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Ultrasonic professional - bu and uses this the ultrasonic diagnostic device
Ultrasonic professional - bu and uses this the ultrasonic diagnostic device
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机译:超声波专业人员-bu并使用此超声波诊断设备
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摘要
PROBLEM TO BE SOLVED: To achieve a broader band of an ultrasonic prode by arranging at least one of a plurality of vibrators disposed in an array to be made up of first and second piezo-electric monocrystalline parts different in the center frequency and the maximum of the frequency characteristic in the echo sensitivity to restrict the lowering of the signal level. ;SOLUTION: An ultrasonic prode is manufactured by using a zinc niobate lead-lead titanate piezo-electric monocrystalline Pb ((Zn1/3 Nb2/3)1-xTix) O2 (wherein x is 0.05≤x≤0.2). In other words, to obtain a monocrystalline material, PbO, ZnO, Nb2O5 and TiO2 with the purity thereof exceeding about 99.99% are mixed with zinc niobate lead and lead titanate to bring the mol ratio to about 91: about 9 and undergo a heating processing in an electric furnace. The mixture thus obtained is sliced into a wafer with a specified thickness to form a piezo-electric monocrystalline sheet 1 having a part 1a low in transmittance and a part 1b high therein. The plurality of the piezo-electric single crystal sheets 1 are mounted on a packing material 2 to form an ultrasonic probe, thereby obtaining a broad band characteristic.;COPYRIGHT: (C)1999,JPO
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机译:解决的问题:通过将多个振动器中的至少一个布置成由中心频率和最大频率不同的第一和第二压电单晶部分组成的阵列,以实现更宽的超声波探头带宽。回波灵敏度中的频率特性可限制信号电平的降低。 ;解决方案:使用铌酸锌铅-钛酸铅压电单晶Pb((Zn 1/3 Sub> Nb 2/3 Sub>) 1-x Sub> Ti x Sub>)O 2 Sub>(其中x为0.05≤ x≤ 0.2)。换句话说,为了获得单晶材料,其纯度超过约99.99%的PbO,ZnO,Nb 2 Sub> O 5 Sub>和TiO 2 Sub>将其与铌酸锌铅和钛酸铅混合以使摩尔比达到约91∶约9,并在电炉中进行加热处理。将由此获得的混合物切成具有特定厚度的晶片,以形成其中具有低透射率的部分1a和高透射率的部分1b的压电单晶片1。将多个压电单晶片1安装在包装材料2上以形成超声波探头,从而获得宽带特性。版权所有:(C)1999,JPO
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