Electronic Pulse Receiver

Kev piav qhia

Electronic Pulse Receivers (tseem hu ua pulser/receivers) tsim ultrasonic pulses, uas yog propagated rau hauv cov ntaub ntawv rau nondestructive kuaj (NDT). Lub pulser generates luv luv, loj amplitude hluav taws xob pulses (mem tes voltage) thaum nws trigger yog actuated. Cov hluav taws xob pulses no tau kis mus rau hauv ib qho ultrasonic transducer, uas hloov cov pulses hluav taws xob rau hauv luv luv ultrasonic pulses. Feem ntau cov pulser seem muaj cov zis impedance tsawg heev kom tsav lub transducer zoo dua. Lub receiver ces converts lub ultrasonic pulses rau hauv hluav taws xob pulses los ntawm txhais tau tias ntawm ib tug ultrasonic transducer. Nyob rau hauv lub receiver seem lub voltage signals uas ua los ntawm lub transducer, uas sawv cev rau cov tau txais ultrasonic pulses, yog amplified. Lub xov tooj cua amplified zaus (RF) teeb liab muaj nyob rau hauv cov zis tso zis los yog ntes rau cov teeb liab ua.

Electronic Pulse Receivers muaj ntau yam kev tswj xyuas. Thaum ua haujlwm, ntu pulser yuav siv tau ntau tus cwj pwm rau cov pulses raug xa mus. Nws tuaj yeem ua kom ntev lossis ua kom cov mem tes nyob ntawm qhov xav tau ntawm daim ntawv thov, thiab lub sijhawm siv lub mem tes rau lub transducer. Lub pulser kuj tseem tuaj yeem sib txawv ntawm cov mem tes voltage feem ntau nyob rau hauv ib qho kev qhia tshwj xeeb.
Lub receiver seem ntawm pulser/receiver tuaj yeem ua rau ntau yam kev tswj hwm ib yam nkaus. Lub receiver yog tsim los txhawb lub teeb liab (amplification) los yog nce, nrog rau kev lim cov teeb liab kom txo qis impedance thiab tsis xav cuam tshuam. Tsis tas li ntawd, lub receiver tuaj yeem ua haujlwm raws li lub teeb liab rectifier, txhawm rau kho lub teeb liab RF mus rau hauv nthwv dej tag nrho, los yog tawg rau hauv qhov zoo lossis tsis zoo ib nrab nthwv dej.

Pulser-receivers ua haujlwm nyob rau hauv ntau hom kev teev tseg uas pab txiav txim seb lawv tsim cov pulses li cas. Ob hom modal feem ntau rau pulser thiab receivers yog mem tes / ncha thiab dhau- kis tau tus mob. Nyob rau hauv hom mem tes-echo, lub transmitting transducer tau txais cov echoes uas tau rov qab los ntawm lub interface. Nyob rau hauv hom kis tau tus mob ib tug thib ob transducer yog siv los txais thiab hloov lub ultrasonic mem tes. Lwm hom kev khiav hauj lwm tsawg dua yog sab nraud pulser.

Electronic Pulse Receivers yog siv nyob rau hauv cov khoom characterization ua hauj lwm ntsuas lub suab tshaj tawm los yog attenuation, uas nyob rau hauv lem yuav correlated rau tej yam khoom xws li elastic modulus los yog grain orientation. Ua ke nrog lub rooj vag stepless thiab lub spectrum analyzer, pulser-receivers kuj siv tau los kawm cov khoom siv ntau zaus los yog ua kom pom qhov ua tau zoo ntawm ultrasonic transducers.

Pulser-Receivers tuaj yeem ntiav ib qho transducer uas ua ob qho tib si transmitter thiab receiver. Txoj hauv kev no yog hu ua Pulse-Echo lossis Transmit-Receive hom kev ua haujlwm qhov twg lub transducer tsim ib qho ultrasound pulse thiab tom qab ntawd tau txais echoes. Tus Pulser-Receiver kuj tseem yuav ntiav cov neeg xa xov thiab txais cov transducer cais uas tus thawj transducer tsim ib qho ultrasound mem tes, thiab lub transducer thib ob tau txais cov cim. Txoj hauv kev no hu ua Txoj Kev Ua Haujlwm ntawm Kev Ua Haujlwm. Txawm hais tias lub pulser-receiver tau teeb tsa li cas, lub receiver output signals ces tau txais kev siv cov oscilloscope lossis lub teeb liab digitizer xws li A / D board hauv PC.

Cim npe nrov: Tuam Tshoj hluav taws xob pulse receiver manufacturers, lwm tus neeg, Hoobkas