Ndi mitundu yanji ya masensa am'madzi?
Nayi mitundu 7 ya masensa amadzimadzi kuti muwerenge:
1. Optical madzi mlingo sensa
Optical sensor ndi yolimba-state. Amagwiritsa ntchito ma infrared ma LED ndi ma phototransistors, ndipo sensor ikakhala mlengalenga, imalumikizidwa bwino. Pamene mutu wa sensa umizidwa mumadzimadzi, kuwala kwa infrared kudzathawa, zomwe zimapangitsa kuti kusintha kusinthe. Masensa amenewa amatha kudziwa kupezeka kapena kusapezeka kwa pafupifupi madzi aliwonse. Sakhudzidwa ndi kuwala kozungulira, samakhudzidwa ndi thovu akakhala mumlengalenga, ndipo samakhudzidwa ndi thovu laling'ono likakhala mumadzimadzi. Izi zimawapangitsa kukhala othandiza pazochitika zomwe kusintha kwa boma kuyenera kulembedwa mwachangu komanso modalirika, komanso m'malo omwe amatha kugwira ntchito modalirika kwa nthawi yayitali popanda kukonza.
Ubwino: kuyeza kosalumikizana, kulondola kwambiri, komanso kuyankha mwachangu.
Zoipa: Osagwiritsa ntchito padzuwa, nthunzi yamadzi imakhudza kulondola kwa muyeso.
2. Capacitance madzi mlingo sensa
Ma switch a capacitance amagwiritsa ntchito ma elekitirodi a 2 (omwe nthawi zambiri amapangidwa ndi chitsulo) pozungulira, ndipo mtunda pakati pawo ndi waufupi kwambiri. Elekitirodi ikamizidwa mumadzimadzi, imamaliza kuzungulira.
Ubwino: angagwiritsidwe ntchito kudziwa kukwera kapena kugwa kwa madzi mumtsuko. Mwa kupanga elekitirodi ndi chidebe kutalika chomwecho, capacitance pakati maelekitirodi akhoza kuyeza. Palibe capacitance kutanthauza palibe madzi. Mphamvu yathunthu imayimira chidebe chathunthu. Miyezo yoyezedwa ya "zopanda kanthu" ndi "zodzaza" ziyenera kulembedwa, ndiyeno 0% ndi 100% mita yofananira imagwiritsidwa ntchito kuwonetsa mulingo wamadzimadzi.
Zoipa: Kuwonongeka kwa electrode kudzasintha mphamvu ya electrode, ndipo iyenera kutsukidwa kapena kusinthidwanso.
3. Kukonza kachipangizo ka foloko
Tuning fork level gauge ndi chida chosinthira chamadzimadzi chopangidwa ndi mfundo ya foloko. Mfundo yogwirira ntchito yosinthira ndikuyambitsa kugwedezeka kwake kudzera mu resonance ya kristalo ya piezoelectric.
Chinthu chilichonse chimakhala ndi ma frequency a resonant. Mafupipafupi a chinthucho amagwirizana ndi kukula, misa, mawonekedwe, mphamvu… ya chinthucho. Chitsanzo cha ma frequency a resonant a chinthucho ndi: chikho chimodzi chagalasi motsatana Kudzaza madzi akutali, mutha kuyimba nyimbo zoyimba pogogoda.
Ubwino: Itha kukhala yosakhudzidwa kwenikweni ndi kutuluka, thovu, mitundu yamadzimadzi, ndi zina zambiri, ndipo palibe kuwongolera komwe kumafunikira.
Zoyipa: Sizingagwiritsidwe ntchito pazowonera zowonera.
4. Diaphragm fluid level sensor
Kusintha kwa diaphragm kapena pneumatic level kumadalira kuthamanga kwa mpweya kukankhira diaphragm, yomwe imagwira ntchito ndi micro switch mkati mwa thupi lalikulu la chipangizocho. Pamene mulingo wamadzimadzi ukuwonjezeka, kuthamanga kwamkati mu chubu chodziwikiratu kumawonjezeka mpaka microswitch itatsegulidwa. Pamene mlingo wamadzimadzi ukutsika, mphamvu ya mpweya imatsikanso, ndipo chosinthira chimatsegulidwa.
Ubwino wake: Sipafunika mphamvu mu thanki, itha kugwiritsidwa ntchito ndi mitundu yambiri yamadzimadzi, ndipo chosinthira sichingakhudze zamadzimadzi.
Kuipa kwake: Popeza ndi chipangizo chomakina, chimafunika kuchikonza pakapita nthawi.
5.Sensa yamadzi yoyandama
Chosinthira choyandama ndiye sensor yoyambira. Ndi zida zamakina. Choyandama chobowoka chimalumikizidwa ndi mkono. Pamene choyandamacho chikukwera ndikugwera mumadzimadzi, mkono umakankhidwira mmwamba ndi pansi. Mkono ukhoza kulumikizidwa ndi maginito kapena makina osinthira kuti udziwe / kuzimitsa, kapena ukhoza kulumikizidwa ndi sikelo yoyezera yomwe imasintha kuchokera kudzaza mpaka yopanda kanthu pamene mulingo wamadzimadzi ukutsika.
Kugwiritsa ntchito masiwichi oyandama pamapampu ndi njira yotsika mtengo komanso yothandiza yoyezera kuchuluka kwa madzi mu dzenje lopopera la pansi.
Ubwino: Chosinthira choyandama chimatha kuyeza mtundu uliwonse wamadzimadzi ndipo chingapangidwe kuti chizigwira ntchito popanda magetsi.
Zoipa: Ndi zazikulu kuposa zosinthira zina, ndipo chifukwa ndi makina, ziyenera kugwiritsidwa ntchito mobwerezabwereza kusiyana ndi masiwichi ena.
6. Akupanga madzi mlingo sensa
The akupanga mlingo n'zotsimikizira ndi digito mlingo n'kofunika kulamulidwa ndi microprocessor. Mu muyeso, kugunda kwa ultrasonic kumatulutsidwa ndi sensa (transducer). Phokoso la phokoso limawonetsedwa ndi madzi amadzimadzi ndikulandiridwa ndi sensa yomweyo. Imasinthidwa kukhala chizindikiro chamagetsi ndi kristalo ya piezoelectric. Nthawi pakati pa kufalitsa ndi kulandira phokoso la phokoso limagwiritsidwa ntchito powerengera Muyeso wa mtunda wopita pamwamba pa madzi.
Mfundo yogwira ntchito ya sensa yamadzi a akupanga ndi yakuti ultrasonic transducer (probe) imatumiza phokoso la phokoso lapamwamba kwambiri likakumana ndi pamwamba pa mlingo woyezera (zinthu), zimawonekera, ndipo echo yowonekera imalandiridwa ndi transducer ndi kusinthidwa kukhala chizindikiro chamagetsi. Nthawi yofalitsa phokoso la phokoso. Zimayenderana ndi mtunda kuchokera ku phokoso la phokoso kufika pamwamba pa chinthucho. Ubale pakati pa mtunda wa kufalikira kwa mafunde S ndi liwiro la mawu C ndi nthawi yotumizira mawu T zitha kuwonetsedwa ndi chilinganizo: S = C × T / 2.
Ubwino: muyeso wosalumikizana, sing'anga yoyezera imakhala yopanda malire, ndipo itha kugwiritsidwa ntchito kwambiri kuyeza kutalika kwa zakumwa zosiyanasiyana ndi zida zolimba.
Zoipa: Kulondola kwa kuyeza kumakhudzidwa kwambiri ndi kutentha ndi fumbi la malo omwe alipo.
7. Mulingo wa radar
Mulingo wamadzimadzi a radar ndi chida choyezera mulingo wamadzimadzi potengera nthawi yoyenda. Mafunde a radar amathamanga pa liwiro la kuwala, ndipo nthawi yothamanga ikhoza kusinthidwa kukhala chizindikiro cha mlingo ndi zipangizo zamagetsi. Kufufuzako kumatumiza ma pulse othamanga kwambiri omwe amayenda pa liwiro la kuwala mumlengalenga, ndipo ma pulse akakumana pamwamba pa zinthuzo, amawonekera ndikulandiridwa ndi wolandila mu mita, ndipo chizindikiro cha mtunda chimasinthidwa kukhala mulingo. chizindikiro.
Ubwino: osiyanasiyana ntchito, osakhudzidwa ndi kutentha, fumbi, nthunzi, etc.
Zoyipa: Ndizosavuta kutulutsa echo yosokoneza, yomwe imakhudza kulondola kwa kuyeza.
Nthawi yotumiza: Jun-21-2024