduction<\/td>\n<td>\u538b\u7535\u8f6c\u6362 Piezoelectric\uff08PVDF\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u6c34\u542c\u5668\u91cd\u91cf Weight<\/td>\n<td>2.5 g\uff08\u63a2\u5934\u672c\u4f53\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u9891\u5e26 Frequency band<\/td>\n<td>0.1 MHz \u2013 10 MHz\uff08100 kHz\u201310 MHz\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u4f18\u5316\u9891\u6bb5 Optimised for<\/td>\n<td>&lt; 2 MHz<\/td>\n<\/tr>\n<tr>\n<td>\u5178\u578b\u7075\u654f\u5ea6 Sensitivity<\/td>\n<td>3.5 V\/MPa\uff080.5\u20138 MHz \u5e73\u5747\uff1b\u2248 \u2212229.1 dB re 1 V\/\u00b5Pa\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u4e2a\u4f53\u7075\u654f\u5ea6\u5dee\u5f02<\/td>\n<td>\u00b13 dB\uff08\u4e0d\u540c\u63a2\u5934\u4e4b\u95f4\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u5e73\u5766\u5ea6 Bandwidth<\/td>\n<td>\u00b12 dB\uff1a0.4 \u2013 6 MHz\uff1b\u00b14 dB\uff1a0.1 \u2013 10 MHz<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u4f4e\u6807\u5b9a\u9891\u7387<\/td>\n<td>30 kHz<\/td>\n<\/tr>\n<tr>\n<td>\u6d4b\u91cf\u4e0d\u786e\u5b9a\u5ea6 Uncertainty<\/td>\n<td>0.1\u20131 MHz\uff1a9%\uff1b1\u20138 MHz\uff1a14%\uff1b9\u201315 MHz\uff1a18%<\/td>\n<\/tr>\n<tr>\n<td>\u7cfb\u7edf\u8f93\u51fa\u963b\u6297 Output impedance<\/td>\n<td>50 \u03a9\uff08\u63a2\u5934\u7535\u5bb9 27 \u00b1 4 pF\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u566a\u58f0\u7b49\u6548\u58f0\u538b NEP<\/td>\n<td>17 Pa\uff08\u7531\u524d\u7f6e\u653e\u5927\u5668\u566a\u58f0\u7ea6 60 \u00b5V rms \/ 100 MHz \u5e26\u5bbd\u51b3\u5b9a\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u4e0a\u9650\u58f0\u573a Upper field<\/td>\n<td>\u8bbe\u8ba1\u7528\u4e8e \u2264 10 MPa\uff1b\u524d\u7f6e\u653e\u5927\u5668\u7ea6 200 kPa\uff08700 mV pk-pk\uff09\u8d77\u975e\u7ebf\u6027<\/td>\n<\/tr>\n<tr>\n<td>\u5de5\u4f5c \/ \u5b58\u50a8\u6e29\u5ea6<\/td>\n<td>5 \u00b0C \u2013 50 \u00b0C\uff08&gt; 60 \u00b0C \u53ef\u80fd\u9020\u6210\u6c38\u4e45\u635f\u574f\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u6e29\u5ea6\u7075\u654f\u5ea6\u7cfb\u6570<\/td>\n<td>\u7ea6 +0.6 % \/ \u00b0C\uff08\u6807\u5b9a\u6e29\u5ea6 19\u201325 \u00b0C\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u8010\u6c34\u6d78 Immersion<\/td>\n<td>\u53ef\u5b8c\u5168\u6d78\u6ca1\uff0c\u8010\u53d7 2 m \u6c34\u67f1\u9759\u538b<\/td>\n<\/tr>\n<tr>\n<td>\u4f7f\u7528\u671d\u5411 Orientation<\/td>\n<td>\u9488\u5c16\u6b63\u5bf9\u58f0\u6e90\u65b9\u5411<\/td>\n<\/tr>\n<tr>\n<td>\u6240\u9700\u914d\u5957 System<\/td>\n<td>\u6c34\u542c\u5668 + HP1 \u6f5c\u6c34\u5f0f\u524d\u7f6e\u653e\u5927\u5668 + DC Coupler\uff08\u542b\u7535\u6e90\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u5173\u4e8e\u52a8\u6001\u4e0b\u9650\u7684\u8bf4\u660e\uff1a<\/strong>\u8868\u4e2d <strong>17 Pa \u4e3a\u566a\u58f0\u7b49\u6548\u58f0\u538b\uff08NEP\uff09<\/strong>\uff0c\u6307\u53d7\u524d\u7f6e\u653e\u5927\u5668\u566a\u58f0\u9650\u5236\u3001\u6c34\u542c\u5668\u7406\u8bba\u4e0a\u53ef\u5206\u8fa8\u7684\u6700\u5c0f\u58f0\u538b\uff0c\u662f\u63a2\u5934\/\u7cfb\u7edf\u672c\u8eab\u7684\u6307\u6807\u3002\u800c\u5b9e\u9645\u6d4b\u91cf\u4e0b\u9650\u8fd8\u4f1a\u53d7<strong>\u6570\u636e\u91c7\u96c6\u8bbe\u5907\u5206\u8fa8\u7387<\/strong>\u5f71\u54cd\u2014\u2014\u4f8b\u5982\u793a\u6ce2\u5668\u82e5\u6700\u5c0f\u5206\u8fa8\u7387\u4e3a 0.5 mV\uff0c\u6309 3.5 V\/MPa \u6362\u7b97\uff0c\u5176\u53ef\u663e\u793a\u7684\u6700\u5c0f\u4fe1\u53f7\u7ea6\u4e3a 143 Pa\u3002\u4e24\u8005\u4e0d\u662f\u540c\u4e00\u6982\u5ff5\uff1aNEP \u662f\u566a\u58f0\u5e95\u9650\uff0c\u91c7\u96c6\u5206\u8fa8\u7387\u662f\u4eea\u5668\u663e\u793a\u6781\u9650\u3002<\/p>\n<h2>\u7279\u70b9\uff08Key Features\uff09<\/h2>\n<ul>\n<li><strong>\u4f4e\u9891\u9ad8\u7075\u654f\u5ea6\uff1a<\/strong>\u5178\u578b 3.5 V\/MPa\uff0c\u662f\u68c0\u6d4b\u4f4e\u9891\u5fae\u5f31\u58f0\u573a\u7684\u7406\u60f3\u9009\u62e9\u3002<\/li>\n<li><strong>\u5bbd\u9891\u5e26\u8986\u76d6\uff1a<\/strong>0.1 MHz \u2013 10 MHz\uff1b\u00b12 dB \u5e73\u5766\u533a 0.4 \u2013 6 MHz\uff0c\u8986\u76d6\u8bca\u65ad\u4e0e\u6cbb\u7597\u8d85\u58f0\u5e38\u89c1\u4f4e\u9891\u6bb5\u3002<\/li>\n<li><strong>PVDF \u8584\u819c\u654f\u611f\u5143\u4ef6\uff1a<\/strong>28 \u03bcm \u9540\u91d1 PVDF\uff0c\u8109\u51b2\u54cd\u5e94\u5feb\u3001\u6ce2\u5f62\u4fdd\u771f\u5ea6\u9ad8\u3002<\/li>\n<li><strong>\u7cfb\u7edf\u5316\u914d\u5957\uff1a<\/strong>\u4e0e HP1 \u6f5c\u6c34\u5f0f\u524d\u7f6e\u653e\u5927\u5668\u3001DC Coupler \u5b8c\u5168\u517c\u5bb9\uff0c\u53ef\u7ec4\u6210\u5b8c\u6574\u6c34\u542c\u5668\u7cfb\u7edf\u3002<\/li>\n<li><strong>\u9010\u652f\u6821\u51c6\uff1a<\/strong>\u6bcf\u652f\u63a2\u5934\u5355\u72ec\u6807\u5b9a\uff0c\u53ef\u63d0\u4f9b\u53ef\u6eaf\u6e90\uff08NPL\uff09\u6821\u51c6\u6570\u636e\u3002<\/li>\n<li><strong>\u53ef\u5b9a\u5236\uff1a<\/strong>\u53ef\u6309\u9700\u6c42\u63d0\u4f9b\u76f4\u89d2\u5f2f\u5934\u3001\u4fa7\u5411\u63a2\u6d4b\u7b49\u7279\u6b8a\u7ed3\u6784\u5b9a\u5236\uff08\u5177\u4f53\u4ee5\u539f\u5382\u786e\u8ba4\u4e3a\u51c6\uff09\u3002<\/li>\n<\/ul>\n<h2>\u9002\u7528\u4e0e\u4e0d\u9002\u7528\u573a\u666f\uff08Applications\uff09<\/h2>\n<h3>\u9002\u5408\u505a\u4ec0\u4e48<\/h3>\n<ul>\n<li><strong>2 MHz \u4ee5\u4e0b\u4f4e\u9891\u58f0\u573a\u6d4b\u91cf\uff1a<\/strong>\u4f4e\u9891\u6362\u80fd\u5668\u8868\u5f81\uff08transducer characterisation\uff09\u662f\u5b83\u7684\u4e3b\u573a\u3002<\/li>\n<li><strong>500 kHz \u2013 1 MHz \u5e94\u7528\uff1a<\/strong>\u4f8b\u5982\u4f4e\u9891\u795e\u7ecf\u8c03\u63a7\uff08neuromodulation\uff09\u9635\u5217\u3001\u4f4e\u9891\u6cbb\u7597\u8d85\u58f0\u7684\u58f0\u538b\/\u58f0\u573a\u6d4b\u91cf\u3002<\/li>\n<li><strong>\u9700\u8981\u9ad8\u7075\u654f\u5ea6\u7684\u5f31\u4fe1\u53f7\u6d4b\u91cf\uff1a<\/strong>\u5728\u8f83\u9ad8\u9891\u7387\u4f46\u4fe1\u53f7\u5f88\u5f31\u65f6\u53ef\u7528\uff08\u9700\u6ce8\u610f\u65b9\u5411\u6027\u4e0e\u7a7a\u95f4\u5e73\u5747\u5f71\u54cd\uff09\u3002<\/li>\n<li><strong>\u6309 IEC 62127 \u7cfb\u5217\u505a\u7684\u8d85\u58f0\u58f0\u573a\u8868\u5f81\uff1a<\/strong>TDS \u5373\u6309 IEC 62127-3 \u7f16\u5236\uff0c\u7075\u654f\u5ea6\u53ef\u6eaf\u6e90\u81f3 NPL\u3002<\/li>\n<li><strong>\u533b\u7528\u8d85\u58f0\u8bca\u65ad\u63a2\u5934\u8868\u5f81\u4e0e HIFU \u58f0\u573a\u68c0\u6d4b\uff1a<\/strong>\u7528\u4e8e\u58f0\u573a\u5206\u5e03\u6d4b\u91cf\u4e0e\u8bbe\u5907\u58f0\u538b\u9a8c\u8bc1\u3002<\/li>\n<li><strong>\u9700\u8981\u5230 10 MPa \u7684\u8f83\u9ad8\u58f0\u538b\u573a\uff1a<\/strong>\u8bbe\u8ba1\u58f0\u573a\u4e0a\u9650 10 MPa\uff1b\u66f4\u9ad8\u9700\u52a0\u5728\u7ebf\u8870\u51cf\u5668\u3002<\/li>\n<\/ul>\n<h3>\u4e0d\u9002\u5408 \/ \u9700\u8c28\u614e\u7684\u573a\u666f<\/h3>\n<ul>\n<li><strong>20 MHz \u4ee5\u4e0a\u9ad8\u9891\u573a\uff1a<\/strong>2.0 mm \u5b54\u5f84\u7a7a\u95f4\u5e73\u5747\u4e25\u91cd\u3001\u65b9\u5411\u6027\u5f3a\uff0c\u5e94\u9009 NH0200\uff080.2 mm\uff09\u6216 NH0075\uff080.075 mm\uff09\u3002<\/li>\n<li><strong>10 MHz \u5904\u4e8e\u91cf\u7a0b\u8fb9\u7f18\uff1a<\/strong>\u53ef\u4ee5\u6d4b\uff0c\u4f46\u4ec5\u4fdd\u8bc1\u5728 \u00b14 dB \u5e73\u5766\u5ea6\u5185\uff0c\u9700\u8c28\u614e\u89e3\u8bfb\u3002<\/li>\n<li><strong>\u9700\u8981\u9ad8\u7a7a\u95f4\u5206\u8fa8\u7387 \/ \u6700\u5c0f\u7a7a\u95f4\u5e73\u5747\uff1a<\/strong>\u5e94\u9009\u66f4\u5c0f\u5b54\u5f84\u578b\u53f7\u3002<\/li>\n<li><strong>\u8d85\u8fc7 10 MPa \u7684\u5f3a\u573a\uff1a<\/strong>\u6709\u635f\u574f\u98ce\u9669\uff0c\u987b\u5148\u54a8\u8be2\u4f9b\u5e94\u5546\u6216\u52a0\u8870\u51cf\u5668\u3002<\/li>\n<li><strong>\u9ad8\u538b\u4f46\u672a\u52a0\u8870\u51cf\uff1a<\/strong>\u524d\u7f6e\u653e\u5927\u5668\u7ea6 200 kPa \u5c31\u4f1a\u975e\u7ebf\u6027\uff0c\u9700\u52a0 20 dB \u8870\u51cf\u5668\u3002<\/li>\n<\/ul>\n<h2>\u914d\u5957\u9644\u4ef6\u4e0e\u7cfb\u7edf\u7ec4\u6210\uff08Accessories\uff09<\/h2>\n<ul>\n<li><strong>HP1 \u6f5c\u6c34\u5f0f\u524d\u7f6e\u653e\u5927\u5668\uff1a<\/strong>\u9488\u5f0f\u6c34\u542c\u5668\u5fc5\u9700\uff0c\u63d0\u4f9b\u963b\u6297\u7f13\u51b2\u4e0e\u7ea6 8 dB \u589e\u76ca\u3002<\/li>\n<li><strong>DC Coupler \u4f9b\u7535\u8026\u5408\u5668\uff1a<\/strong>\u4e3a\u524d\u7f6e\u653e\u5927\u5668\u4f9b\u7535\u3002<\/li>\n<li><strong>Booster Amplifier\uff08\u589e\u5f3a\u653e\u5927\u5668\uff09\uff1a<\/strong>\u5f31\u4fe1\u53f7\u573a\u666f\u53ef\u9009\uff0c\u589e\u76ca &gt; 25 dB\uff0c\u5e26\u5bbd 50 kHz \u2013 125 MHz\u3002<\/li>\n<li><strong>\u5728\u7ebf\u8870\u51cf\u5668\uff08Attenuator\uff09\uff1a<\/strong>\u9ad8\u538b\u573a\uff08&gt; \u7ea6 200 kPa\uff09\u9632\u6b62\u524d\u7f6e\u653e\u5927\u5668\u9971\u548c\uff0c\u8870\u51cf 20 dB \u00b1 3 dB\u3002<\/li>\n<li><strong>\u6c34\u542c\u5668\u652f\u67b6 \/ L \u578b\u652f\u67b6\uff1a<\/strong>\u7528\u4e8e\u628a\u654f\u611f\u5143\u4ef6\u7cbe\u786e\u7f6e\u4e8e\u65cb\u8f6c\u4e2d\u5fc3\u3002<\/li>\n<li>\u6d4b\u91cf\u7aef\u9700 50 \u03a9 \u7aef\u63a5\u3002<\/li>\n<\/ul>\n<h2>\u5982\u4f55\u9009\u578b\uff08How to Choose\uff09<\/h2>\n<ul>\n<li>\u5982\u679c<strong>\u6700\u4f4e\u6d4b\u91cf\u9891\u7387\u5728 1 MHz \u4ee5\u4e0b<\/strong>\uff0c\u4e14\u9700\u8981<strong>\u9ad8\u7075\u654f\u5ea6<\/strong> \u2192 \u4f18\u5148\u8003\u8651 NH2000\u3002<\/li>\n<li>\u5982\u679c\u6d4b\u91cf<strong>\u4e3b\u8981\u5728 1 MHz \u4ee5\u4e0a\u3001\u8ffd\u6c42\u5bbd\u5e26\u5bbd\u4e0e\u66f4\u597d\u65b9\u5411\u6027<\/strong> \u2192 \u9009 NH1000 \/ NH0500 \/ NH0200\u3002<\/li>\n<li>\u5982\u679c<strong>\u65e2\u8981\u8986\u76d6 500 kHz\uff0c\u53c8\u8981\u8986\u76d6\u5230 10 MHz\uff08\u751a\u81f3\u66f4\u9ad8\uff09<\/strong> \u2192 \u5355\u652f\u63a2\u5934\u5f88\u96be\u540c\u65f6\u6700\u4f18\uff0c\u901a\u5e38\u9700\u8981\u7ec4\u5408\u6216\u660e\u786e\u53d6\u820d\uff08\u89c1\u5bf9\u6bd4\u8868\uff09\u3002<\/li>\n<li>\u5982\u679c<strong>\u4fe1\u53f7\u6781\u5f31<\/strong>\uff08\u4f4e\u9891\u6cbb\u7597\u8d85\u58f0\u3001\u5fae\u5f31\u58f0\u573a\uff09 \u2192 NH2000 \u7684\u9ad8\u7075\u654f\u5ea6\u662f\u4f18\u52bf\u3002<\/li>\n<\/ul>\n<h2>NH2000 vs NH0200\uff1a\u9891\u7387\u8303\u56f4\u3001\u7075\u654f\u5ea6\u4e0e\u9002\u7528\u573a\u666f\u5bf9\u6bd4<\/h2>\n<p><strong>\u7ed3\u8bba\u5148\u8bf4\uff1a<\/strong>NH2000\uff082.0 mm\uff09\u9762\u5411 <strong>2 MHz \u4ee5\u4e0b\u7684\u4f4e\u9891\u9ad8\u7075\u654f\u5ea6<\/strong>\u6d4b\u91cf\uff0c\u00b14 dB \u8986\u76d6 0.1\u201310 MHz\uff1bNH0200\uff080.2 mm\uff09\u9762\u5411 <strong>\u9ad8\u9891\u5bbd\u5e26\u3001\u6700\u5c0f\u7a7a\u95f4\u5e73\u5747<\/strong>\uff0c\u00b14 dB \u8986\u76d6 1\u201335 MHz\u3002\u4e24\u8005\u4e0d\u662f\u66ff\u4ee3\u5173\u7cfb\uff0c\u800c\u662f\u4f4e\u9891 \/ \u9ad8\u9891\u4e24\u7aef\u7684\u5206\u5de5\u3002<\/p>\n<table>\n<caption>NH2000 vs NH0200 \u53c2\u6570\u5bf9\u6bd4\uff08\u6570\u636e\u6765\u6e90\uff1aPrecision Acoustics Hydrophone Product Selector\uff09<\/caption>\n<thead>\n<tr>\n<th>\u5bf9\u6bd4\u9879<\/th>\n<th>NH2000\uff082.0 mm\uff09<\/th>\n<th>NH0200\uff080.2 mm\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u654f\u611f\u5143\u4ef6\u76f4\u5f84<\/td>\n<td>2.0 mm<\/td>\n<td>0.2 mm<\/td>\n<\/tr>\n<tr>\n<td>\u5178\u578b\u7075\u654f\u5ea6<\/td>\n<td>3.5 V\/MPa\uff080.5\u20138 MHz\uff09<\/td>\n<td>55 mV\/MPa\uff082\u201312 MHz\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u00b12 dB \u5e26\u5bbd<\/td>\n<td>0.4 \u2013 6 MHz<\/td>\n<td>5 \u2013 25 MHz<\/td>\n<\/tr>\n<tr>\n<td>\u00b14 dB \u5e26\u5bbd<\/td>\n<td>0.1 \u2013 10 MHz<\/td>\n<td>1 \u2013 35 MHz<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u8981\u4f18\u52bf<\/td>\n<td>\u4f4e\u9891\u9ad8\u7075\u654f\u5ea6\u3001\u53ef\u6d4b\u6781\u5f31\u4fe1\u53f7<\/td>\n<td>\u65b9\u5411\u6027\u5bbd\u3001\u7a7a\u95f4\u5e73\u5747\u6700\u5c0f\u3001\u9ad8\u9891\u6027\u80fd\u597d<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u8981\u4ee3\u4ef7<\/td>\n<td>\u65b9\u5411\u6027\u5f3a\u3001\u7a7a\u95f4\u5e73\u5747\u660e\u663e\uff0c\u9ad8\u9891\u8bef\u5dee\u5927<\/td>\n<td>\u7075\u654f\u5ea6\u4f4e\u7ea6 60 \u500d\uff0c\u4f4e\u9891\u54cd\u5e94\u5dee<\/td>\n<\/tr>\n<tr>\n<td>\u5178\u578b\u5e94\u7528<\/td>\n<td>\u4f4e\u9891\u6362\u80fd\u5668\u8868\u5f81\u3001500 kHz\u20131 MHz \u795e\u7ecf\u8c03\u63a7\/\u6cbb\u7597\u8d85\u58f0\u58f0\u573a<\/td>\n<td>\u8bca\u65ad\u8d85\u58f0\u3001HIFU \u9ad8\u9891\u58f0\u573a\u3001\u9700\u9ad8\u7a7a\u95f4\u5206\u8fa8\u7387\u6d4b\u91cf<\/td>\n<\/tr>\n<tr>\n<td>\u63a8\u8350\u9891\u7387<\/td>\n<td>&lt; 2 MHz \u4e3a\u4e3b\uff0c\u53ef\u7528\u81f3 10 MHz\uff08\u964d\u7ea7\uff09<\/td>\n<td>1 MHz \u4ee5\u4e0a\uff0c\u5178\u578b 2\u201312 MHz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u5e38\u89c1\u95ee\u9898\uff08FAQ\uff09<\/h2>\n<h3>NH2000 \u80fd\u6d4b 10 MHz \u8d85\u58f0\u5417\uff1f<\/h3>\n<p>\u53ef\u4ee5\uff0c\u4f46 10 MHz \u662f\u5176\u91cf\u7a0b\u8fb9\u7f18\u3002\u5b98\u65b9\u9891\u5e26\u4e3a 0.1\u201310 MHz\uff0c\u00b14 dB \u5e73\u5766\u5ea6\u4e0a\u9650\u6b63\u597d\u662f 10 MHz\uff0c\u00b12 dB \u4e0a\u9650\u53ea\u6709 6 MHz\u3002\u5728 10 MHz \u65f6\uff0c2.0 mm \u5927\u5b54\u5f84\u4f1a\u5e26\u6765\u660e\u663e\u7684\u65b9\u5411\u6027\u6536\u7a84\u4e0e\u7a7a\u95f4\u5e73\u5747\u8bef\u5dee\uff0c\u8bfb\u6570\u9700\u8c28\u614e\u89e3\u8bfb\u3002\u5982\u679c\u4e3b\u8981\u5de5\u4f5c\u662f 10 MHz \u4ee5\u4e0a\u3001\u4e14\u9700\u8981\u51c6\u786e\u7a7a\u95f4\u5206\u5e03\uff0c\u5e94\u9009 NH0200\u3002<\/p>\n<h3>NH2000 \u7684\u9891\u7387\u8303\u56f4\u5230\u5e95\u662f\u591a\u5c11\uff1f<\/h3>\n<p>\u6807\u5b9a\u9891\u5e26 0.1 MHz \u2013 10 MHz\uff08\u5373 100 kHz\u201310 MHz\uff09\uff0c\u6700\u4f4e\u6807\u5b9a\u9891\u7387 30 kHz\u3002\u5176\u4e2d \u00b12 dB \u5e73\u5766\u533a\u4e3a 400 kHz \u2013 6 MHz\uff0c\u662f\u5b83\u6700\u5fe0\u5b9e\u7684\u5de5\u4f5c\u533a\u95f4\u3002<\/p>\n<h3>NH2000 \u7684\u7075\u654f\u5ea6\u662f\u591a\u5c11\uff1f<\/h3>\n<p>\u5178\u578b\u63a2\u5934\u7075\u654f\u5ea6 3.5 V\/MPa\uff080.5\u20138 MHz \u5e73\u5747\uff0c\u7ea6 \u2212229.1 dB re 1 V\/\u00b5Pa\uff09\uff0c\u4e2a\u4f53\u5dee\u5f02\u7ea6 \u00b13 dB\u3002\u8fd9\u662f\u6c34\u542c\u5668\u7cfb\u7edf\uff08\u542b HP1 \u524d\u7f6e\u653e\u5927\u5668\u300150 \u03a9 \u7aef\u63a5\uff09\u7684\u7aef\u63a5\u7075\u654f\u5ea6\u3002<\/p>\n<h3>NH2000 \u9700\u8981\u914d\u4ec0\u4e48\u9644\u4ef6\uff1f<\/h3>\n<p>\u5fc5\u987b\u914d HP1 \u6f5c\u6c34\u5f0f\u524d\u7f6e\u653e\u5927\u5668\uff08\u63d0\u4f9b\u7ea6 8 dB \u589e\u76ca\u300150 \u03a9 \u963b\u6297\u7f13\u51b2\uff09+ DC Coupler \u4f9b\u7535\u8026\u5408\u5668\u3002\u9ad8\u538b\u573a\uff08&gt; \u7ea6 200 kPa\uff09\u5efa\u8bae\u52a0 20 dB \u5728\u7ebf\u8870\u51cf\u5668\u4ee5\u9632\u524d\u7f6e\u653e\u5927\u5668\u9971\u548c\uff1b\u6d4b\u91cf\u7aef\u9700 50 \u03a9 \u7aef\u63a5\u3002<\/p>\n<h3>NH2000 \u6700\u5927\u80fd\u6d4b\u591a\u5927\u58f0\u538b\uff1f<\/h3>\n<p>\u63a2\u5934\u8bbe\u8ba1\u58f0\u573a\u4e0a\u9650 10 MPa\uff08\u8d85\u8fc7\u6b64\u503c\u635f\u574f\u98ce\u9669\u5347\u9ad8\uff1b\u8be5\u7cfb\u5217\u5386\u53f2\u4e0a\u66fe\u7528\u4e8e &gt; 50 MPa \u573a\uff09\u3002\u4f46\u5728\u7ea6 200 kPa \u4ee5\u4e0a\uff0c\u524d\u7f6e\u653e\u5927\u5668\u4f1a\u5148\u51fa\u73b0\u975e\u7ebf\u6027\uff0c\u6b64\u65f6\u5e94\u52a0\u5728\u7ebf\u8870\u51cf\u5668\u3002<\/p>\n<h3>NH2000 \u7684\u566a\u58f0\u7b49\u6548\u58f0\u538b\u662f\u591a\u5c11\uff1f<\/h3>\n<p>\u566a\u58f0\u7b49\u6548\u58f0\u538b\uff08NEP\uff09\u7ea6 17 Pa\uff0c\u8fd9\u662f\u53d7\u524d\u7f6e\u653e\u5927\u5668\u566a\u58f0\u9650\u5236\u7684\u7406\u8bba\u6700\u5c0f\u53ef\u6d4b\u58f0\u538b\u3002\u5b9e\u9645\u6d4b\u91cf\u4e0b\u9650\u8fd8\u53d6\u51b3\u4e8e\u6570\u636e\u91c7\u96c6\u8bbe\u5907\u7684\u5206\u8fa8\u7387\uff0c\u4f8b\u5982\u793a\u6ce2\u5668 0.5 mV \u5206\u8fa8\u7387\u5bf9\u5e94\u7ea6 143 Pa \u7684\u6700\u5c0f\u53ef\u663e\u793a\u4fe1\u53f7\u3002<\/p>\n<h3>\u9700\u8981\u591a\u4e45\u6807\u5b9a\u4e00\u6b21\uff1f<\/h3>\n<p>\u505a\u7edd\u5bf9\u58f0\u538b\u6d4b\u91cf\u7684\u9488\u5f0f\u6c34\u542c\u5668\u5efa\u8bae\u81f3\u5c11\u6bcf 12 \u4e2a\u6708\u6807\u5b9a\u4e00\u6b21\uff0c\u5e76\u6bcf\u6708\u7528\u53c2\u8003\u6e90\u6838\u67e5\u4e00\u6b21\uff0c\u4ee5\u4fbf\u66f4\u65e9\u53d1\u73b0\u7075\u654f\u5ea6\u6f02\u79fb\u3002<\/p>\n<h3>NH2000 \u80fd\u7528\u5728\u522b\u7684\u6db2\u4f53\u91cc\u5417\uff1f<\/h3>\n<p>\u53ef\u4ee5\u7528\u4e8e\u84d6\u9ebb\u6cb9\u3001\u77ff\u7269\u6cb9\u7b49\u6db2\u4f53\uff0c\u4f46\u6807\u5b9a\u662f\u5728\u6c34\u4e2d\u5b8c\u6210\u7684\uff0c\u6362\u4ecb\u8d28\u4f1a\u6539\u53d8\u58f0\u963b\u6297\u8d1f\u8f7d\u5e76\u5f71\u54cd\u7075\u654f\u5ea6\u3002\u7981\u6b62\u4f7f\u7528\u6d53\u9178\u3001\u6d53\u78b1\u548c\u5f3a\u6709\u673a\u6eb6\u5242\uff08\u5982\u919b\u7c7b\u3001\u916e\u7c7b\u3001DMC\u3001DMF\uff09\u3002<\/p>\n<h2>\u8d44\u6599\u6765\u6e90\uff08Source \/ References\uff09<\/h2>\n<ul>\n<li>Precision Acoustics Ltd \u2014 <a href=\"https:\/\/www.acoustics.co.uk\/product\/2mm-needle-hydrophone\/\" target=\"_blank\" rel=\"noopener nofollow\">2.0 mm needle hydrophone \u5b98\u65b9\u4ea7\u54c1\u9875<\/a><\/li>\n<li>Precision Acoustics Ltd \u2014 <a href=\"https:\/\/www.acoustics.co.uk\/wp-content\/uploads\/2022\/11\/NH2000-2.0mm-Needle-hydrophone-TDS-V1-0222.pdf\" target=\"_blank\" rel=\"noopener nofollow\">NH2000 \u6280\u672f\u6570\u636e\u8868\uff08TDS V1 0222\uff0cPDF\uff09<\/a><\/li>\n<li>Precision Acoustics Ltd \u2014 <a href=\"https:\/\/shop.acoustics.co.uk\/wp-content\/uploads\/2023\/04\/Hydrophone-Product-Selector-V2-0322.pdf\" target=\"_blank\" rel=\"noopener nofollow\">Hydrophone Product Selector\uff08PDF\uff09<\/a><\/li>\n<li>\u6807\u51c6\uff1aIEC 62127-1 \/ -3\uff1bIEC 61157\uff1bJCGM 100:2008\u3002<\/li>\n<\/ul>\n<p>Prepared by: One Hammer Technology (Shanghai) Co., Ltd.<br \/>Last updated: 2026 \u5e74 9 \u6708<\/p>\n<h2>\u76f8\u5173\u9605\u8bfb<\/h2>\n<ul>\n<li><a href=\"\/precision-acoustics\/nh0200-needle-hydrophone\/\">Precision Acoustics NH0200 0.2 mm \u9488\u5f0f\u6c34\u542c\u5668<\/a><\/li>\n<li><a href=\"\/precision-acoustics\/hydrophone-system\/\">\u6c34\u542c\u5668\u7cfb\u7edf\u4e0e\u8d85\u58f0\u573a\u6d4b\u91cf<\/a><\/li>\n<li><a href=\"\/precision-acoustics\/nh1000-needle-hydrophone\/\">Precision Acoustics NH1000 1.0 mm \u9488\u5f0f\u6c34\u542c\u5668<\/a><\/li>\n<li>\u8fd4\u56de\uff1a<a href=\"\/precision-acoustics\/\">Precision Acoustics \u6c34\u542c\u5668\u4e0e\u8d85\u58f0\u6d4b\u8bd5\u8bbe\u5907<\/a><\/li>\n<\/ul>\n<p>\u5982\u9700 NH2000 \u9009\u578b\u5efa\u8bae\u6216\u62a5\u4ef7\uff0c\u6b22\u8fce<a href=\"\/contact-us\/\">\u8054\u7cfb\u6211\u4eec<\/a>\u3002<\/p>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Organization\",\n      \"@id\": \"https:\/\/onehammertech.com\/#organization\",\n      \"name\": \"One Hammer Technology (Shanghai) Co., Ltd.\",\n      \"alternateName\": \"\u5143\u9524\u79d1\u6280 OneHammer Tech\",\n      \"url\": \"https:\/\/onehammertech.com\/\",\n      \"email\": \"info@onehammertech.com\",\n      \"telephone\": \"+86-15618182182\",\n      \"address\": {\n        \"@type\": \"PostalAddress\",\n        \"streetAddress\": 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