Ukusebenzisana
UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
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.
Ingcweti
Unknown
Imiyalelo
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.
Izinto zokwakha zalesi sinyathelo:
Isiguquli Se-analogi Siye Kudijithali2 main and sub converters
Isethi yezixhumi ze-coaxial (BNC / SO-239)1 input socketsAmathuluzi adingekayo:
Insimbi yokushisela
Isihlubuli sikawaya2
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.
Izinto zokwakha zalesi sinyathelo:
Inhlanganisela yama-IC e-logic1 delay circuits and setting devices
Inkumbulo yesekethe ehlanganisiwe1 wave memory
Isiguquli sedijithali siye ku-analog2 display drive
Ishubhu ye-cathode-ray1 displayAmathuluzi adingekayo:
Insimbi yokushiselaIsihlubuli sikawaya3
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.
Izinto zokwakha zalesi sinyathelo:
Inkinobho yokucindezela2 main and sub switches
Isibhali sokuphenduka1 delay dial
I-microprocessor1 command devicesInkumbulo yesekethe ehlanganisiwe1 common memory
Ibhokisi le-aluminium1 caseAmathuluzi adingekayo:
Umthombo kagesi we-DC
Ibhola ElimileInsimbi yokushisela4
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.
Amathuluzi adingekayo:
Insimbi yokushisela5
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.
Amathuluzi adingekayo:
Isenzi SemisebeIzinto
10- 2 main and sub convertersIsibambeli
- 1 input socketsIsibambeli
- 1 delay circuits and setting devicesIsibambeli
- 1 common memoryIsibambeli
- 2 display driveIsibambeli
- 1 displayIsibambeli
- Isibambeli
- Isibambeli
- 1 command devicesIsibambeli
- 1 caseIsibambeli
Amathuluzi Adingekayo
5- 2 vendors sell this, none ship to you yetIsibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
Le blueprint yenza
Ama-blueprint ahlobene
Lama-blueprint abelana ngolwazi — amasu, izinto noma izimiso
CC0 Isizinda Somphakathi
Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.
Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.