Bode plot 示波器软件

一般分析

Bode plot 示波器软件
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Bode plot 示波器软件
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Bode plot 示波器软件
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Bode plot 示波器软件
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Bode plot oscilloscope software, Screenshot Bode plot oscilloscope software, Screenshot Bode plot oscilloscope software, Screenshot Bode plot Oscilloscope software, Screenshot

主要特点

  • 带宽:10 Hz 至 25 MHz
  • 测试模式:固定或自定义幅度剖面
  • 每十倍频程至多 500 个频率点:对数增益和线性相位
  • 分析:波形光标,并以图表方式显示测试结果

示波器软件

R&S®RTx-K36 频率响应分析(波特图)选件可以轻松快速地在示波器上执行低频响应分析。它可以测定多种电子设备的频率响应,包括无源滤波器和放大器电路。它还可以测量开关电源的控制环路响应和电源抑制比。频率响应分析选件使用示波器的内置波形发生器生成 10 Hz 至 25 MHz 的激励信号。通过测量每个测试频率下被测设备的激励信号与输出信号之比,示波器波特图会以对数方式显示增益和相位。

特性和优点

幅度剖面

用户可以使用 R&S®RTx-K36 频率响应分析(波特图)选件分析发生器的幅度输出电平。在执行控制环路响应或电源抑制比分析时,该选件有助于抑制被测设备的噪声特性,还有助于提高信噪比 (SNR)。最多可定义 16 步长。

幅度剖面
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幅度剖面

用户可以在测量过程中改变发生器信号的幅度输出电平,以抑制被测设备的噪声特性。

提高分辨率和标记支持

用户可以选择十倍频程频率点,以设置和调节波特图的分辨率。示波器每十倍频程至多可采集 500 个频率点。用户可以直接在图中迹线上将标记拖拽至所需位置。图例可显示标记的相应坐标。为确定交叉频率,将一个标记设置为 0 dB,将另一个标记设置为 –180° 相移。现在可以轻松确定相位和增益裕量。

更改十倍频程频率点
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更改十倍频程频率点

测量分辨率可通过更改十倍频程频率点加以调整

测量表

此外,用户可以在表格中查看结果。测量结果表格包含每个测量点的详细信息,包括频率、增益和相移。如为方便起见而使用光标,则也可以将结果表的相关行高亮显示。可将屏幕截图和/或表格结果快速保存至 USB 设备以生成报告。

测量表
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测量表

测量结果表格包含每个测量点的详细信息,包括频率、增益和相移

丰富的探头组合

精确的控制环路响应或电源抑制比特性测量在很大程度上取决于是否选择了合适的探头,这是因为 Vin 和 Vout 的峰间幅度在一些测试频率下会非常低。这些数值会被掩盖在示波器的噪声基底或被测设备的开关噪声中。建议使用低噪声 R&S®RT-ZP1X 38 MHz 带宽 1:1 无源探头。这些探头有助于降低测量噪声,并提供最佳 SNR。

R&S®RT-ZP1X 38 MHz 1:1 无源探头
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R&S®RT-ZP1X 38 MHz 1:1 无源探头

低噪声无源探头有助于降低测量噪声,并提供最佳 SNR。

可用型號

可用型號
型号
幅度剖面
标记支持
定义最大相位
最小测量延迟

R&S®MXO5-K36

订单号码 1802.1943.02

幅度剖面
标记支持
定义最大相位
最小测量延迟

R&S®MXO4-K36

订单号码 1335.5572.02

幅度剖面
标记支持
定义最大相位
最小测量延迟

R&S®RTA-K36

订单号码 1335.7975.02

幅度剖面
标记支持
定义最大相位
最小测量延迟

R&S®RTM-K36

订单号码 1335.9178.02

幅度剖面
标记支持
定义最大相位
最小测量延迟

R&S®RTB-K36

订单号码 1335.8007.02

幅度剖面
标记支持
定义最大相位
最小测量延迟

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