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1. 发明专利

JP2001165909A METHOD OF DETERMINING CHARACTERISTICS OF METAL ELECTRODE OF CERAMIC SENSOR ELEMENT 失效
公开(公告)号：JP2001165909A
公开(公告)日：2001-06-22
申请号：JP2000319729
申请日：2000-10-19
申请人： BOSCH GMBH ROBERT
发明人： HACHTEL HANSJOERG , SCHNEIDER JENS STEFAN , MOSER THOMAS
IPC分类号： G01N27/72 , G01B7/06 , G01N27/90 , G01R27/26
摘要： PROBLEM TO BE SOLVED: To provide a simple and inexpensive method capable of automatically controlling the distribution and quantity of a metal precipitated during the manufacture of a ceramic sensor element in a non-destructive manner. SOLUTION: An electrode layer to be measured is introduced into the magnetic field of a measuring coil, to which an AC current flows and the electrical characteristics of the electrode layer to be measured, according to circumstances, the magnetic characteristics thereof are measured to determine the characteristics of the metal electrode of a ceramic sensor element, to evaluate the metal electrode with respect to a definite standard. In this method, a process A for performing the reference measurement of the ceramic sensor element having a first metal electrode layer, a process B for performing the post-measurement of the sensor element after a second metal electrode layer is precipitated, a process C for performing the substation of the measuring signals obtained in the processes A, B in order to determine the characteristics of the thickness or quantity of a precipitated metal, a process D for performing the post-measurement using the heat-treated metal electrode, after heat treatment and a process E for performing the subtraction of the measuring signals obtained in the processes B, D, in order to determine the characteristics of mixed crystal formation and mixed crystal distribution achieved through heat treatment are performed with respect to a sample during the production of the metal electrode.

2. 发明申请

WO9304341A3 DEVICE FOR THE NON-CONTACT MEASUREMENT OF THE DISPLACEMENT OR ANGLE OF ROTATION OF A COMPONENT 审中-公开
标题翻译：用于非接触式测量位移或旋转部件角度的装置
公开(公告)号：WO9304341A3
公开(公告)日：1993-05-27
申请号：PCT/DE9200628
申请日：1992-07-30
申请人： BOSCH GMBH ROBERT
发明人： DOBLER KLAUS , HACHTEL HANSJOERG
IPC分类号： G01D5/20
CPC分类号： G01D5/2006
摘要： Described is a measurement device (11) for the determination of angle of rotation or displacement, the device having a coil core (10) on which are wound two coils (12, 13) which are connected into a voltage-splitter circuit. Between the two coils is a transition zone (14) whose longitudinal length is the same as the length of the measurement collar (17). Fixed to the measurement collar (17) is the component whose motion is to be determined. The two coils (12, 13) are wound on the core (10) in such a way that, when a current is flowing through them, they generate an unhomogenous magnetic field. To this end, the windings of the two coils (12, 13) are located an increasing distance apart, the ends of the coils where the distance between the windings is greatest being in the transition zone (14). The measurement device (11) proposed is particularly short in design, has a high sensitivity and the signal produced has a range over which it is linear.
摘要翻译：描述了用于确定旋转角度或位移的测量装置（11），该装置具有线圈芯（10），在线圈芯上缠绕有两个线圈（12,13），线圈连接到分压器电路中。在两个线圈之间是过渡区（14），其纵向长度与测量套环（17）的长度相同。固定在测量环（17）上的是要确定运动的部件。两个线圈（12,13）以这样的方式缠绕在芯体（10）上，使得当电流流过它们时，它们产生不均匀的磁场。为此，两个线圈（12,13）的绕组位于分开增加的距离处，其中绕组之间的距离最大的线圈的末端位于过渡区（14）中。所提出的测量装置（11）在设计上特别短，具有高灵敏度并且所产生的信号具有线性的范围。

3. 发明专利

DE502005002590D1 未知
公开(公告)号：DE502005002590D1
公开(公告)日：2008-03-06
申请号：DE502005002590
申请日：2005-06-23
申请人： BOSCH GMBH ROBERT
发明人： HACHTEL HANSJOERG , MEYER STEFAN
IPC分类号： G01B7/06
摘要： With a method for the contactless determination of a thickness of a layer ( 20 ) made of electrically-conductive material of a component ( 17 ), a sensor composed of a coil form ( 13 ) and a coil ( 14 ) is positioned in the vicinity of the component ( 17 ) to be measured. The method is based on a combination of the principles of induction and eddy current. The thickness of the layer ( 20 ) is determined using a plurality of measuring and evaluation steps in which the coil ( 14 ) is acted upon with a first alternating current frequency f and its inductance and resistance values are evaluated. The distance between the coil form ( 13 ) and, therefore, the coil ( 14 ), and the component ( 17 ) is derived from the resistance value R of the coil ( 14 ) acted upon with alternating current frequency f.

4. 发明专利

BR9707547A 未知
公开(公告)号：BR9707547A
公开(公告)日：1999-07-27
申请号：BR9707547
申请日：1997-11-08
申请人： BOSCH GMBH ROBERT
发明人： DOBLER KLAUS , HACHTEL HANSJOERG , DIMKE REINHARD , AUF DER HEIDE FRANZ , BLATTERT RICHARD , WEBER JOSEF
IPC分类号： G01B7/06 , G01D5/20 , G01N27/72 , G01R33/12 , G01B121/02
摘要： A process for determining a thickness of a layer of electrically conductive material, any measurement errors are converted into dimensionless norm values with the aid of a normalization process. In this conversion, measurement errors, for example due to temperature drift and different electrical and magnetic properties of the base material of the carrying body can be largely eliminated. These norm values are converted into layer thickness values with the aid of a calibration curve.

5. 发明专利

ES2107368B1 未知
公开(公告)号：ES2107368B1
公开(公告)日：1998-07-01
申请号：ES9500379
申请日：1995-02-27
申请人： BOSCH GMBH ROBERT
发明人： DOBLER KLAUS , HACHTEL HANSJOERG
IPC分类号： G01B7/02 , H01F21/10 , G01B7/00 , G01B7/30

6. 发明专利

DE58902914D1 未知
公开(公告)号：DE58902914D1
公开(公告)日：1993-01-14
申请号：DE58902914
申请日：1989-07-11
申请人： BOSCH GMBH ROBERT
发明人： HACHTEL HANSJOERG , DOBLER KLAUS
IPC分类号： G01B7/00 , G01B7/30 , G01D5/20
摘要： PCT No. PCT/DE89/00458 Sec. 371 Date Dec. 3, 1990 Sec. 102(e) Date Dec. 3, 1990 PCT Filed Jul. 11, 1989 PCT Pub. No. WO90/01140 PCT Pub. Date Feb. 8, 1990.A measuring device for contactless determination of a change in a linear travel or angle of rotation includes two bodies movable relative to one another, and at least two electrical elements arranged on one of the two bodies and connected in at least one electrical bridge circuit. Electrical characteristic values of the two electrical elements vary in accordance with relative change assigned areas of the other of the two bodies. The two electrical elements have different electrical measurement sensitivities for fixing a place with a highest measurement accuracy and smallest drift errors within a measurement area of the measuring device.

7. 发明专利

DE3865970D1 未知
公开(公告)号：DE3865970D1
公开(公告)日：1991-12-05
申请号：DE3865970
申请日：1988-07-28
申请人： BOSCH GMBH ROBERT
发明人： DOBLER KLAUS , HACHTEL HANSJOERG
IPC分类号： G01B7/00 , G01B7/30 , G01D5/20 , G01D5/242 , G01L3/10
摘要： The measuring device uses 2 sleeves (18,19) attached to respective shaft extensions (11,12) for relative rotation. The outer surface of each sleeve (18,19) has alternating segments of high and low electrical conductivity running parallel to the shaft axis (17), detected by a pair of coils (31,32; 33, 34) connected in a wheatstone bridge circuit. The HF currents through the coils (31..34) generate a magnetic AC field for generation of eddy currents in the alternating segments of each sleeve (18,19). The 2 coils (31,32; 33,34) for each sleeve may lie immediately adjacent one another, or be wound one on top of the other.

8. 发明专利

ES2014939A6 DISPOSITIVO DE MEDIDA PARA LA DETERMINACION DEL MOMENTO DE ROTACION DE UNA PIEZA GIRATORIA DE UNA MAQUINA. 未知
公开(公告)号：ES2014939A6
公开(公告)日：1990-07-16
申请号：ES8903071
申请日：1989-09-08
申请人： BOSCH GMBH ROBERT
发明人： DOBLER KLAUS , HACHTEL HANSJOERG
IPC分类号： G01L3/14 , G01L3/02 , G01B7/30
摘要： DISPOSITIVO DE MEDIDA PARA LA DETERMINACION DEL MOMENTO DE ROTACION DE UNA PIEZA GIRATORIA DE UNA MAQUINA QUE PRESENTA UN ELEMENTO DE TORSION CONFIGURADO A MODO DE RUEDA DE RADIOS (11). LOS RADIOS (16) ESTAN UNIDOS CON UN PRIMER Y CON UN SEGUNDO CASQUILLO (22 Y 27) CON RANURAS LONGITUDINALES (23, 28), CONFIGURADAS EN DIRECCION AXIAL. ENTRE LOS DOS CASQUILLOS (22, 27) SE MUEVE, CON RELACION A LOS MISMOS (22, 27), UN TERCER CASQUILLO (25), FIJADO AL CUBO (17) DE LA RUEDA DE RADIOS (11). CUANDO SE ARQUEAN LOS RADIOS (16), QUE SIRVEN A MODO DE VARILLAS FLEXIBLES, GIRARAN LOS CASQUILLOS (22, 25, 27) RELATIVAMENTE ENTRE SI, CON LO QUE SE MODIFICARA LA IMPEDANCIA EN LAS BOBINAS (35, 37) RECORRIDAS POR CORRIENTE ALTERNA DE ALTA FRECUENCIA, SEGUN EL PRINCIPIO DE LAS CORRIENTES DE FOUCAULT. LA SEÑAL DE MEDIDA, ASI GENERADA, ES FUNCION DEL MOMENTO DE ROTACION INTRODUCIDO. ES ESPECIALMENTE VENTAJOSO EL USO DEL DISPOSITIVO DE MEDIDA EN LA AYUDA ELECTROMOTORIZADA A LA DIRECCION DE VEHICULOS AUTOMOVILES.

9. 发明专利

DE3342186A1 Acceleration pickup 未知
公开(公告)号：DE3342186A1
公开(公告)日：1985-05-30
申请号：DE3342186
申请日：1983-11-23
申请人： BOSCH GMBH ROBERT
发明人： DOBLER KLAUS DR , HACHTEL HANSJOERG , EGELHAAF PETER DIPL PHYS , MAUSNER EBERHARD DIPL ING
IPC分类号： G01P15/11 , A62B35/02 , B60R21/10
摘要： Acceleration pickup having a sensor operating in accordance with the eddy-current method. The sensor is formed from a spiral spring (3) which acts on a base plate as a flexural resonator clamped at one end, and whose free end can itself, or at least on the basis of a coating (5) produce electrical eddy-current effects and is situated opposite a measuring coil (4, 4') which is arranged on a carrier. It is preferred for the measuring coil to be constructed together with the entire evaluation electronics and the generator feeding it in the manner of an integrated circuit on an insulating carrier by the application of suitable chemical methods.

10. 发明专利

DE3242109A1 未知
公开(公告)号：DE3242109A1
公开(公告)日：1984-05-17
申请号：DE3242109
申请日：1982-11-13
申请人： BOSCH GMBH ROBERT
发明人： HACHTEL HANSJOERG , DOBLER KLAUS DR
IPC分类号： G01D5/245 , G01P3/481 , G01P3/49 , G01P3/488
摘要： A coil sensor excited with alternating current and connected in a circuit for detecting changes in the coil impedance producing a signal exceeding a fixed threshold value in response to the revolution of a wheel with features providing periodic changes in the spacing between the coil and the wheel, has its periphery subdivided into zones where the surface material is alternately thereomagnetic and non-theromagnetic. With a suitable setting of the frequency of the exciting alternating current and a suitable choice of the materials with respect to their eddy current and magnetic induction effect on the inductance of the coil, it is possible to suppress the signal of once per revolution periodicity resulting from wheel eccentricity, bearing wobble or the like.

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