Aktiebolaget Skf

Skf Economos Deutschland Gmbh

Frank De Wit

Defeng Lang

Sebastian Ziegler

Florin Tatar

Jos Holsnijders

Muhammad Ahmer

Thomas Deigner

Armin Olschewski

Hendrik Anne Mol

Hans-Joachim Vom Stein

Arno Stubenrauch

Yoann Hebrard

Victor Martinez

Alexander De Vries

Andreas Karlsson

Goran Christiansson

Muhammaad Ahmer

Eugene Sigal

The invention relates to a load measuring device including a deformable component configured to be deformed under a load to be measured and a sensor assembly attached to a first portion of the deformable component and to a method for determining load using such a sensor assembly. It is proposed that the sensor assembly includes at least one acceleration sensor configured to detect a change in an orientation of the first portion with regard to the direction of gravity and that the deformable component is formed as a seal configured to be in sliding contact with a component configured to rotate in relation to the seal.

Load measurement device and method for determining load

The invention provides a sealing assembly that includes an elastic seal lip having a movable part. The seal lip is configured to be attached to a first part of a machine and to be in sliding contact with a second part of the machine. It is proposed that at least one vibration sensor is fixed to the movable part of the seal lip.

Sealing assembly and method for monitoring dynamic properties of a sealing assembly

A sealing assembly including an elastic seal lip having a movable part is provided. The seal lip is configured to be attached to a first part of a machine and to be in contact with a second part of the machine. At least one acceleration sensor is fixed to the movable part of the seal lip, and that assembly further includes a data processing device for processing data obtained from the acceleration sensor. The data processing device is configured to determine the orientation of the acceleration sensor in relation to the direction of gravity.

Sealing assembly and method for monitoring a sealing assembly

The invention relates to a bearing cage including a bearing cage main body made of a polymer material and having pockets for receiving at least one row of rolling elements of a bearing. The cage is provided with a passive resonant circuit including an antenna coil attached to the cage main body. It is proposed that the antenna coil is formed as a conductive layer directly attached to the cage material of the bearing cage main body and is designed so as to have a breaking point less than or equal to a breaking point of the cage material. Thus, a rupture in the cage main body ruptures the antenna coil, changing the resonance behavior of the passive resonant circuit.

Bearing cage with antenna and method for detecting failure of a bearing cage

The invention relates to a sensor assembly for use in a bearing including at least one bearing cage configured to accommodate at least one rolling element of the bearing, the sensor assembly including a driven oscillator circuit providing a receiver, a function generator and a primary coil, and a passive oscillator circuit including a temperature dependent capacitance. The passive oscillator circuit is configured to be attached to the bearing cage such that the inductor coil interacts with the primary coil of the driven oscillator circuit. It is proposed that a directional coupler is provided in a signal line between a function generator and the primary coil of the system, wherein the directional coupler is arranged to output a signal reflected from the passive resonant circuit in the cage toward a tuned receiver receiving the feedback of the signals generated by the function generator.

Sensor assembly for bearing with wireless temperature sensor

An apparatus () comprises a wireless sensor system () with electronic circuitry () and a power supply () for powering the electronic circuitry. The power supply comprises a primary cell () and an energy scavenger (). The energy scavenger scavenges ambient energy and converts the scavenged ambient energy into electric energy. The sensor system is configured for having the primary cell power the electronic circuitry when the energy scavenger is inactive. The system is configured for performing at least one of having the energy scavenger power the electronic circuitry via the primary cell when the energy scavenger is active, using a capacitance of the primary cell as a buffer for the electric energy; and having the energy scavenger recharge the primary cell.

Wireless sensor with energy scavenger

The present invention concerns a power supply () comprising a primary cell () adapted to provide a primary cell current. The primary cell () comprises an anode, a cathode current collector and an electrolyte, whereby a passivation layer is formed on a surface of the anode as a result of a chemical reaction between the anode and the electrolyte. To ensure that the passivation layer remains essentially intact for the lifetime of the primary cell, the power supply () further comprises a current limiter () that is configured to prevent the magnitude of the primary cell current exceeding a value that would damage the passivation layer.

Extended duration power supply

A system and method for executing a plurality of pre-determined signal processing tasks includes an energy source for powering a signal processing system. The energy source supplies an amount of energy that varies over the service life of the energy source. The signal processing system determines an amount of energy available from the energy source and selects for execution a specific one of the pre-determined signal processing tasks in dependence on the amount determined.

System and method for selecting and executing a task based upon a measured amount of energy

A roller body for a roller bearing includes at least one cavity extending from an end face of the roller body, at least one retaining element is disposed in the cavity, and at least one sensor is disposed in the cavity, such as in or on the retaining element. The sensor is at least partially surrounded by an elastic material in a protective manner.

Growing community of inventors

Noordeloos, Netherlands

Frank De Wit