Stirring device and method for measuring a parameter of a substance to be stirred

The stirrer according to any of the preceding claims, wherein at least one parameter of the substance comprises a temperature and the sensing device comprises a temperature sensor.

The stirrer according to any of the preceding claims, wherein the at least one parameter of the substance comprises an acidity or a viscosity.

The stirrer according to any of the preceding claims, wherein the first field is a magnetic or electromagnetic field and the stirring device comprises a magnetic device.

The stirrer according to any of the preceding claims, wherein the remote coupling of energy is provided by a second field.

The stirrer according to any of the preceding claims, wherein the stirring device comprises a transmitting device, coupled to the sensing device for transmitting at least one measurement from the stirring device to a receiver positioned outside the substance to be stirred.

The stirrer according to any of the preceding claims, wherein the measuring of the at least one parameter is performed repeatedly.

The stirrer according to any of the preceding claims, wherein the stirring device has a maximum dimension of 10 mm.

The stirrer according to any of the preceding claims, wherein the stirring device is disc-, capsule- or longitudinally shaped.

The stirrer according to any of the preceding claims, wherein the stirring device comprises an encapsulation comprising glass, epoxy or PTFE.

A stirring device for use in a stirrer according to any of the preceding claims, the stirring device comprising a sensing device for measuring at least a parameter of the substance, a reception device, coupled to the sensing device, for remote coupling of energy into the reception device, and an electromagnetic device and wherein the reception device comprises at least one generator coil or part thereof for generating electrical energy, characterised in that the generator coil or part thereof is positioned asymmetrically with regard to a centre between a first magnetic pole and an opposite, second magnetic pole of the magnetic device.

A module for measuring a parameter of a substance surrounding the module, the module comprising a sensing device for measuring the parameter of the substance, a reception device, coupled to the sensing device, for remote coupling of energy into the reception device, and a transmitting device, coupled to the sensing device, for transmitting at least one measurement from the sensing device to a receiver, the reception device comprising a reception coil for the inductive coupling of energy into the reception device, the transmitting device comprising a transmitting coil, characterised in that the transmitting coil is the reception coil, the reception device comprising a detection device for detecting if energy is received momentarily, and the transmitting device being adapted to transmit the at least one measurement when the detection device detects that no energy is received momentarily, the coil or part thereof comprising respective terminals being positioned asymmetrically with regard to a centre between a first magnetic pole and an opposite, second magnetic pole of a magnetic device of the module.

A module for measuring a parameter of a substance surrounding the module, the module comprising a sensing device for measuring the parameter of the substance, a reception device, coupled to the sensing device, for remote coupling of energy into the reception device, and a transmitting device, coupled to the sensing device, for transmitting at least one measurement from the sensing device to a receiver, the reception device comprising a reception coil for the inductive coupling of energy into the reception device, the transmitting device comprising a transmitting coil, characterised in that the transmitting coil is the reception coil and is coupled to an impedance modulator for modulating an impedance of the transmitting coil, the coil or part thereof comprising respective terminals being positioned asymmetrically with regard to a centre between a first magnetic pole and an opposite, second magnetic pole of a magnetic device of the module.

A method for measuring a parameter of a substance being stirred by a stirring device being submerged in the substance and making a stirring movement, the stirring movement of the stirring device being contactlessly powered by applying a force onto the stirring device by a first field, the method comprising the step of measuring the parameter with a sensing device comprised in the stirring device, the stirring device comprising a reception device for remote coupling of energy into the reception device and an electromagnetic device and wherein the reception device comprises at least one generator coil or part thereof for generating electrical energy, wherein the generator coil or part thereof comprising respective terminals is positioned asymmetrically with regard to a centre between a first magnetic pole and an opposite, second magnetic pole of the magnetic device.