| 摘要 |
The invention relates to a method for optical measuring systems, comprising a sensor element ( 6 ) connected to a measuring and control unit ( 10 ) via an optical connection ( 3 ), and being adapted for providing a signal defining a measurement of a physical parameter (p) influencing the sensor element ( 6 ), said method comprising generation of a measuring signal that is brought to come in towards the sensor element ( 6 ), and detection of the intensity of the measuring signal (B) in the measuring and control unit ( 10 ), after influencing the measuring signal in the sensor element ( 6 ). The invention is characterised by comprising partial reflection of the measuring signal at a point along the optical connection ( 3 ), at a predetermined distance from the sensor element ( 6 ), detection of the intensity of the signal (A), corresponding to said partially reflected measuring signal, and determination of a measurement of said parameter (p) based upon the intensity of the partially reflected signal (A) and the intensity of the measuring signal (B). The invention also relates to a device for carrying out said method. Through the invention, measurements with an optical pressure measuring system are allowed, which exhibit effective compensation for any existing sources of error. |
