A gas monitor apparatus includes a sorbent material that adsorbs a target gas based on a concentration of the target gas in a monitored environment and a reference material that does not respond to the target gas. The gas monitor also includes a first thermistor disposed within the sorbent material and a second thermistor disposed within the reference material, the first thermistor to provide a first indication of a first temperature of the sorbent material and the second thermistor to provide a second indication of a second temperature of the reference material. A processing device determines a concentration of the target gas based at least in part on a differential measurement between the first temperature and the second temperature.

A gas monitor apparatus includes a sorbent material that adsorbs a target gas based on a concentration of the target gas in a monitored environment and a reference material that does not respond to the target gas. The gas monitor also includes a first thermistor disposed within the sorbent material and a second thermistor disposed within the reference material, the first thermistor to provide a first indication of a first temperature of the sorbent material and the second thermistor to provide a second indication of a second temperature of the reference material. A processing device determines a concentration of the target gas based at least in part on a differential measurement between the first temperature and the second temperature.

A method for estimating a heat generation distribution in a honeycomb structure includes: a first step of allowing a predetermined minute current to flow between electrode layers A1 and B1 to energize a honeycomb structure, and measuring surface potentials at multiple points; a second step of allowing a predetermined minute current to flow between electrode layers A2 and B2 to energize the honeycomb structure, and measuring surface potentials at multiple points; a third step of quantifying, based on the measured surface potentials at the multiple points, at least one of resistances at the multiple points in the honeycomb structure, resistance ratios for energization paths, voltage sharing ratios, and surface potentials of the electrode layers A1, A2, B1 and B2; and a step of estimating a heat generation distribution in the honeycomb structure based on the values quantified in the third step.

A method for estimating a heat generation distribution in a honeycomb structure includes: a first step of allowing a predetermined minute current to flow between electrode layers A1 and B1 to energize a honeycomb structure, and measuring surface potentials at multiple points; a second step of allowing a predetermined minute current to flow between electrode layers A2 and B2 to energize the honeycomb structure, and measuring surface potentials at multiple points; a third step of quantifying, based on the measured surface potentials at the multiple points, at least one of resistances at the multiple points in the honeycomb structure, resistance ratios for energization paths, voltage sharing ratios, and surface potentials of the electrode layers A1, A2, B1 and B2; and a step of estimating a heat generation distribution in the honeycomb structure based on the values quantified in the third step.

This invention relates to optimisation of the temperature range of thermochromic liquid crystal materials and to related methods and devices for temperature monitoring and measurement. The invention also relates to methods and devices for the improved registering of objects in contact with thermochromic liquid crystal materials.

An oven having multiple oven cavity temperature sensors that provide improved monitoring of oven temperature and that permit improved oven temperature control is provided. Multiple temperature values from the different sensors may be combined or analyzed to provide a more consistent and accurate measurement of the temperature of the food being cooked. Patterns of temperature as a function of location in the oven cavity may be analyzed to detect abnormal but correctable temperature inhomogeneities (for example, cold spots or stratification) and used to adjust parameters of the oven control, (for example, by fan speed/direction adjustment, cycle control of the fan and heater elements) to provide more even temperature distributions.

An oven having multiple oven cavity temperature sensors that provide improved monitoring of oven temperature and that permit improved oven temperature control is provided. Multiple temperature values from the different sensors may be combined or analyzed to provide a more consistent and accurate measurement of the temperature of the food being cooked. Patterns of temperature as a function of location in the oven cavity may be analyzed to detect abnormal but correctable temperature inhomogeneities (for example, cold spots or stratification) and used to adjust parameters of the oven control, (for example, by fan speed/direction adjustment, cycle control of the fan and heater elements) to provide more even temperature distributions.

According to various embodiments, a wearable electronic device may include: a housing comprising a first plate including a first surface facing in a first direction, and a second plate including a second surface facing a second direction opposite to the first direction; a substrate disposed in a space between the first plate and the second plate of the housing; a processor; and at least two temperature sensors, wherein the at least two temperature sensors comprise a contact-type temperature sensor and a non-contact-type temperature sensor arranged at positions different from each other in the housing, and the processor is configured to: determine a body temperature using the temperatures measured by the contact-type temperature sensor and the non-contact-type temperature sensor.

An electronic device housing encloses a temperature sensing system including a temperature sensor and a differential temperature probe. The differential temperature probe includes a flexible substrate defining two ends. A first end is thermally coupled to the temperature sensor and a second end is thermally coupled to a surface, volume, or component of the electronic device. The temperature probe is an in-plane thermopile including a series-coupled set of thermocouples extending from the first end to the second end. A temperature measured at the temperature sensor can be a first measured temperature and a voltage difference across leads of the differential temperature probe can be correlated to a differential temperature relative to the first measured temperature. A sum of the differential temperature and the first measured temperature is a second measured temperature, quantifying a temperature of the second end of the differential temperature probe.

An electronic device housing encloses a temperature sensing system including a temperature sensor and a differential temperature probe. The differential temperature probe includes a flexible substrate defining two ends. A first end is thermally coupled to the temperature sensor and a second end is thermally coupled to a surface, volume, or component of the electronic device. The temperature probe is an in-plane thermopile including a series-coupled set of thermocouples extending from the first end to the second end. A temperature measured at the temperature sensor can be a first measured temperature and a voltage difference across leads of the differential temperature probe can be correlated to a differential temperature relative to the first measured temperature. A sum of the differential temperature and the first measured temperature is a second measured temperature, quantifying a temperature of the second end of the differential temperature probe.