CYH2018 Publish time 2022-12-15 08:48:15

A/C and D/C coupling support

Dear sir/madam
I bought my hantek 6022BE oscilloscope, Amperage clamp and attenuator. My problem is if l download software from disk does not support A/C and D/C coupling even to use Amperage clamp.Thanks in advance

Sent from my Huawei phone

CYH2018 Publish time 2022-12-15 08:50:40


Dear Sir,

Greeting from Hantek.

Yes,The6022BE does not support A/C coupling.

Have a nice day.

含光左卫 Publish time 2023-7-4 17:00:13

a/c coupling can achieve in digital way. like this:

#信号去除0点：
def dc2ac(signal):
    # 下面，将对应信号转至频域消除0点后转回时域
    x = signal
    # 傅里叶变换
    X = np.fft.fft(x)# 计算原始信号的傅里叶变换
    # 去除直流分量
    X = 0;
    # 幅角变换
    phase_shift = np.zeros(len(X))
    phase_shift = -np.angle(X)
    X_corrected = X * np.exp( 1j * phase_shift)
    # 转回时域
    x_withoutDC = np.real(np.fft.ifft(X_corrected));
    return x_withoutDC;
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