Removable Cooking Sensor With Intrinsic Temperature Compensation
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Solution Overview
Problem
Existing cooking sensors face challenges in accurately measuring the temperature of cookware, especially when attached close to a hot zone, leading to potential overheating and imprecise readings due to external heat influences.
Innovation Solution
A removable cooking sensor system with a discrete intrinsic temperature sensor and a data processing device that allows for precise temperature measurement and wireless data transmission, including a magnetically attachable design and a combination of IR and thermistor sensors for accurate temperature monitoring and protection against overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the cooking sensor is attached close to the hot zone for effective temperature monitoring, then the measurement capability is improved, but the sensor is exposed to excessive external heat influences causing overheating and imprecise readings
Solution Approach 1:
The patent introduces a magnetically attachable sensor device as an intermediary between the hot zone and the measurement system. The sensor can be positioned close to the cookware for accurate measurement while the magnetic attachment mechanism allows flexible positioning to minimize direct heat exposure to the sensor electronics, thus mediating between measurement needs and heat protection
Solution Approach 2:
The patent employs temperature compensation by changing the measurement parameters. The sensor measures both the cookware temperature and compensates for its own intrinsic temperature, effectively separating the target measurement from the harmful thermal environment through parameter adjustment and differential measurement
2Reliability
If the cooking sensor is positioned near the hotplate for effective monitoring, then the temperature detection capability is improved, but the sensor itself may overheat leading to unreliable operation
Solution Approach 1:
The patent implements a feedback mechanism where the sensor continuously monitors its own intrinsic temperature and uses this information to compensate for measurement errors. The sensor device measures its own temperature and feeds this back to adjust the cookware temperature reading, ensuring reliable operation even when exposed to high ambient temperatures near the hotplate
Solution Approach 2:
The sensor device performs self-diagnosis and self-compensation by monitoring its own intrinsic temperature. The device automatically adjusts its measurements based on its thermal state, eliminating the need for external temperature compensation systems and ensuring reliable operation through self-service temperature management
3Device complexity
If a single temperature sensor is used in the cooking sensor device, then the device complexity is reduced, but the ability to distinguish between cookware temperature and sensor intrinsic temperature is compromised
Solution Approach 1:
The patent divides the temperature measurement function into two separate sensing elements: one dedicated to measuring cookware temperature and another for measuring the sensor's own intrinsic temperature. This segmentation allows each sensor to be optimized for its specific measurement task, improving overall measurement precision while keeping the device design relatively simple
Solution Approach 2:
The sensor device performs multiple functions using a unified magnetic attachment platform: it can measure cookware temperature, monitor its own intrinsic temperature, and provide flexible positioning. The magnetic attachment system serves as a universal mounting mechanism that enables both measurement functions while allowing the sensor to be positioned optimally for each measurement type
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise temperature determination of both the cookware and the sensor itself, preventing overheating and ensuring reliable operation by transmitting critical temperature values for controlled power supply adjustments.
Implementation Method 1
The at least one magnet can e.g. be arranged on an underside of the cooking sensor
Implementation Method 2
The cookware temperature sensor is set up and arranged to sense the cookware temperature in a touching or non-contact manner
Implementation Method 3
the at least one discrete intrinsic temperature sensor for sensing an intrinsic temperature of the cooking sensor
Data Source
Figure 1
Figure 2
AI summary
A detachable cooking sensor (1) has a cookware temperature sensor (5) for sensing a wall of a cookware (K) and a data processing device (6a) connected to the cookware temperature sensor (5), which is configured to determine a cookware temperature by means of the cookware temperature sensor (5), wherein the cooking sensor (1) additionally has at least one discrete intrinsic temperature sensor (9) for sensing an intrinsic temperature of the cooking sensor (1), and wherein the data processing device (6a) is connected to the at least one discrete intrinsic temperature sensor (9) and is configured to determine a respective intrinsic temperature by means of the at least one discrete intrinsic temperature sensor (9).