Abstract:
Systems and methods of sensor linearization are provided. For instance, a system for sensing a value associated with a physical quantity can include a sensing network including a transducer, a source configured to provide an electrical signal to the sensing network, and an analog-to-digital converter coupled to the transducer configured to sample an output voltage associated with the sensing network. The system can further include one or more processors configured to determine a value of a physical quantity associated with the system based at least in part on the sampled output voltage associated with the sensing network. The value of the physical quantity is determined based at least in part on a linear approximation of a network characteristic associated with the sensing network. The linear approximation is determined by approximating a slope of a tangent of a selected point on the network characteristic to a power of two.
Abstract:
Disclosed is a method for calibrating a sensor of a monitoring apparatus for monitoring an analyte concentration in a body fluid sample of a patient in which a temperature-dependent drift model is derived for the sensor. An apparatus for monitoring an analyte concentration in a body fluid sample of a patient including such a sensor and a signal processor programmed to calibrate the sensor in accordance with this method is also disclosed.
Abstract:
An electronic system, or its battery thermal management system, determines a thermal state of a battery used in the electronic system. A temperature at a position proximate the battery's cell is sensed during operation of the electronic system to produce a sensed value. Additionally, a temperature offset value is determined based on an aging factor for the battery. The sensed value is then adjusted based on the offset value to produce an adjusted value representative of the thermal state of the battery. According to one embodiment, a relationship between temperature offset value and battery aging factor is prestored in a memory of the electronic system. In such a case, the offset value may be retrieved from memory periodically or in response to a trigger event based on a determined aging factor. According to another embodiment, the offset value may be computed in real time based on a determined aging factor.
Abstract:
Sensorelement, wobei das Sensorelement eine erste und eine zweite Messstrecke umfasst, wobei die erste Messtrecke über ein erstes Segment (1) aus einem ersten Material verläuft und die zweite Messstrecke zumindest teilweise über dieses aus dem ersten Material bestehende erste Segment (1) verläuft, wobei die zweite Messtrecke zudem über ein zweites Segment (2) verläuft, welches aus einem zweiten Material besteht, welches zweite Material sich von dem ersten Material unterscheidet.
Abstract:
Method for correcting offset drift effects of a thermal measuring device (10) which comprises at least one temperature sensor (15a, 15b), arranged at a defined distance adjacent to a heating device (12) for a fluid to be measured, for the purpose of measuring at least one measurement variable which describes the temperature and/or the temperature profile during operation of the heating device (12), wherein a reference measured value (35) is measured at a reference time in a first measurement of the measurement variable when the heating device (12) is switched off, wherein at at least one later time in a second measurement of the measurement variable when the heating device (12) is switched off a drift measured value (36) is measured, wherein a drift correction is carried out during the measurement using the heating device (12), on the basis of a difference between the drift measured value (36) and the reference measured value (35).
Abstract:
The present invention pertains to a method suitable for analysing the temperature control of a device which is supposed to establish a defined temperature in a micro-environment, said method comprising a first Optical Temperature Verification step which comprises a) providing one or more thermochromatic liquid crystals in a micro-environment, wherein each thermochromatic liquid crystal has a specific event temperature; b) providing one or more temperature dependent luminophores in a micro-environment; c) varying the temperature in the micro-environments and irradiating the micro-environments with light; d) recording the luminescence of the one or more temperature dependent luminophores when the event temperature of the one or more thermochromatic liquid crystals is reached in the micro-environment; and wherein said method preferably comprises a second Optical Temperature Verification step, which comprises the following: a) providing one or more temperature dependent luminophores that were used in the First Optical Temperature Verification in a micro-environment; b) varying the temperature of the micro-environments and irradiating the micro-environments with light; c) monitoring the luminescence emitted. The respective method is very suitable to analyse the temperature control of a thermal cycler, in particular during a calibration.
Abstract:
A zero-heat-flux, deep tissue temperature measurement system measures internal body temperature by way of a probe having a heater and thermal sensors arranged in a zero-heat-flux construction. The measurement system includes control mechanization that determines heater and skin temperatures based upon data obtained from the probe and uses those temperatures to calculate a deep tissue temperature. The measurement system includes a signal interface cable having a connector where a probe can be releasably connected to the system. The cable and attached connector are a removable and replaceable part of the system, separate from the probe. The measurement system provides an output signal imitating a standard input signal configuration used by other equipment.
Abstract:
Die Erfindung betrifft ein Verfahren zur Bestimmung der Temperatur einer Glühstiftkerze bei einem Betrieb in einer Brennkraftmaschine, wobei eine Temperatur-Widerstands-Referenzkorrelation (B, F) bestimmt wird. Um den Toleranzbereich einer Glühstiftkerze zu verkleinern, wird nach dem Einbau der Glühstiftkerze (21, 22, 23, 24) in die Brennkraftmaschine ein Kalibrierschritt durchgeführt, bei welchem mittels der, vor dem Einbau der Glühstiftkerze (21, 22, 23, 24) in die Brennkraftmaschine bestimmten Temperatur-Widerstands- Referenzkorrelation (B, F) eine glühstiftkerzenspezifische Temperatur-Widerstands-Korrelation (II; III) ermittelt wird, aus welcher die Temperatur der Glühstiftkerze (21, 22, 23, 24) während des Betriebes des Glühstiftkerze (21, 22, 23, 24) in der Brennkraftmaschine bestimmt wird.