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xingzb2
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樓主  發(fā)表于: 2017-12-27 16:32
最近做了個(gè)氣密（泄露）檢測設備，
用了一個(gè)壓力開(kāi)關(guān)，測量范圍  -0.1——1MPa。配合FX3u+3u 4ad。（-0.1——1MPa對應0-16000）以Pa為單位，來(lái)顯示壓力。
觸摸屏上壓力測量結果會(huì )在200-400Pa的范圍內波動(dòng)，比如120000Pa——120320Pa之間跳動(dòng)，平均值取樣次數1000次。
請問(wèn)路過(guò)的高手，這種壓力波動(dòng)正常嗎？換成SMC的會(huì )不會(huì )好點(diǎn)？是不是還需要加濾波電容？大家是怎么處理的？

請大家不吝賜教，謝謝！
[ 此帖被xingzb2在2017-12-27 18:09重新編輯 ]
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1樓  發(fā)表于: 2017-12-27 19:06
FX3U的模擬量本來(lái)就坑爹，很多都配2N的模擬量模塊使用
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