1. Nol - Buv-intizom anomaliya
Semptom: Chiqish oqimi hech qanday yuk ostida (og'iz> ± 0,2ma) ostida 4MA bazaligi qiymatidan chetga chiqadi.
Sababi: muhrlash halqasining deformatsiyasi (silikon uzukni kengaytirish darajasi> yuqori haroratda 5%) yoki egiluvchan o'rnatish (burchak> 5 daraja).
Qaror: ftororberli muhrlash halqasi (harorat qarshiligi> 200 daraja) bilan almashtiring va o'rnatilgan sirtni ko'tarish uchun lazer darajasini ishlating.
2. Elektromagnit aralashuv
Simptom: 50 / 100Hz quvvat chastotasi bilan kalibrlash signallari (o'zgaruvchan> ± 0,5m)
Sababi: Chastota konverter kabellariga parallel ravishda (bo'shliq <20cm / 20cm) yoki ekranli qatlamning shikastlanishi (eritingga chidamliligi> 4Ō)
Qaror: Galvanizli po'lat quvurlar (devor qalinligi 1,2 mm ga teng yoki teng yoki teng bo'lgan devorga nisbatan 1,2 mm), yostiqli er osti qoplamasi bilan yoki 30 dollarga teng yoki unga teng yoki unga teng yoki unga teng ravishda) qo'shing.
3. Stressning aralashuvini o'rnatish
Semptom: sezgirlik 20% -30%, linerlik <85% ga kamayadi.
Sababi: notekis Boltli moment (dement> ± 2 mynir) yoki etarli darajada tekislik (qo'pollik raisi nisbati 3,2 mmm).
Qaror: asta-sekin zinapoyalar (6n → · → 9 → 12 · m m) va 1,6 mkm dan kam yoki unga teng ravishda bog'lab qo'ying.
4
Semptom: nol - ofset> haroratning har 10 darajasining 0,5% dan oshadi.
Reason: Charge output type sensor not selected in high-temperature environment (>80 daraja) yoki PCB kompensatsiyalash ishlari olib borilishi.
Qaror: 150 daraja (masalan, St5484E-121 seriyali kabi) zaryadlash modeliga o'tish (10 darajadan 10 darajaga) {} ± 1% ±} ±} ± 1% bo'lishi kerak)
Semptomlar: Bug'doy tosh ko'prikni oching, chiqish signali nolga tushadi.
Cause: Electrostatic discharge from the human body (>5000V) sezgir elementni buzadi.
Qaror: Ishlatishdan oldin - statik bo'shliq tasmasi (10-sinf) statik bo'shliq tasma (1MŌ) klassorni (ESD qarshilik 8000V ga teng) tanlang.
6. Kalibrlash uskunalari xatosi
Symptoms: Non-linear error still >Bir nechta kalibrlashdan keyin 2%.
Sabab: Belgilangan tebranish stoli yordamida (aniqlik)<±1%) or neglecting high-frequency ranges (e.g., >10Xz).
Qaror: Kalibrlash uchun to'liq chastota oralig'ini qoplaydigan sertifikatlangan tebranish stoli (aniqlik ± 0,5%) dan foydalaning.
