3m Innovative Properties Company

Sihua Yuan

Zheng Huang

Justin M Johnson

Zhiguo Wen

Xuetao Yu

Ronald David Jesme

Ming Zhang

Tao Yang

Jia Hu

Terrence H Joyce

Andrew Bonifas

Ryan D Erickson

Christopher D Sebesta

Qihong Nie

Jacob D Chatterton

Yingyu Wang

Gaofei Guo

Tongyong Li

Andrew Paul Bonifas

Justin Mark Johnson

Jacob Dale Chatterton

Terrence Harold Joyce

A temperature-sensing apparatus for sensing the temperature of an electrical conductor (), comprising a sensor frame () including a frame body () and a channel () adapted to accommodate the electrical conductor (). At least a portion of a temperature sensor is received in a chamber () of the sensor frame (). At least a portion of a thermal contact member is disposed between the electrical conductor () and the temperature sensor and configured to enhance thermal-contact therebetween. At least a portion of the thermal contact member is radially pressable against the electrical conductor ().

Real-time temperature measurement for electrical conductors

A system () for monitoring a temperature of an electrical conductor of an electrical cable and including a temperature sensor unit () and a transceiver unit (). The temperature sensor unit () is located inside the first (semi)conductive layer and includes a micro-controller (), a temperature sensor (), an energy harvest sub-unit () and a wireless transmitter layer (). The temperature sensor () is adapted to detect a first signal (S) representing temperature of the electrical conductor and to supply the first signal (S) to the micro-controller (). The transceiver unit () is located outside the first (semi)conductive layer and includes an energy transmitter () and a wireless receiver (). The energy harvest sub-unit () is adapted to harvest electromagnetic power from the energy transmitter () and to provide electrical power to the micro-controller (). The wireless transmitter () is adapted to being engaged with the wireless receiver () under the control of the micro-controller () to transmit a second signal (S) converted from the first signal (S) to the wireless receiver (). The energy harvest sub-unit () and the wireless transmitter () are designed to have different working frequency.

Systems and methods for monitoring temperature of electrical conductor

A system for monitoring temperature of an electrical conductor () enclosed in at least a (semi)conductive layer () comprising: a passive inductive unit (), and a transceiver unit () and a control unit (). The passive inductive unit () includes at least one temperature sensitive component and is configured to have a resonance frequency and/or Q value that vary with temperature of the electrical conductor (). The transceiver unit () is configured to be electromagnetically coupled to the passive inductive unit () and to send out a signal representing the resonance frequency and/or Q value of the passive inductive unit (). The transceiver unit () is further configured to communicate with the control unit () which ascertains the signal representing one or both of the resonance frequency and Q value, and which determines a value of the temperature of the electrical conductor () based on the ascertained signal representing one or both of the resonance frequency and Q value.

System for monitoring temperature of electrical conductor

Growing community of inventors

Shanghai, China

Sihua Yuan