Embodiments herein relate to oil condition sensing systems and related methods. In a first aspect, an oil condition sensing system is included having a control circuit, a temperature sensor, and a fluid property sensor, wherein the fluid property sensor measures fluid properties including at least dielectric constant and the oil condition sensing system is configured to automatically detect when an oil change event has occurred, record the fluid property sensor data as new baseline fluid property data after an oil change event has occurred, and evaluate the condition of an engine oil based on a comparison with the baseline fluid property data. The oil condition sensing system can be configured to automatically detect the oil change event by evaluating signals from the fluid property sensor and interpret a change in dielectric constant and/or viscosity crossing a threshold value as an oil change event. Other embodiments are also included herein.

The present disclosure relates to a concept for checking at least one solder joint between a printed circuit board and a current sensor, including: measuring, by means of the current sensor, an electric current through the solder joint; measuring at least one temperature of the current sensor as a function of the electric current; and ascertaining a quality of the solder joint based on the temperature and the electric current.

A resistance-integrated gas sensor is provided, including a substrate, a first metal oxide layer, an insulating layer, a contact metal layer, a contact hole, a second metal oxide layer, and an interdigitated electrode layer. The first metal oxide layer is disposed in the substrate. The insulating layer is disposed on the substrate and the first metal oxide layer. The contact metal layer and the contact hole are disposed in the insulating layer. The second metal oxide layer is disposed on the insulating layer. A portion of the interdigitated electrode layer is disposed on the insulating layer, and another portion is disposed in the second metal oxide layer. The contact metal layer and the contact hole connect the first metal oxide layer and the interdigitated electrode layer.

Embodiments are described herein for a sensor device created for determining and monitoring quality and strength developments in concrete and other materials using temperature and electrical resistivity parameters. The embodiments described herein may be utilized in the construction industry for real-time monitoring of concrete and cement structures or for monitoring the strength and quality of soils, polymers, and liquid additives as well. According to various embodiments, alternating current (AC) electrical and temperature measurements may be performed to correlate to the quality and performance of the concrete, polymers, treated soils, and other materials. These measurements may be made by compact sensor devices that are configured to read both temperature and AC electrical measurements continuously to quantify the performance of materials.

An electronic device include: a first housing; a second housing; a display module including a flexible substrate, a TFT layer on the flexible substrate, a protection layer on the TFT layer, and a deformation region which deforms as a relative position between the first housing and the second housing changes; a bending portion including a first layer integral with the flexible substrate and bent, and a second layer integral with the TFT layer, bent and laminated on the first layer; a display driver IC (DDI) in the bending portion; a touch wire on the protection layer to be connected to a touch circuit; and a detection wire on the protection layer in the deformation region and having an electrical value changeable by physical damage to the protection layer. The detection wire extends from the protection layer to the second layer so as to be electrically connected to the DDI.

A sensor system, particularly for monitoring the mixing of at least two fluids and a method for monitoring the mixture of at least two liquids. The present invention provides a sensor system for fluids, comprising at least two level sensor which are arranged vertically one upon the other on and connected to an electronic circuit board, four electrodes of four conductivity sensors which are arranged horizontally next to each other at the bottom of and connected to the electronic circuit board; and a temperature sensor which is connected to the electronic circuit board; a connector for connecting the electronic circuit board to a controller; wherein the electronic circuit board is embedded in a hot melt compound which is surrounded by an injection molded housing.

Embodiments are described herein for a sensor device created for determining and monitoring quality and strength developments in concrete and other materials using temperature and electrical resistivity parameters. The embodiments described herein may be utilized in the construction industry for real-time monitoring of concrete and cement structures or for monitoring the strength and quality of soils, polymers, and liquid additives as well. According to various embodiments, alternating current (AC) electrical and temperature measurements may be performed to correlate to the quality and performance of the concrete, polymers, treated soils, and other materials. These measurements may be made by compact sensor devices that are configured to read both temperature and AC electrical measurements continuously to quantify the performance of materials.

The present disclosure relates to a method for predicting a measured value of a measured variable of a sensor of process automation technology, includes the steps of capturing a first measured value at a first point in time; capturing a second measured value at a second, later point in time, formation of a differential value between the second and first measured values, filtering out the differential value using a filter with an infinite impulse response, and calculating a future measured value using the measured value at the second point in time, the filtered differential value, and a constant that characterizes the sensor. The present disclosure further relates to a conductivity sensor including a temperature sensor and a computer unit for executing a method.

A processing apparatus (700) is configured to receive a sense signal from a capacitive fluid sensor (610) comprising a first electrode (611) and a second electrode (612) with a sensing region (613) between the electrodes. The processing apparatus (700) is configured to receive an alternating drive signal applied to the capacitive fluid sensor (610). The processing apparatus (700) is configured to determine a complex impedance of the fluid sensor (610) based on the sense signal and the drive signal, the complex impedance comprising an in-phase component indicative of a conductivity quantity of a fluid in the sensing region and a quadrature component indicative of a capacitance quantity of the fluid sensor. The processing apparatus (700) is configured to determine a temperature of the fluid in dependence on at least the determined capacitance quantity of the fluid sensor (610).

A system and method of determining a target gas concentrations in a fluid environment using a gas sensor that improves the efficiency and accuracy of the gas sensor's measurements by taking measurements of electrical characteristics of the gas sensor at different temperatures, taking measurements during a transition between a first temperature and a second temperature, taking more frequent measurements, detecting when the gas sensor has reached equilibrium, using multiple sensors, accounting for offsets and drifts, reducing the time the sensor is not live, using various algorithms, or any combination thereof.