Single / analog / ST16A/10 trillion oscilloscope prices Henan Zhengzhou Emi instrumentation agent 0371-66227105 55676313 66959363 www.5117hm.com 
 Analog oscilloscope, using an analog circuit (CRT, which is based on the electron gun) electron emission electron gun to the screen, focusing electrons emitted by the electron beam formation, and hit the screen, the screen's inner surface is coated with fluorescent material, so that e beam will hit the send light to the point. 
 Oscilloscopes and other instruments, like (such as multimeter, etc.), before use are necessary to correct it first. The so-called correction of the oscilloscope is the scope of the original waveform debugging out right before the test. In other words, out of the correction waveform to the oscilloscope itself with the same set of parameters (these parameters are usually calibrated test points marked out). To GW GOS-602 oscilloscope, for example (left): in its lower left corner of the panel is to ask the correction waveform parameters such as voltage is 2V, the frequency is 1KHz, etc. (right), is to ask the oscilloscope calibration waveform (or are , cosine wave, square wave) voltage peak value of 2V, the frequency of 1KHz. But usually can not directly show the oscilloscope waveform frequency, but according to the frequency and period of the conversion (T = 1 / f) to the frequency into a cycle, then the periodic wave is the frequency (frequency 1KHz equivalent period 1mS). Waveform in the process of correction, in order to facilitate observation of the waveform, the waveform should first regulate the center, which is connected to the input mode between signal GND of the switch position (left). Then if the normal power, should be able to show a level of bright lines; If not, it would be adjusted up and down POSITION, DC BALT and INTER up. Which, POSITION is adjusted up and down buttons waveform (middle), DC BAL is the center of the level of bright-line adjustment, INTER is a brightness adjustment, if the imbalance emerged bright line (X axis), then no sense to use a screwdriver adjustment In FOCUS near TEACE ROTATION (bottom right), after adjustment by FOCUS to convergence to an optimal state