hydz 40KHZ ultrasonic sensor
cov ntsiab lus ntawm cov khoom
Cov yam ntxwv
A. Yam ntxwv
1.1) Qhib cov qauv thiab siv cais
1.2) Kev sib cog lus thiab lub teeb yuag
1.3) Kev rhiab heev thiab suab nrov
1.4) Siv hluav taws xob tsawg dua
1.5) Kev ntseeg siab siab
B. Cov lus siv thev naus laus zis
| Tsis yog. | Khoom | Chav tsev | Cov Lus Qhia Tshwj Xeeb |
| 1 | Kev Tsim Kho |
| Qhib |
| 2 | Siv txoj kev |
| Lub Tshuab Xa/Tus Txais |
| 3 | Zaus Nominal | Hz | 40K |
| 4 | Kev rhiab heev |
| ≥-68V/u Par |
| 5 | SPL | dB | ≥115 (10V / 30cm / nthwv dej sine) |
| 6 | Kev coj ncaj qha |
| 60deg |
| 7 | Muaj peev xwm | pF | 2500 ± 20% @ 1KHz |
| 8 | Qhov hluav taws xob nkag tau tso cai | Vp-p | 150 (40kHz) |
| 9 | Ntau yam nrhiav tau | m | 10 |
| 10 | Kub Ua Haujlwm | ℃ | -40….+85 |
C. Kos duab (Cim: T transmitter, R receiver)
Kev Taw Qhia Txog Ultrasonic Sensors
Cov sensors ultrasonic yog cov sensors tsim los ntawm kev siv cov yam ntxwv ntawm ultrasound. Cov sensors ultrasonic siv cov nyhuv piezoelectric ntawm piezoelectric ceramics. Thaum lub teeb liab hluav taws xob raug siv rau lub phaj piezoelectric ceramic, nws yuav deform, ua rau lub sensor co thiab tso tawm cov nthwv dej ultrasonic. Thaum ultrasound ntaus ib qho teeb meem, nws cuam tshuam rov qab thiab ua rau ntawm lub phaj piezoelectric ceramic los ntawm lub sensor. Raws li cov nyhuv piezoelectric rov qab, lub sensor ultrasound tsim cov teeb liab hluav taws xob tso tawm. Los ntawm kev siv lub hauv paus ntsiab lus ntawm qhov ceev ntawm cov nthwv dej ultrasonic hauv tib lub nruab nrab, qhov deb ntawm cov teeb meem tuaj yeem txiav txim siab raws li lub sijhawm sib txawv ntawm kev xa thiab txais cov teeb liab. Cov nthwv dej ultrasonic yuav tsim cov suab rov qab tseem ceeb thaum lawv kov cov khoom tsis huv lossis cov interfaces, thiab cov teebmeem Doppler thaum lawv kov cov khoom txav mus los. Yog li ntawd, cov sensors ultrasonic tau siv dav hauv kev lag luam, kev siv pej xeem, kev tiv thaiv lub tebchaws, biomedicine, thiab lwm yam teb.
Cov ntawv thov
1. Tsheb radar tiv thaiv kev sib tsoo, ultrasonic ranging system, ultrasonic proximity switch;
2. Cov khoom siv tswj chaw taws teeb rau cov khoom siv hauv tsev, cov khoom ua si, thiab lwm yam khoom siv hluav taws xob;
3. Cov khoom siv ultrasonic emission thiab txais tos rau kev tiv thaiv tub sab thiab kev tiv thaiv kev puas tsuaj.
4. Siv los tsav cov yoov tshaj cum, kab, tsiaj txhu, thiab lwm yam.
Cov Ntawv Ceeb Toom
1. Lub ultrasonic emitter emits ib lub ultrasonic beam ntawm lub kaum sab xis 60 degree sab nraud, yog li yuav tsum tsis muaj lwm yam teeb meem ntawm qhov kev soj ntsuam thiab cov khoom ntsuas.
2. Lub ultrasonic module ntsuas qhov nrug ntsug ntawm cov khoom ntsuas thiab qhov kev soj ntsuam, thiab qhov kev soj ntsuam yuav tsum tau khaws cia rau ntawm cov khoom ntsuas thaum lub sijhawm ntsuas.
3. Kev ntsuas ultrasonic yog cuam tshuam los ntawm qhov ceev ntawm cua ib puag ncig, qhov kub thiab txias, thiab lwm yam.
Tej teeb meem uas yuav tshwm sim
1. Vim yog qhov cuam tshuam ntawm qhov tsis sib xws ntawm cov khoom ntsuas, lub kaum sab xis ntawm kev cuam tshuam, qhov ceev ntawm cua thiab qhov kub ntawm ib puag ncig, thiab ntau qhov kev cuam tshuam, cov nthwv dej ultrasonic yuav ua rau cov ntaub ntawv ntsuas yuam kev ntau ntxiv.
2. Vim yog cov yam ntxwv ntawm ultrasound hauv kev ntsuas qhov chaw dig muag, yog tias qhov chaw ntsuas hloov pauv thiab cov ntaub ntawv tau txais tseem tsis hloov pauv thaum ntsuas ze, nws qhia tau tias qhov chaw dig muag ntsuas tau nkag mus.
3. Yog tias tsis muaj cov ntaub ntawv ntsuas rov qab los thaum lub module ntsuas cov khoom nyob deb, nws yuav nyob sab nraud ntawm qhov ntsuas lossis lub kaum sab xis ntsuas yuav tsis raug. Lub kaum sab xis ntsuas tuaj yeem hloov kho kom haum.