参数资料
型号: 2532
厂商: B&K Precision
文件页数: 58/70页
文件大小: 0K
描述: OSCOPE 40MHZ DIGITAL STORAGE
产品目录绘图: 25xx
特色产品: DSO Series
标准包装: 1
系列: 2532
类型: 工作台 - 数字
带宽: 40MHz
通道: 2
显示器类型: LCD - 彩色
接口: USB
功能: 记录、回放、保存、趋势
探头类型: 无源 10:1(2)
采样率(每秒): 500M
输入阻抗: 1M - 13pF
上升时间(标准值): 8.8ns
电压 - 输入(最大): CAT II 300V
电源电压: 100 ~ 240VAC
包括: 探针,软件,USB 线缆
其它名称: BK2532
9
Turn the VOLTS/DIV and VERTICAL POSITION knobs to optimize the display.
10 Press the “Persist” option button and select “Infinite”.
11 Press the “Contrast - ” or “Contrast + ”option buttons to adjust the contrast of the screen.
12 Apply the Ellipse method to observe the phase difference between the two channels
D
A
B
C
Figure 4-3
sin θ =A/B or C/D where θ =phase shift (in degrees )between the two signals. From the formula above ,you
could get: θ = ± arcsine (A/B) or ±arcsine (C/D)
4.7 Analyzing a Differential Communication Signal
You are having intermittent problems with a serial data communication link, and you suspect poor signal
quality. Set up the oscilloscope to show you a snapshot of the serial data stream so you can verify the
signal levels and transition times.
Because this is a differential signal, you can use the math function of the oscilloscope to view a better
representation of the waveform.
To activate the differential signals connected to channel 1 and channel 2, follow these steps:
1
2
3
4
5
6
7
8
Press the CH 1 button and set the Probe option attenuation to 10X.
Press the CH 2 button and set the Probe option attenuation to 10X.
Set the switches to 10X on the probes.
Press the AUTO button.
Press the “MATH” button to see the Math Menu.
Press the “Operation” option button and select “ - ”.
Press the “CH1 - CH2” option button to display a new waveform that is the difference between the
displayed waveforms.
You can adjust the vertical scale and position of the Math waveform. To do so, follow these steps:
- Remove the channel 1 and channel 2 waveforms from the display.
58
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