Dastur of OWON osiloskop in automotive sensors (1)
% e2% 80� Using OWON PC virtual ossilyoskop to test avtomobil magnetoelektrik krankshaft pozitsiya sensori
Bilan ortib borayotgan avtomobillar mashhurligi 2c the use of automotive elektron sensorlar ko'proq va ko'proq. Qanday qiladi an ossilyoskop o'lchov bu sensorlar on the car? Let's use OWON virtual oscilloscope to see how use it.
Tayyorlash a daftar kompyuter va an OWON VDS2064 raqamli ossiliskop% 2c ochiq kompyuter, install the PC software, connect the wire, and start to test the magnetoelectric crankshaft position sensor.
magnetoelektrik krankshaft pozitsiya sensor mumkin o'z signalini qo'shimcha kuchlanish ta'minlamasdan hosil qiladi. qachon metall g'ildirak 2c aylanadi 2c magnit maydon o'zgaradi va the voltage hosil bo'lgan in da o'zgaradi o'zgaradi.
magnetoelektrik krankshaft sensor ishlaganda 2c the amplitudasi aniq bir xil bo'lmaydi. qachon tezlik 2c artsa amplituda artadi. At the time, u shuningdek o'rtasidagi farqni aks ettiradi the four stages of engine operatsiya, ya'ni, iste'mol, iste'mol, siqish, ish, va egzoz. Shuning uchun, o'lchash to'lqin shakli of a krankshaft sensor bilan an ossilyop butunlay aks ettirishi mumkin butunlay aks ettirish mumkin mexanik operatsiya normal bo'lishidan qat'iy nazar. Bu erda normal. Bu erda is an misol.
Bu the waveform of a Weichai WP7 Zoomlion kran motor uch oy ta'mirlashdan keyin. The engine can not accelerated to 1900 rpm. As As uzoq as the engine pressure relief valve is ochilgan at 1900 rpm, the engine turn to 1500 rpm.
To'rt oydan so'ng, the eng yuqori tezlik of the engine is 1500 rpm. The waveform o'lchanadi by OWON VDS2064 virtual ossilyoskop quyidagicha bo'ladi. Biz topish ning amplitudasi farqi to'lqin shakli yanada kattalashtirilgan.
signal paneli ga qarang agar bo'lsa har qanday anormallik. U aniqlanadi dvigatel krankshaft oldinga va orqaga yoki yuqoriga va pastga. Pry the the front belt pulley of the crankshaft with flat crow%2, va harakat tozaligi juda kichik, shunday topiladi ki 1 krankshaft 22holding the Bush" bo'ldi 22holding the Bush". As a result, the yuqori va pastki runout of the crankshaft juda katta..
Ba'zan u kerak emas aniqlash uchun birlamchi va ikkilamchi to'lqinli to'lqinlar of yonish to bilvosita hakam the misfire of a certain cylindr. Assuming that certain cylinder does 2c u mumkin ish qil qachon kerak kerak ish uchun ish, natijada krankshaft tezligining pasayishi kuzatiladi. Bu mumkin mumkin to'lqin shakli da ning to'lqin shakli da krankshaft pozitsiya sensori..
In the circuit diagramma, the two terminals of the magnetoelektrik crankshaft position sensor are different. For ECU, these two terminals cannot be connected in reverse.
Agar ulanish teskari bo'lsa, normal ulanish farq dan farq qiladi the g'ayritabiiy bog'lanish by 22half a tish". Bu sabab sabab the timing error, or the ECU o'ylaydi vaqt noto'g'ri.
Quyidagi figura 1 katta devor pikap Fengjun 6 mamlakat 5 model. The crankshaft sensor uses an ossilyoskop to lchash the normal waveform and the waveform after the terminal is teskari ulanadi.
Foydalanish OWON VDS2064 PC virtual ossilyoskop to lchash the waveform, the details of the waveform can clear seen through the computer screen, qaysi tahlil uchun qulay hisoblanadi. It is a yaxshi yordamchi uchun avtomobil ma'muriyati xodimlari..
OWON VDS Series PC Ossilyoskop
Avtomobil ta'mirlash muhandislari juda fond of PC virtual ossiloskop in ularning ishlash jarayonida. Uning ultra-kichik tanasi uni ko'tarish osonroq qiladi va foydalanish. Biroq, eng of the PC virtual ossiloskoplar on the market have been have 1 ko'proq yoki kamroq o'chirilgan bilan solishtirilgan bilan taqqoslangan ish stoli osiloskoplar, bu 2c bu qiladi muhandislar uchun bajarish uchun bajarish normal o'lchov ishi qiyin qiladi. Qachon portativligi va ishlashi mojarosi, qanday tanlash kerak qanday 3f Siz olishingiz mumkin a ko'rinish ishat OWON Lilliput's VDS PC ossilyoskop.
- Up to 100MHz tarmoqli kengligi, va max 1GS/s real-time sample rate
% 7b% 7b0}}M record length
- Doʻstona UI: FFT, or X-Y, va waveform 2 views displayed
% c2� on the same screen
- Ko'p trigger opsiyasi: edge, video, slope, pulse, va muqobil
- USB izolyatsiya - kam signal inferentsiya, ko'proq PC himoyasi
- USB avtobus kuchlanish, va LAN masofadan boshqarish (ixtiyoriy)
- Ultra-nozik tana dizayn, oson portativligi
