網誌

什么是 Crest Factor

贺拉斯-贺

最後更新:2023年12月26日

什么是 Crest Factor

峰值因数是指电流或电压信号的峰值与均方根值之间的比率。它是一种测量仪器规格,用于描述波形或信号动态范围的大小。峰值因数用来表示输入信号的质量,也可以用来衡量峰值与均方根值的比值。

在照明行业中,不同类型的负载表现出不同的电流波形,波峰因数也各不相同。加热器和白炽灯等电阻负载的电流波形接近正弦,波峰因数接近 1.4。功率因数校正负载,如电子照明镇流器和计算机电源,波峰因数通常在 1.4 至 1.5 之间。电池充电器和 VSD 电机控制器等非线性负载的波峰因数可达 2.0 至 3.0,甚至更高。

也许您感兴趣的是

  • Ceiling-mounted PIR occupancy sensor with dry-contact relay output
  • 12/24VDC or 12/24VAC low-voltage supply
  • COM, NO, and NC isolated relay contacts for EMS, HVAC, and building control inputs
RZ048 recessed ceiling microwave motion sensor product image
  • Low-voltage DC recessed ceiling-mounted microwave motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • 10A max work current with adjustable time delay, Lux threshold, and sensitivity
RZ048 recessed ceiling microwave motion sensor product image
  • Higher-load recessed ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ048 recessed ceiling microwave motion sensor product image
  • Recessed ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
  • Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 220V power
  • 3A maximum working current with 660W rated load
  • LUX button controls light-sensor ON/OFF and user-set dimming brightness
  • Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 110V power
  • 3A maximum working current with 330W rated load
  • LUX button controls light-sensor ON/OFF and user-set dimming brightness
RZ047 ceiling mounted microwave motion sensor switch
  • Low-voltage DC ceiling-mounted microwave motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • 10A max work current with adjustable time delay, Lux threshold, and sensitivity
RZ047 ceiling mounted microwave motion sensor switch
  • Higher-load ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ047 ceiling mounted microwave motion sensor switch
  • Ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor top and side view
  • Low-voltage DC recessed ceiling mount PIR motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • Max work current 10A with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor front view
  • Higher-load recessed ceiling mount PIR motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 360-degree detection with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor front view
  • Recessed ceiling mount PIR motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 360-degree detection with adjustable time delay, Lux threshold, and sensitivity
RZ040 wireless switch and receiver kit
  • Wireless switch and receiver kit for indoor ON/OFF lighting control
  • 100-230VAC, 50/60Hz receiver with 5A rated current
  • CR2032-powered wireless switch with 2.4GHz communication
  • 占用(自動開/自動關)
  • 12–24V 直流(10–30VDC),最大 10A
  • 360° 覆蓋範圍,直徑 8–12 米
  • 延遲時間 15 秒–30 分鐘
  • 光感測器關/15/25/35 Lux
  • 高/低感度
  • 自动开启/自动关闭占用模式
  • 100–265V交流,10A(需要中性線)
  • 360° 覆蓋範圍;8–12 米探測直徑
  • 時間延遲 15 秒–30 分鐘;Lux OFF/15/25/35;感度 高/低
  • 自动开启/自动关闭占用模式
  • 100–265V AC,5A(需要中性線)
  • 360° 覆蓋範圍;8–12 米探測直徑
  • 時間延遲 15 秒–30 分鐘;Lux OFF/15/25/35;感度 高/低
  • 100V-230VAC
  • 傳輸距離:最多20米
  • 無線運動感應器
  • 有線控制
  • 電壓:2x AAA 電池 / 5V DC (Micro USB)
  • 日/夜模式
  • 时间延迟:15分钟、30分钟、1小时(默认)、2小时

"(《世界人权宣言》) 波峰因數 在测量具有高电流波峰因数的单个负载时,这一点变得尤为重要。如果峰值电流超过测量仪器(如电流互感器 (CT))的容量,读数就会变得不准确。因此,选择额定电流能够承受预期峰值电流的 CT 至关重要。

从 Rayzeek 运动传感器产品组合中获得灵感。

没有找到您想要的?别担心。总有其他方法可以解决您的问题。也许我们的作品集就能帮到您。

發表評論

Chinese