Iyo yekurapa ultrasound probe chikamu chakakosha chekurapa ultrasound chiridzwa. Nheyo yayo huru ndeye kushandisa kuparadzira uye kuratidza maitiro eiyo ultrasonic mafungu mumatishu emunhu kuwana mifananidzo kuburikidza nekutumira uye kugamuchira mabasa eiyo probe kuwana kuongororwa kwekurapa uye kurapwa.
Nheyo dzekurapa ultrasound probes dzinogona kukamurwa kuita zvinotevera zvinhu:
1. Piezoelectric effect: Medical ultrasound probes inowanzoshandisa piezoelectric zvinhu, zvakadai se quartz crystals, ceramics, etc. Kana zvichikurudzirwa nemunda wemagetsi, zvinhu izvi zvinopinda piezoelectric effect, kureva, mechanical deformation. Uchishandisa mhedzisiro iyi, iyo piezoelectric zvinhu inogona kuzungunuswa kuburikidza nemagetsi emunda mafambiro, nekudaro ichigadzira mafungu e ultrasonic.
2. Pulse wave emission: Medical ultrasound probe inoburitsa masaisai e ultrasonic kuburikidza nemafungu emhepo. Kana chinhu chikanakidzwa nendima yemagetsi, inodedera zvine mechanical, ichigadzira ultrasonic pulses. Chimiro chepulse uye frequency ye vibration zvinoenderana neprobe dhizaini uye drive voltage.
3. Pulse wave reception: Pamusoro pekutumira mafungu e ultrasonic, mishonga ye ultrasound probes inoshandiswawo kugamuchira zviratidzo zvinoratidzwa zve ultrasonic. Kana masaisai e ultrasound achipfuura nepakati pematishu, anotaridzwa uye anopararira achidzokera kune inogashira chinhu che probe. Chinhu chinogashira chinoshandura iyo mechanic vibration kuita chiratidzo chekuchaja, icho chinozoshandurwa kuita mufananidzo kuburikidza nechiratidzo chekugadzirisa dunhu.
4. Ruzha danda hunhu: Iyo geometry uye kurongeka kwekutumira uye kugamuchira zvinhu zvezvekurapa ultrasound probe zvinokanganisa zvakananga maitiro eruzha. Sound beam inoreva simba density kugovera kwemasaisai e ultrasonic ari kupararira mukati. Medical Ultrasound probes inowanzo shandisa tekinoroji yekutarisa kuvandudza kugona kweiyo ruzha, zvichikonzera mifananidzo yakajeka.
5. Doppler effect: Medical ultrasound probes inogonawo kushandisa Doppler effect kuyera kukurumidza uye nzira yemvura. Kana masaisai e ultrasonic asangana nekufamba kwemvura, frequency shift inoitika, inoenderana nekumhanya kwemvura. Nekuyera hukuru uye kutungamira kwema frequency shift, ruzivo nezvekufamba kwemvura kunogona kuwanikwa.
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Nguva yekutumira: Jan-18-2024
