LEADER 02018oam 2200397zu 450 001 996206263203316 005 20210807000234.0 010 $a1-5090-9868-2 035 $a(CKB)1000000000022769 035 $a(SSID)ssj0000454430 035 $a(PQKBManifestationID)12192111 035 $a(PQKBTitleCode)TC0000454430 035 $a(PQKBWorkID)10397899 035 $a(PQKB)10260246 035 $a(NjHacI)991000000000022769 035 $a(EXLCZ)991000000000022769 100 $a20160829d2005 uy 101 0 $aeng 135 $aur||||||||||| 181 $ctxt 182 $cc 183 $acr 200 00$a2005 IEEE Ultrasonics Symposium 210 31$a[Place of publication not identified]$cI E E E$d2005 215 $a1 online resource $cillustrations 300 $aBibliographic Level Mode of Issuance: Monograph 311 $a0-7803-9382-1 330 $aApplication of piezoelectric flexural mechanical resonators such as tuning forks to accurate measurements of liquid physical properties is discussed. It was shown earlier that liquid properties such as viscosity, density and dielectric constant can be obtained by measuring the resonator AC impedance within certain frequency range and fitting it to the resonator equivalent circuit model [1]. Error sources for the liquid property measurements and their influence on the measured value are investigated. It is shown experimentally that the reproducibility of the viscosity and density measurements using this technique can meet and often exceed the one delivered by the well established analytical instrumentation. It is also demonstrated here that better performance is resulting from the use of the whole impedance curve over a frequency range, which produces better statistics and natural averaging of the noise. 606 $aUltrasonics$vCongresses 615 0$aUltrasonics 676 $a534 801 0$bPQKB 906 $aPROCEEDING 912 $a996206263203316 996 $a2005 IEEE Ultrasonics Symposium$92541612 997 $aUNISA