# US 10,309,516 B2 · Measuring system and measuring method for detecting variables on planetary carriers of a planetary gear train > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,516 B2 - Document ID: US10309516B2 - Status: Granted - Kind: B2 - Application number: 15/554,377 - Filed: 2016-03-01 - Published: 2018-02-08 - Granted: 2019-06-04 - Earliest claimed: 2015-03-03 - Assignees: Flender GmbH - Applicants: Siemens Aktiengesellschaft - Inventors: Julia Camminadi; Matthias Deicke; Jörg Hassel; Reinhold Keck; Hans-Henning Klos; Stefan Von Dosky - Web page: https://patentgrep.com/patent/US10309516B2 ## CPC - F16H 57/01: Monitoring wear or stress of gearing elements, e.g. for triggering maintenance - F03D 17/00: Monitoring or testing of wind motors, e.g. diagnostics (testing during commissioning of wind motors F03D13/30) - G01M 13/021: Gearings - H04Q 9/00: Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom - F03D 15/00: Transmission of mechanical power - F05B 2260/40311: of the epicyclic, planetary or differential type - F16H 1/46: Systems consisting of a plurality of gear trains each with orbital gears, {i.e. systems having three or more central gears} - F16H 2057/012: {of gearings} - H04Q 2209/30: using a wired architecture - H04Q 2209/40: using a wireless architecture - H04Q 2209/88: Providing power supply at the sub-station - H04Q 2209/886: using energy harvesting, e.g. solar, wind or mechanical - Y02E 10/72: Wind turbines with rotation axis in wind direction - F16H: GEARING - F03D: WIND MOTORS - G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR - H04Q: SELECTING (switches, relays, selectors H01H; wireless communication networks H04W) - F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A measuring system for detecting variables on planet carriers of a planetary gear train having a plurality of planetary gear stages includes a first sensor which is arranged on one of the planet carriers of one of the planetary gear stages for detecting the variables of a planet gear rotationally connected to the at least one of the planet carriers. An electronics configured for arrangement on the planetary gear train is operably connected to the first sensor for supply of the first sensor with electrical energy. ## Claims ### Claim 1 A measuring system for monitoring a planetary gear train having a plurality of planetary gear stages, each planetary gear train including a sun shaft, a ring gear, a planet gear connected to the sun shaft and ring gear, and a planet carrier rotationally connected to the planet gear, said measuring system comprising: a sensor arranged on the planet carrier of a selected one of the planetary gear stages for detecting a variable of the planet gear; and an electronic power supply operably connected to the first sensor for supply of the sensor with electrical energy. ### Claim 2 (depends on 1) The measuring system of claim 1, wherein the electronic power supply supplies the sensor with energy in a contactless manner or wirelessly. ### Claim 3 (depends on 1) The measuring system of claim 1, wherein the sensor is configured to monitor multiple planet gears of the selected one planetary gear stage. ### Claim 4 (depends on 1) The measuring system of claim 1, wherein the electronic power supply includes a first electronics facility arranged on the planet carrier of the selected one of the planetary gear stages, and a second electronics facility arranged on end face of the sun shaft of the selected one of the planetary gear stages. ### Claim 5 (depends on 4) The measuring system of claim 4, wherein the second electronics facility has an electrical connecting line routed through the sun shaft which is configured in the form of a hollow shaft. ### Claim 6 (depends on 1) The measuring system of claim 1, further comprising a digital interface for transmitting data to a data processing system. ### Claim 7 (depends on 6) The measuring system of claim 6, wherein the digital interface is arranged on a front side of the planet carrier of the selected one of the planetary gear stages. ### Claim 8 (depends on 6) The measuring system of claim 6, wherein the data is transmitted in a contactless manner or wirelessly from the sensor to the digital interface. ### Claim 9 (depends on 8) The measuring system of claim 8, wherein the data is transmitted wirelessly by using radio or optics. ### Claim 10 A measuring method for monitoring a planetary gear train having a plurality of planetary gear stages, each planetary gear train including a sun shaft, a ring gear, a planet gear connected to the sun shaft and ring gear, and a planet carrier rotationally connected to the planet gear, comprising: arranging a sensor on the planet carrier of a selected one of the plurality of planetary gear stages for detecting a variable of the planet gear; and operably connecting an electronic power supply of the planetary gear train to the sensor for supply of the sensor with electrical energy. ### Claim 11 (depends on 10) The measuring method of claim 10, further comprising transmitting the electrical energy wirelessly. ### Claim 12 (depends on 11) The measuring method of claim 11, wherein the electrical energy is transmitted wirelessly via a capacitive coupling or an inductive coupling. ### Claim 13 (depends on 12) The measuring method of claim 12, further comprising transmitting sensor data via a digital interface; and modulating a coupling factor for transmitting the sensor data.