Umgomo wohlelo lokusebenza lwenzwa yokucindezela

1. Izinhlobonhlobo

Kunezinhlobo eziningi zezinzwa zemishini, njengenzwa yokucindezela kwe-resistance gauge, inzwa yokucindezela kwe-semiconductor strain gauge, inzwa ye-piezoresistive pressure, inductive pressure sensor, capacitive pressure sensor, resonant pressure sensor kanye ne-capacitive acceleration sensor. Kodwa esetshenziswa kakhulu inzwa yokucindezela kwe-piezoresistive, enenani eliphansi kakhulu, ukunemba okuphezulu kanye nezici ezingcono zomugqa.

2. Ukuqonda

Kunzwa yokucindezela kokumelana ne-decompression, siqala ukuqonda igeji yohlobo lokumelana le nto. I-resistance gauge ye-resistance gauge iyisisetshenziswa esibucayi esiguqula ukuguquka kobunzima engxenyeni elinganisiwe ibe isignali kagesi. Ingenye yezingxenye eziyinhloko ze-piezoresistive strain sensor. Amageji ohlobo lokumelana asetshenziswa kakhulu ama-metal resistance gauge nama-semiconductor strain gauges. Kunezinhlobo ezimbili zegeji ye-metal resistance gauge: i-wire strain gauge kanye ne-metal foil strain gauge. Ngokuvamile, i-strain gauge iboshelwa ngokuqinile ku-matrix ye-mechanical strain nge-ejenti yebhondi ekhethekile. Lapho ukucindezeleka kwe-matrix kushintsha, i-resistance gauge ye-resistance gauge nayo iyawohloka, ukuze inani lokumelana ne-strain gauge lishintshe, kanye ne-voltage esetshenziswa ekushintsheni kokumelana. Inani lokumelana lale gauge yobunzima ngokuvamile lincane lapho licindezelwa, futhi lesi sikalo sokulinganisa ngokuvamile sakhiwa ibhuloho le-A strain, futhi likhuliswa yi-amplifier yensimbi elandelayo, bese idluliselwa kumjikelezo wokucubungula (imvamisa ukuguqulwa kwe-A/D kanye CPU) isibonisi noma indlela yokuphatha.