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产品简介
专为脑电类产品共模抑制比设计的专用测试仪,绝缘及接地设计,可量测更好的CMRR值,符合IEC80601-2-26:2019国际医疗标准性能测试要求,适用于研发、法规符合性及产线测试
产品参数
1.专为脑电类产品共模抑制比设计的专用测试仪,较佳的绝缘及接地设计,可量测更好的CMRR值,符合IEC80601-2-26:2019国际医疗标准性能测试要求,适用于研发、法规符合性及产线测试
2.针对脑电图机的共模抑制比(CMRR)和内部噪声测试所设计的测试仪
3.双层屏蔽结构,避免内部与外部的噪声干扰
4.内建校准过的正弦波产生器,解决外接信号产生器电压供应不足问题
5.单机即可使用触控面板调整参数后测试,连接专用软件后可由计算机设定参数
6.CMRR标准辅助软件简化测试步骤,点击鼠标即可完成标准需求的测试项目
7.提供软件开发工具包(Software Development Kit),用户可自行开发客制或全自动化测试软件
产品规格
Item | Option | Specifications |
---|---|---|
Supply voltage | 0.5 / 2.828 / 20 / 2 / (70.71) (Vrms) | ±1% |
CM point voltage | 1.414 / 10/ 1/ (35.355) (Vrms) | ±1% ( 0.25Vrms ±2% ) |
Frequency | 50 / 60 / 100 /120 (Hz) | ±1% |
Electrode with Impedance | Change electrode via the touch screen of CMRR 3.0E | None/RA/LA/LL/V1/V2/V3/V4/V5/V6 /ALL |
Electrode without Impedance | Change electrode via the touch screen of CMRR 3.0E | RA/LA/LL/V1/V2/V3/V4/V5/V6 |
Imbalance impedance, R | 10kΩ | 10kΩ ±1% |
Imbalance impedance, C | 47nF | 47nF ± 5% |
DC offset | Internal battery powered, can be added on RA/ LA/LL/V1~V6 | 150mV ± 1% Up to 40hrs with intermittent use |
100 pF capacitor | Use 11:1 (110MΩ:10MΩ) voltage divider to measure indirectly | 100pF ± 5% |
Environment | Intended for normal laboratory environment. The selection of critical components is known to be stable in the range shown. The 110MΩ divider may be affected by high humidity in excess of 85% | 15-30°C 10-75% RH |