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█特点 █Features
●高频损耗小 ●Low loss at high frequency
●容量精度高,可达2% ●High capacity accuracy
●阻燃环氧树脂包封(UL94V-0) ●epoxy resin powder coating(UL94V-0)
●产品体积小,便于安装 ●Small size of product, easy to install
█主要用途 █ Typical application
●广泛用隔直、耦合和LC谐振电路中 ●Widely used in isolation, coupling LC resonance circuits
●适用于洗衣机传感器电路。 ●Suitable for washing machine sensor circuit
█技术要求 Specifications
引用标准Reference Standard | GB/T 14579 (IEC 06384-17) |
气候类别Climatic Category | 40/100/21 |
额定温度Rated Temperature | 85℃ |
工作温度范围Operating Temperature Range | -40℃~100℃(85~100℃:decreasing factor 1.25% per℃ for Ur) |
额定电压Rated Voltage | 63V、100V、250V、630V、1000V |
电容量范围Capacitance Range | 0.00047µF~0.22µF |
电容量偏差Capacitance Tolerance | ±2%(H)、±5%(J) |
耐电压Voltage Proof | 1.6 Ur(5s) |
损耗角正切Dissipation Factor | ≤0.8%(20℃,1kHz) |
绝缘电阻Insulation Resistance
| ≥5000MΩ,Cr≤0.33µF (20℃,10V,1min) ≥3000s, Cr>0.33µF |
工作原理working principle:
全自动洗衣机的水位高低检测是根据与洗衣桶内侧相连的水压气管里的空气压力大小来判断。水位越高,水压就越大,从而导致传感器里的电感线圈的电感量就越大,再根据电感与电容的并联谐振频率公式:f=1/2π√LC得出谐振频率就越小,反之则反。然后将产生的谐振频率经过单片机的处理来判定水位的高低(频率越大,则水位越低;反之则反)。
The water level of the automatic washing machine is measured according to the air pressure in the hydraulic pipe connected with the inside of the washing drum. The higher the water level, the greater the water pressure, resulting in a greater inductance in the inductor coil in the sensor, according to the parallel resonant frequency formula of inductance capacitance: F =1/2 √LC, the smaller the resonant frequency is, the reverse is the reverse. Then the resonant frequency will be generated through the single-chip microcomputer processing to determine the height of the water level (the higher the frequency, the lower the water level; The reverse is true.