| 摘要 |
The invention relates to a measuring probe consisting of an insertion needle, which is provided in the form of a hollow needle, and which is provided with a sensor for detecting or measuring gas contents of fluids located in a closed volume, e.g. in packages, whereby one end of the hollow needle (1) is provided in the shape of a sphere (2) or, in a different embodiment, is provided with a tapered shape. Several openings (3) are placed closely behind the tapered end in the area of the constant cross-section. A hollow profile (5) can be coaxially displaced inside the hollow needle. A sensor (4) is placed on the end of the hollow profile located closest to the sphere. A pin (7), which is radially fixed on the hollow profile (5), is guided in an axially displaceable manner in a guide groove (4) that is milled inside the wall of the hollow needle (1). A portioning aid (8) placed on the outer surface of the hollow needle sets the insertion depth of the hollow needle (1) in a reproducible manner. In addition, the lines (9) for transmitting the measurement signals are guided outward through the open end of the hollow profile. |
