示波器說明書?
19.NORM/INVERT
Selects CHI operating in normal or inverted form,this combined with I+Ⅱ can operate add or subtract for input signals.
20.C.T.
C.T.is the abbreviation of component test,it is an application of oscilloscope for testing FET.Transistor.Diode,Zener,Inductor,Capacitor etc.which are in working or damaged.
On this oscilloscope the tested component is connected in component test jacks(5),press C.T.button,the trace on CRT oftested component should be displayed the characteristic trace of components are listed in appendix.
21.TIME/DIV
Has 20 steps which ranges are form 0.2 sec/div to 0.1us/div in1:2:5 sequence.
22.X-Y
Pressing the X-Y button apply the vertical signal to the CHI or Y input connector and the horizontal signal to the CHⅡ or X input connector and the positioning on the screen can been vertically controlled by CHI position control knob.
23.HOLD OFF
Provides controls of hold off time between sweep signals to
obtain stable display when triggering an aperiodic signal.The control hold off time ranges is form 1 to 10 times of timebase.
24.VAR
1.Provides continuously variable sweep rate by a factor of 2.5.
2.Light is turned on when VAR is not at cal position.
25.X-POS(PULL*10)
1.Posotions the display horizontally.
2.pull 10:increases the dispalyed sweep rate by a factor of 10.
26.CALIBRATION(CAL)
Provides about 1 KHZ 0.2V square wave to calibrate probe frequency compensation.
27.SINGLE
Provides single sweep function after a sweep is displayed,further sweeps can't be presented until reset button is pressed again,during sweep is triggered.
28.RESET:(Reference item27)
1.In single sweep wwaiting for a coming sweep and sweep is triggered,pressed reset button to obtain a single sweep.
2.An LED located above reset button indicate single sweep is operating.
29.EXT TRIG
Form the connector the outside signal can be input whih is taken for a taken for a trigger signal.
30.TRIG SELECTOR
1.I:A sample of the signal derived form the CH1 input connector is used as a trig signal.
2.Ⅱ:A sample of the signal derived from the CHⅡ input connector is used as a trig signal.
3.I/Ⅱ:Alternative trigger which can triggter I and Ⅱ alternatively.The function is used in alternative dual trace of vertical mode operation.
4.EXT:Trigger signal is obtained form EXT TRIG connector.
31.TRIG COUPLE
1.AC-Rejects dc and attenuates signal about 100HZ,accepts signals above 100HZ.
2.LF-Accepts signals below about 10HZ.
3.HF-Accepts signals above 10HZ.
4,DC-Accepts all trigger siganls form DC to 20MHZ or greater.
不要用軟件翻譯的.此問題為19-31