A floating thermometer includes a light-transmitting suspension chamber, a control main board, a temperature measurement device, a display device and a lighting device; the temperature measurement device. The control main board is used for controlling the lighting device to emit alternately flickering seven-color light. The suspension chamber includes a mounting cover body and a mounting seat. The control main board, the temperature measurement device, the display device and the lighting device are all arranged in the suspension chamber. The mounting cover body is hermetically covered at the first mounting opening, so that the suspension chamber can be suspended on liquid; the temperature measurement device is arranged on a lower side of the mounting seat; a lower side of the mounting seat and the temperature measurement device are put into the liquid; and the display device is used for displaying temperature value of the liquid.

A fluid connector and method for measuring an operating parameter of a fluid conduit is disclosed. The fluid conduit includes a conduit wall enclosing a fluid channel wherein a fluid flows through the fluid channel from a first opening to a second opening. At least one sensor element is embedded within the conduit wall along the direction of the fluid channel between the first opening and the second opening that is used to measure the operating parameter.

A sensor unit includes a sensor, a coupler, and a body. The coupler is connected to the sensor. The sensor is to be connected to an outside of the sensor unit via the coupler. The body supports the sensor and the coupler. The body is to be attached to an equipment from an outside of the equipment which includes an object to be detected by the sensor. The body includes an external appearance to distinguish the sensor unit from an another sensor unit which has an another sensor different from the sensor.

A method is provided for determining the fuel temperature in the high-pressure zone of a fuel injection system of a motor vehicle. The fuel injection system has at least one injector operated by a servo valve which is actuated by means of a piezo actuator. After an injection process has been carried out, the piezo actuator is discharged after the injection has ended in such a way that the servo valve can close, but a non-positive connection remains between the piezo actuator and the servo valve. This condition of reduced charge is maintained. The pressure oscillation of the actuator voltage resulting from this is recorded and from this the hydraulic natural frequency of the enclosed high-pressure volume of fuel is deduced. The prevailing fuel temperature can be determined from the natural frequency.

The present disclosure relates to apparatuses, kits and methods for testing quality. The water testing apparatus for analyzing at least one parameter and/or at least one substance from water flowing through a faucet and/or a water pipe comprises at least one sensor configured to directly contact said water flowing through said faucet and/or said water pipe, and an analyzer for analyzing said at least one parameter and/or at least one substance, said analyzer being in communication with said at least one sensor.

An engine coolant temperature sensor configured to earth through the engine coolant such that an alarm will trigger when coolant is absent.

An FC system disclosed herein may comprise a plurality of FC units, a cooler, and a controller. Each of the FC units may comprise a FC stack, a supply passage / a return passage / a circulating passage through which refrigerant passes, and first temperature sensor. The supply passage supplies the refrigerant from the cooler to the FC stack. The return passage returns the refrigerant to the cooler. The circulating passage is connected to the supply passage and the return passage. The first temperature sensor is configured to measure a temperature of the refrigerant in the supply passage at a position upstream of a merging point of the supply passage and the circulating passage. When measured values of the first temperature sensors of the plurality of the FC units do not match, the controller is configured to provide notification about malfunction of the first temperature sensor.

An apparatus for measuring liquid volume in a container includes a plurality of light sources for emitting electromagnetic radiation (EMR) toward the container, a plurality of sensors optically coupleable to the plurality of light sources, each sensor of the plurality of sensors for detecting the EMR emitted by at least a portion of the plurality of light sources, a temperature sensor for measuring at least one temperature associated with a liquid in the container, and at least one processor for receiving data representative of the portion of the detected EMR from each of the plurality of sensors, comparing the at least one measured temperature to a temperature guideline to identify any temperature events associated with the received data; normalizing the received data based on any temperature events associated with the received data; and converting the normalized data into a signature representative of the EMR detected by the plurality of sensors.

A water control system which encompasses a leak sensor and a water control unit adapted for installation on a water supply line, both capable of wireless data communication with a gateway acting as an interface between the leak sensor and water control unit and a cloud server or a remote user application.

An ostomy bag can include one or more sensors for measuring one or more metrics. An ostomy wafer can also include one or more sensors for measuring one or more metrics. The sensors can be temperature sensors and/or capacitive sensors, for example, and the metrics can include bag fill, leakage, skin irritation, and phase of stoma output, among others.