发明名称 |
Method and apparatus for testing a valve actuated by an electromagnet having an armature |
摘要 |
A method for testing a valve being driven by an electromagnet having a electromagnet armature, includes determining a value of current in the electromagnet as a response current, at an instant when motion of the electromagnet armature of the valve begins during a switching action of the valve. A force acting through the electromagnet upon the electromagnet armature is determined from the determined response current, at the instant when motion of the electromagnet armature begins, by means of a calibration function, as a response force and as a standard for the condition of the valve. An apparatus for testing a valve being driven by an electromagnetic having a electromagnet armature and an electrical circuit, includes a current meter in the electrical circuit of the electromagnet. A computer is connected to the current meter. A memory for a calibration function is connected to the computer for indicating a dependency of a force acting upon the electromagnet armature on a current in the electrical circuit of the electromagnet.
|
申请公布号 |
US5492009(A) |
申请公布日期 |
1996.02.20 |
申请号 |
US19930153776 |
申请日期 |
1993.11.17 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
KEMPF, BURKHARD;KLOTZ, HANS-JOACHIM |
分类号 |
G01R31/06;(IPC1-7):G01R31/00;G01R19/00;G01L1/00;F16K37/00 |
主分类号 |
G01R31/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|