Voltage-to-current converter circuit
    123.
    发明授权
    Voltage-to-current converter circuit 失效
    电压 - 电流转换器电路

    公开(公告)号:US4618814A

    公开(公告)日:1986-10-21

    申请号:US622159

    申请日:1984-06-19

    申请人: Kazuo Kato Hideo Sato

    发明人: Kazuo Kato Hideo Sato

    摘要: A voltage-to-current converter circuit for outputting a current accurately proportional to the input signal voltage, which converter circuit includes an operational amplifier for providing an output corresponding to a difference between the input signal and a feedback signal, and includes a feedback circuit for detecting the output current in the form of a voltage by making the output current flow through the reference resistor and for feeding back the detected voltage. Further, the feedback circuit includes a polarity inverting circuit which holds the voltage detected by the reference resistor and inverts the polarity of the voltage, and then feeds back to the operational amplifier.

    摘要翻译: 一种用于输出与输入信号电压精确成比例的电流的电压 - 电流转换器电路,该转换器电路包括用于提供对应于输入信号和反馈信号之间的差的输出的运算放大器,并且包括反馈电路 通过使输出电流流过参考电阻器来检测电压形式的输出电流并反馈检测到的电压。 此外,反馈电路包括极性反转电路,其保持由参考电阻检测的电压并使电压的极性反转,然后反馈到运算放大器。

    Method and apparatus for coating
    124.
    发明授权
    Method and apparatus for coating 失效
    涂层方法和设备

    公开(公告)号:US4548837A

    公开(公告)日:1985-10-22

    申请号:US515057

    申请日:1983-06-23

    摘要: A method and an apparatus in which gas is jetted out of the gas injector 3' to support the support 2 in a contactless manner, while coating solutions are applied onto both sides of the support 2 by means of the coaters 1 and 1'. Supporting static pressure produced in a gap between the support 2 and the injector 3' is made to become 1/10 through 1/1000 of supply pressure of gas fed into the injector 3', and a lift of the support 2 at the contact point with the coating solution from the coater is made to have a value of 20 through 500.mu..

    摘要翻译: PCT No.PCT / JP82 / 00428 Sec。 371日期:1983年6月23日 102(e)日期1983年6月23日PCT申请日1982年11月4日PCT公布。 公开号WO83 / 01585 日期:1983年5月11日。一种方法和装置,其中将气体从气体注射器3'喷射出以非接触方式支撑支撑件2,同时通过涂布机将涂层溶液施加到支撑件2的两侧 1和1'。 在支撑件2和喷射器3'之间的间隙中产生的支撑静压被制成为进入喷射器3'的气体的供应压力的1/10至1/1000,并且支撑件2在接触点处的升力 来自涂布机的涂布溶液的值为20至500μm。

    Orthopedic and dental implant ceramic composition and process for
preparing same
    128.
    发明授权
    Orthopedic and dental implant ceramic composition and process for preparing same 失效
    骨科和牙科植入物陶瓷组合物及其制备方法

    公开(公告)号:US4149893A

    公开(公告)日:1979-04-17

    申请号:US740776

    申请日:1976-11-10

    摘要: Disclosed is an orthopedic and dental implant ceramic composition comprising hydroxyapatite and whitlockite. Said composition is prepared by blending 50 to 99.5% by weight of a crystalline hydroxyapatite and 0.5 to 50% by weight of whitlockite, and then, sintering the blend at a temperature of 900.degree. to 1,400.degree. C. Said crystalline hydroxyapatite is prepared by the solid phase reaction wherein a mixture of a calcium phosphate, having a Ca/P ratio of 1.5 to 1.67 by mole, and a stoichiometric amount or more of a calcium compound is heated at a temperature of 500.degree. to 1,000.degree. C. Said calcium compound is at least one compound selected from the group consisting of CaCO.sub.3, CaO, Ca(OH).sub.2, CaF.sub.2, Ca(COO).sub.2, Ca(NO.sub.3).sub.2 and CaCl.sub.2.

    摘要翻译: 公开了一种包含羟基磷灰石和白铁矿的整形外科植入物陶瓷组合物。 所述组合物通过混合50-99.5重量%的结晶羟基磷灰石和0.5-50重量%的黄铁矿,然后在900℃至1400℃的温度下烧结该共混物来制备。所述晶体羟基磷灰石由 固相反应,其中Ca / P比为1.5〜1.67摩尔的磷酸钙和化学计量量以上的钙化合物的混合物在500〜1000℃的温度下加热。所述钙化合物 是选自CaCO 3,CaO,Ca(OH)2,CaF 2,Ca(COO)2,Ca(NO 3)2和CaCl 2中的至少一种化合物。