Kenwood CS-1022 Instruction Manual

Also see for CS-1010: Instruction manual

Adjust to the vertical scalewith <» POSITIONRise timeFig. 18[EXAMPLE]For the example, the horizontal distance is 4.0 divisions.The SWEEP TIME/DIV is 2 us. (See Fig. 18)Substituting the given value:Risetime = 4.0 (div) x 2 (us) = 8sRisetime and falltime can be measured by making use ofthe alternate step 3 as described below as well.4. Use the <» POSITION control to set the 10% point tocoincide with the center vertical graduation line andmeasure the horizontal distance to the point of the in-tersection of the waveform with the center horizontalline. Let this distance be D,. Next adjust the waveformposition such that the 90% point coincides with the ver-tical centerline and measure the distance from that lineto the intersection of the waveform with the horizontalcenterline. This distance is D, and the total horizontaldistance is then D, plus D, for use in the above relation-ship in calculating the rise time or falltime.Using the formula:Risetime = (D, + D,) (div) x (SWEEP TIME/DIVsetting)x ‘x 10 MAG”’ value! (1/10)Adjust 90% point to the centerand measure D,.Adjust 10% pointto the center andmeasure D,.Rise timeFig. 19[EXAMPLE]For the example, the measured D, is 1.8 divisions while D,is 2.2 divisions. If SWEEP TIME/DIV is 2 us we use thefollowing relationship. (See Fig. 19)Substituting the given value:Risetime= (1.8 + 2.2) (div) x 2 (us) =8 usTIME DIFFERENCE MEASUREMENTS (Unapplied toCS-1020 and 1010)This procedure is useful in measurement of time dif-ferences between two signals that are synchronized to oneanother but skewed in time.Procedure:1. Apply the two signals to CH1 and CH2 INPUT jacks. Setthe vertical MODE to either ALT or CHOP mode.Generally for low frequency signals CHOP is chosenwith ALT used for high frequency signals.2. Select the faster of the two signals as the SOURCE anduse the VOLTS/DIV and SWEEP TIME/DIV to obtain aneasily observed display.Set the VARIABLE to CAL.3. Using the 7 POSITION control set the waveforms to thecenter of the CRT display and use the <» POSITIONcontrol to set the reference signal to be coincident witha vertical graduation line.4. Measure the horizontal distance between the twosignals and multiply this distance in divisions by theSWEEP TIME/DIV setting.If’’x10 MAG” is being used multiply this again by 1/10.Using the formula:Time= Horizontal distance (div) x (SWEEP TIME/DIVsetting) x ‘’ x 10 MAG”’ value (1/10)[EXAMPLE]For the example, the horizontal distance measured is 4.4divisions. The SWEEP TIME/DIV is 0.2 ms. (See Fig. 20)Substituting the given value:Time = 4.4 (div) x 0.2 (ms)=0.88 mstt TT TReference signal Comparison signalTime differenceFig. 2023