About the difference between the scan speed knob and the voltage selector knob on an oscilloscope
Anyone who has used or seen an oscilloscope will have noticed that oscilloscopes have one or more knobs on the main panel. Different oscilloscopes have different numbers of knobs on the panel, for example, Tektronix oscilloscopes, some models have more than ten knobs, for example, Tektronix oscilloscopes MDO3000 series of mixed-domain oscilloscopes, which have 11 knobs on the main panel; some hand-held oscilloscopes also have at least one knob, such as Rohde & Schwarz's hand-held oscilloscopes RTH1000 series, there is a knob on the main panel. Some oscilloscopes beginners in the beginning to see or use the oscilloscope are not clear about the oscilloscope knob in the end what is the role. Today, Antai test editor will share with you what is the role of the knob on the oscilloscope panel? Why must there be knobs on the oscilloscope?
Different brands of oscilloscopes, or different models of the same brand of oscilloscopes, the role of each knob on the main panel is not the same. But the general function is almost the same, Antai test editor to help you sort out, oscilloscope knobs a total of 11 types and roles, different types of knobs play different roles, today we will take the Tektronix oscilloscope as an example, with a detailed introduction to Tektronix oscilloscopes different knobs for different roles.
Knob types can be divided into the following 11 types, different types of knobs play different roles.
1, scanning speed knob, it can change the oscilloscope scan line from left to right speed.
2, voltage selection knob, this button can change the input voltage to make the scan line in the oscilloscope screen Y-axis direction of the deflection.
3, up and down adjustment knob, left and right adjustment knob, it can change the position of the scanning line in the screen in both up and down, left and right directions.
4,Voltage standard knob to the clockwise direction to reach the maximum value of the state for the standard state. Other positions are non-standard.
5, scanning speed standard knob clockwise direction to reach the maximum value of the state is the standard state. Other positions are non-standard.
6, for the synchronisation knob, it can make the oscilloscope waveform stabilized.
7, the role of the selection key for the CH1 channel selection, CH2 channel selection, dual-trace role selection.
8, the role of the selection key for the CH1 signal synchronisation, CH2 signal synchronisation.
9, for the measurement of the role of the selector switch, can make the measurement at the AC DC, DC AC, and grounded GHD three states. When in
When in DC DC state, both DC and AC signals can be measured. When in AC AC state, Tektronix oscilloscope Measurement interface is strung on the internal capacitance, the DC component of the signal is blocked by the capacitance, while the AC component can be measured through the capacitance. When in the ground state, the measurement interface of the oscilloscope is short-circuited to the ground inside the Tektronix oscilloscope, and the external signal cannot enter the Tektronix oscilloscope at this time.
10, for the brightness adjustment knob, you can adjust the brightness of the image.
11, for the focus adjustment knob, the function of this knob is to make the image become fine.
