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Information

  • ID: 3380911
  • Uploader: redtails »
  • Date: 2019-09-26 15:04
  • Update: 2026-08-01 18:21
  • Size: 242.2 KB .jpg (480x1452) »
  • Top tagger: redtails (46)
  • Source: i.pximg.net more
  • Rating: General
  • Views: 1
  • Score: 0
  • Favorites: 0
  • Status: Active

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Media asset #1
Follower
Hmmm...
What's wrong?
It's this current sensor. According to the values it's measuring, the current coming through is varying...
so I wondered if I could do the switching with a transistor even if I don't use the arduino.
Uh-huh...
I've been worrying about what to do if I use one and it doesn't go well...
but thinking about it, I've been measuring AC, so I've been getting AC values...
I don't really understand AC...
DC makes right, after all!!
Roooarrr
※Thomas Edison
Danbooru

Artist's commentary

  • Original
  • Translated
  • がんばれ小傘さん 3212

    計算に三角関数とか出てきますしね!
    「実効値とか何!?」みたいな!

    arduinoを使っても電圧の判定に悩まされました。
    4コマでは描かないのでここに書くと、5000回くらい測定をループさせてその平均値をとりました。
    1回だけだと測るタイミングによって数値が違うんですよ!
    交流ですから!
    おのれニコラ・テスラ!

    2乗平均しないと値がほぼ0になります。
    交流ですので!
    arduinoでは実際は0~5ボルトしか測れないので2.5ボルトほど値にゲタを履かせましたが(^^;)

    Hang in There, Kogasa-san 3212

    There are trig functions and all coming up in the calculations! I'm was all like "What the heck's a 'root mean squared value'!?"

    Even if I used an arduino, determining the voltage worried me. I didn't draw it in the strip, so I'll note here that I put the measurement into a loop for about 5000 times and then took the average value. Even in a single round, the value differed depending on the timing of the measurement! It's because of AC! Damn you, Nikola Tesla!

    If you don't square each values, the average becomes almost 0. Because it's AC! The arduino actually can only measure 0-5V, though, so I padded the values by about 2.5V. (^^;)

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    Follower
    Hmmm...
    What's wrong?
    It's this current sensor. According to the values it's measuring, the current coming through is varying...
    so I wondered if I could do the switching with a transistor even if I don't use the arduino.
    Uh-huh...
    I've been worrying about what to do if I use one and it doesn't go well...
    but thinking about it, I've been measuring AC, so I've been getting AC values...
    I don't really understand AC...
    DC makes right, after all!!
    Roooarrr
    ※Thomas Edison

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