협업
예술
뷰티 및 웰니스
공예
문화 및 역사
엔터테인먼트
환경
음식 및 음료
역공학
과학
스포츠
기술
웨어러블
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.
전문가
Unknown
안내
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.
이 단계의 재료:
아날로그-디지털 변환기2 main and sub converters
동축 커넥터 세트(BNC / SO-239)1 input sockets필요한 도구:
인두
와이어 스트리퍼2
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.
이 단계의 재료:
논리 IC 모음1 delay circuits and setting devices
집적회로 메모리1 wave memory
디지털-아날로그 변환기2 display drive
음극선관1 display필요한 도구:
인두와이어 스트리퍼3
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.
이 단계의 재료:
푸시 버튼2 main and sub switches
로터리 엔코더1 delay dial
마이크로프로세서1 command devices집적회로 메모리1 common memory
알루미늄 케이스1 case필요한 도구:
직류 전원 장치
탁상 드릴인두4
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.
필요한 도구:
인두5
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.
필요한 도구:
함수 발생기재료
10- 2 main and sub converters플레이스홀더
- 1 input sockets플레이스홀더
- 1 delay circuits and setting devices플레이스홀더
- 1 common memory플레이스홀더
- 2 display drive플레이스홀더
- 1 display플레이스홀더
- 플레이스홀더
- 플레이스홀더
- 1 command devices플레이스홀더
- 1 case플레이스홀더
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