Harmonic Output EN 7 Harmonic Output The HDG3000B can be used as a harmonic generator to output harmonic with specified order, amplitude and phase. It is usually used in the test of harmonic detector device or harmonic filter device. This chapter introduces how to configure the generator to output harmonics. Subjects in this chapter: 7.1 Overview According to Fourier transform, time domain waveform is the superposition of a series of sine waveforms as shown in the equation below: Generally, component with f 1 frequency is called basic waveform, f 1 is basic waveform frequency, A 1 is basic waveform amplitude and φ 1 is basic waveform phase.
The frequencies of other components (called harmonics) are all integral multiples of the basic waveform frequency. Components whose frequencies are odd multiples of the basic waveform frequency are odd harmonics and components whose frequencies are even multiples of the basic waveform frequency are even harmonics. HDG3000B can output up to 16th order of harmonic. After selecting CH1 or CH2, press [Wave] > Harmonic softkey on the front panel to enter the harmonic setting menu. Users can set the parameters of basic waveform, set the type of harmonic, specify the highest order of harmonic and set the amplitude and phase of each order of harmonic.
After finishing harmonic parameter setting, press [Output1] button or (and) [Output2] button on the front panel and the backlight of the button turns on, the instrument outputs the specified harmonic from the corresponding output terminal. 7.2 Set the Basic Waveform Parameters Users can set various basic waveform parameters such as frequency, period, amplitude, DC offset voltage, high level, low level and start phase. It also supports synchronizing phase operation. Please refer to introductions in " Basic Waveform Output " to set basic waveform parameters. 7.3 Set the Harmonic Order The highest order of harmonic output cannot be greater than this setting value.
Press [Wave] > Harmonic softkey on the front panel to enter the harmonic setting menu, and press Order softkey, at this time, the " Order ” on the screen is highlighted, use the numeric keypad or the direction keys and the knob to input the corresponding HDG3000B User manual Copyright © Qingdao Hantek Electronics Co., LTD 32