Moyandikana sensa: mbali ndi mwayi

Mu moyo watsiku ndi tsiku, moyandikana sensa ntchito kulikonse. Pa magalimoto zimathandiza ndi magalimoto, ndi conveyor amalondola yotumiza katundu mu foni yamakono Amatseka keypad ndi pambuyo ntchito chipangizo khutu lanu. Tsiku ndi tsiku, ndi chozizwa cha luso, nawonso, lapeza malo ake. Zipangizo zoyendera magetsi amenewa amene anaika mu malo lophimba Mwachitsanzo, pa msewu. Mwamsanga pamene inu mubwere kunyumba, kuwala basi madzulowo, ndipo patapita kanthawi kuchokera. Mu ndondomeko zotchinjiriza n'zosatheka kuchita popanda masensa.

Kusiyanitsa moyandikana sensors mitundu: capacitive, inductive, kuwala, akupanga, mayikirowevu, magnetically, etc. pyrometric Linanena bungwe Buku anafotokoza chipangizo makamaka kumadalira mfundo zake opaleshoni.

Capacitive kachipangizo njira zimagwiritsa ntchito mu ndondomeko zotchinjiriza chifukwa detects kufika kwa chinthu ndi kupatsira sindingakhoze. Izi chimasiyanitsa izo kwa akupanga kapena infuraredi analogs poona mtunda potsata kwambiri padziko chinthu. Mwachitsanzo, infuraredi moyandikana sensa kuyankha matenthedwe - infuraredi - mitanda. zipangizo akupanga zimatulutsa poyamba, ndiyeno amalandira cheza anasonyeza kuchokera pamwamba. Ndi mfundo ya opareshoni, izi kachipangizo moyandikana ndi ofanana kwambiri locator lapansi. Ndipo ngati onse zabwino, kuchokera pamalo molimba anasonyeza mbendera ndi wabwino, koma kwa zofewa - osati kwambiri. Ndipo tizilomboto akhoza kuzilambalala izo, mwangozivekapo chinachake zofewa. Pazifukwa izi, ndi bwino ntchito masensa mtundu capacitive, makamaka zipangizo kusonyeza pofuna kuteteza zinthu zofunika ndi lalikulu. Mu nkhani iyi, mlongoti waya mu mawonekedwe a horizontally wokwera mpanda ndi olumikiza unit zazikulu kudzera yaing'ono mphamvu capacitor.

masensa Capacitive nawonso anabwera ku mitundu yosiyanasiyana:

1. masensa pa capacitors lapansi. Kuti ziwembu otsiriza ali tcheru mbali ya chipangizo. Mtundu ntchito chitetezo chokwanira kumene osafunika ndi mkulu tilinazo Mwachitsanzo, mu Chenjezo kukhudza zitsulo zinthu.

2. masensa Capacitive ntchito pafupipafupi kulamulira dera. Mtundu wa chipangizo zochepa atengeke wailesi chopinga ndiponso crosstalk kuposa zipangizo ndi capacitors. Izi mawonekedwe angagwiritsidwe ntchito mabanja chifukwa kutembenukira magetsi, ndi zina zotero. N.

3. masiyanidwe-capacitive kachipangizo. Amasiyana pamwamba kuti iwo ndi tinyanga awiri mmalo mwa mmodzi, amene amapereka zotsatira yimitsira nyengo (mvula, matalala, mkuntho, chisanu ndi zina zotero. D.). ntchito yawo ntchito ndi osiyana masensa pa LC-dera. Kusiyana kokha kuti muyenera kukhazikitsa mlongoti wina.

4. Resonant Capacitive masensa. choyambitsa chizindikiro amapezeka mu dera athandizira, amene ali mu mkhalidwe pang'ono akamakonda ndi kulemekeza mkulu-pafupipafupi chizindikiro jenereta. Popeza chikugwirizana dera ntchito mphamvu ka capacitor ndi (chinthu chofunika kwa kukana mu dera la). masensa akhoza kugwiritsidwa ntchito ponena za m'munda wa m'midzi ndi m'mizinda, koma osati kwambiri ndi magwero wamphamvu wailesi.