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    • 1. 发明授权
    • Magnetometer for measuring the magnetic moment of a specimen
    • 用于测量样品磁矩的磁力计
    • US5001426A
    • 1991-03-19
    • US381655
    • 1989-06-08
    • Thomas FreyWolfgang JantzRudolf Stibal
    • Thomas FreyWolfgang JantzRudolf Stibal
    • G01N27/72G01R33/12
    • G01R33/1215
    • In a magnetometer with an inhomogeneous magnetic field which timewise changes in its intensity periodically and acts upon the specimen to be measured, the latter being attached to the free end of a tongue (8) that can be oscillated and whose oscillations can be determined by piezo elements (12, 13), there occurs a compensation of the magnetic moment of the specimen with the aid of a compensating current loop (33). The current required for arresting the oscillations is a measure of the magnetic moment to be determined. An adaptation to the resonance frequency of the oscillating tongue (8) is effected through a frequency control cirucit (22, 28, 6), making it possible to measure large temperature ranges at great sensitivity and contingent on temperature.
    • PCT No.PCT / DE88 / 00532 Sec。 371日期:1989年6月8日 102(e)日期1989年6月8日PCT提交1988年8月31日PCT公布。 出版物WO89 / 03535 日期为1989年4月20日。在具有不均匀磁场的磁力计中,其周期性地时间性地改变其强度并作用于待测量的样品,后者附着到可以振荡的舌(8)的自由端, 其振荡可以由压电元件(12,13)确定,借助于补偿电流回路(33)就会发生样本的磁矩的补偿。 阻止振荡所需的电流是要确定的磁矩的量度。 通过频率控制电路(22,28,6)实现对振荡舌(8)的共振频率的适应,使得可以以很高的灵敏度并且取决于温度来测量大的温度范围。
    • 7. 发明授权
    • Pressure sensor for the combustion chamber of an internal combustion
engine
    • 用于内燃机燃烧室的压力传感器
    • US4494401A
    • 1985-01-22
    • US540296
    • 1983-10-11
    • Klaus DoblerUlrich SchoorRudolf HeinzThomas FreyWerner Grunwald
    • Klaus DoblerUlrich SchoorRudolf HeinzThomas FreyWerner Grunwald
    • G01L23/08G01L23/18G01L23/22
    • G01L23/22F23Q2007/002
    • To sense pressure within the combustion chamber of an internal combustion engine (ICE), a plug element which already extends into the combustion chamber of the ICE, such as a sparkplug, or a glow plug, has a layer-like resistor applied to a ceramic insulator extending into the combustion chamber, for example, directly on the central insulator of a sparkplug or on the side of a ceramic glow plug bushing or plug element. If applied to a sparkplug then, preferably, the heater is shielded by metallic layers, separated from the metallic shielding layers by insulating layers, of which the top metallic layer preferably is platinum or a platinum-type metal to catalyze combustion of residues which, otherwise, might collect on the top layer and interfere with proper sensor operation. The layer-like sensor and conductive tracks may be of thick film construction; stamp-on printing with flexible printing stamps is suitable to apply the layer-like resistors.
    • 为了感测内燃机(ICE)的燃烧室内的压力,已经延伸到ICE的燃烧室(例如火花塞或电热塞)中的塞子元件具有应用于陶瓷的层状电阻器 绝缘体例如直接延伸到燃烧室中的火花塞的中心绝​​缘体上,或者在陶瓷预热塞衬套或插塞元件侧。 如果应用于火花塞,则优选地,加热器被金属层屏蔽,金属层通过绝缘层与金属屏蔽层分离,绝缘层的顶部金属层优选为铂或铂型金属以催化残余物的燃烧,否则 ,可能会收集在顶层,并干扰正确的传感器操作。 层状传感器和导电轨道可以是厚膜结构; 使用柔性印刷邮票的印花印刷适用于层状电阻器。