Ubufatanye
UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Oscilloscope: Two-Channel Digital, with a Delay per Channel and a Common Delay (Anritsu, US 4,727,288, 1988)
A two-channel digital oscilloscope. Each channel has its own converter and delay circuit. One knob, with a main and a sub button, sets the delays. The sub button shifts only the sub channel's wave, so you can line it up against the main one. The main button shifts both waves together and keeps the gap between them.
Result: a 2-channel digital oscilloscope that can move both traces along the time base without losing their phase difference.
Source: K. Nakatsugawa et al. (Anritsu), US 4,727,288 (1988). Unknown: sample rate, bandwidth, memory size and the display. Picture: the patent drawing.
Impuguke
Unknown
Amabwiriza
1
1
Convert the two channels
Convert the two channels
Bring the main channel and the sub channel each to its own analog-to-digital converter. Ours: BNC sockets. Not given: the sample rate, the bandwidth.
Ibikoresho by'iyi ntambwe:
Igihindura analogi muri dijitali2 main and sub converters
Ibikoresho byo guhuza koakisiyale (BNC / SO-239)1 input socketsIbikoresho bikenewe:
Icyuma cyo gusudira
Igikoresho cyo gukuramo igifuniko cy'insinga2
2
Delay, store and display
Delay, store and display
Pass each channel's digital signal through its own delay circuit, whose delay is set by its own delay value setting device. Store both delayed signals in a wave memory and show them on the display. Ours: logic ICs for the delay circuits and setting devices, IC memory, and a CRT driven through D/A converters. Not given: how the delay circuits are built, the memory size, the display.
Ibikoresho by'iyi ntambwe:
Ibyuma bito bya logique binyuranye1 delay circuits and setting devices
Ububiko bw’imizunguruko ihurijwe hamwe1 wave memory
Igihindura sigital mu analog2 display drive
Itiyo y’imirasire ya katode1 displayIbikoresho bikenewe:
Icyuma cyo gusudiraIgikoresho cyo gukuramo igifuniko cy'insinga3
3
Build the delay panel and processor
Build the delay panel and processor
Make a delay operation panel with a main switch, a sub switch and one dial, with an encoder on the dial so each turn is read as a change in its output. Connect the panel to a microprocessor with a common memory that holds the sub channel's delay S in one area and the main channel's delay M in another. Mount it all in a case with its supply. Ours: push buttons, an aluminium case, a DC supply.
Ibikoresho by'iyi ntambwe:
Buto ikandwa2 main and sub switches
Ikimenyetso cy'uruziga1 delay dial
Mikoroporoseseri1 command devicesUbubiko bw’imizunguruko ihurijwe hamwe1 common memory
Agasanduku ka alumini1 caseIbikoresho bikenewe:
Inkomoko y'amashanyarazi y'umurongo umwe
Icyuma Cyivumbura GihagazeIcyuma cyo gusudira4
4
Program the two commands
Program the two commands
When the dial turns, read the encoder change e and which switch is held. Sub switch: add e to S, set the sum in the sub channel's setting device and store it back as the new S. Main switch: add e to both M and S, set M + e in the main channel's device and S + e in the sub channel's, and store both back. The main command so moves both channels by the same amount and keeps their relative delay.
Ibikoresho bikenewe:
Icyuma cyo gusudira5
5
Compare two waves
Compare two waves
Feed two signals in. Hold the sub switch and turn the dial to slide the sub channel's wave against the main one. Then hold the main switch and turn the dial: both waves move along the time base together, with the phase difference between them unchanged. Test it with a known signal.
Ibikoresho bikenewe:
Igikora Imirongo y'AmashanyaraziIbikoresho
10- 2 main and sub convertersUmwanya
- 1 input socketsUmwanya
- 1 delay circuits and setting devicesUmwanya
- 1 common memoryUmwanya
- 2 display driveUmwanya
- 1 displayUmwanya
- Umwanya
- Umwanya
- 1 command devicesUmwanya
- 1 caseUmwanya
Ibikoresho bikenewe
5- 2 vendors sell this, none ship to you yetUmwanya
- Umwanya
Iki gishushanyo gikora
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