honeywell電磁流量計特征,美國霍尼韋爾電磁流量計
磁路系統(tǒng)：其作用是產(chǎn)生均勻的直流或交流磁場。直流磁路用磁鐵來實現(xiàn)，
其優(yōu)點是結(jié)構(gòu)比較簡單，受交流磁場的干擾較小，
但它易使通過測量導(dǎo)管內(nèi)的電解質(zhì)液體極化，使正電極被負(fù)離子包圍，
負(fù)電極被正離子包圍，即電極的極化現(xiàn)象，并導(dǎo)致兩電極之間內(nèi)阻增大，
Magnetic circuit system: its role is to produce a uniform DC or AC magnetic field.
DC magnetic circuit with a permanent magnet to achieve,
The advantage is that the structure is relatively simple,
less interference by the exchange of magnetic field,
But it is easy to make through the measurement of the electrolyte within the catheter polarization,
so that the positive electrode is surrounded by negative ions,
為了使磁力線通過測量導(dǎo)管時磁通量被分流或短路，
測量導(dǎo)管必須采用不導(dǎo)磁、低導(dǎo)電率、低導(dǎo)熱率和具有一定機械強度的材料制成，
可選用不導(dǎo)磁的不銹鋼、玻璃鋼、高強度塑料、鋁等。
Measuring catheter: its role is to let the measured conductive liquid through.
In order to make the magnetic flux through the measurement of
the catheter when the magnetic flux is shunt or short circuit,
Measurement of the catheter must be non-magnetic,
low conductivity, low thermal conductivity and a certain mechanical strength of the material,
Optional non-magnetic stainless steel, glass steel, high-strength plastic, aluminum and so on.
Electrode: Its role is to lead out and be measured in proportion to the induced potential signal.
因而嚴(yán)重影響儀表正常工作。當(dāng)管道直徑較大時，磁鐵相應(yīng)也很大，
笨重且不經(jīng)濟，所以電磁流量計一般采用交變磁場，且是50HZ工頻電源激勵產(chǎn)生的。
測量導(dǎo)管：其作用是讓被測導(dǎo)電性液體通過。
Thus seriously affecting the normal work of the instrument.
When the pipe diameter is large, the permanent magnet is also large,
Bulky and uneconomical, so the electromagnetic flowmeter generally use alternating magnetic field,
and is 50Hz power frequency excitation generated.
電極：其作用是引出和被測量成正比的感應(yīng)電勢信號。
電極一般用非導(dǎo)磁的不銹鋼制成，且被要求與襯里齊平，以便流體通過時不受阻礙。
honeywell電磁流量計特征,美國霍尼韋爾電磁流量計
