| 摘要 |
PCT No. PCT/DE95/00450 Sec. 371 Date Oct. 20, 1996 Sec. 102(e) Date Oct. 20, 1996 PCT Filed Apr. 1, 1995 PCT Pub. No. WO95/29382 PCT Pub. Date Nov. 2, 1995The invention relates to a depth gauge for use in angling or sports fishery. The depth of a body of water may be measured therewith from its surface to its bottom, and/or the depth and the size of strata of water of different temperatures for the purpose of offering bait to different species of fish in their preferred environments, for instance at the bottom of a water or at a thermocline stratum. In accordance with the invention, a water-proof housing a temperature sensor, a pressure sensor, a digital evaluation circuit, a display and a program switch are provided within a water-proof housing and electrically interconnected in such a manner, that the measurement value about the depth of the water to its bottom and/or water strata marked by temperature differences of more than 3 DEG Kelvin are processed and stored by the digital evaluation circuit. By means of the program switch, the stored measurement data may be called up and rendered visible in the display. In its construction and configuration the depth gauge is optimally suited for its intended use. It is light and small, and it may be industrially manufactured with little investment.
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