This temperature detection circuit includes: a temperature sensor having a resistance value that changes according to a change in temperature; an AC power supply that supplies AC power to the temperature sensor; a resonance circuit connected to the temperature sensor, the resonance circuit having an impedance that has an extreme value when AC power having a resonance frequency is supplied; and a voltage detection circuit that detects a voltage applied to any of a plurality of elements connected to the AC power supply. The resonance frequency in the resonance circuit and the frequency of the AC power are set to coincide with each other.

In described examples, a measurement circuit includes an isolated power supply that generates an output signal in response to an input signal. A signal processing circuit is coupled to the isolated power supply and generates a first signal in response to a sense signal. A load manipulator circuit is coupled to the signal processing circuit and the isolated power supply. The load manipulator circuit receives the first signal. A detect circuit is coupled to the isolated power supply and generates a second signal in response to the input signal.

A battery-free sensor probe and system for measuring the temperature of food The sensor probe includes a probe portion and a handle. The probe portion has a temperature sensor, a circuit board and a radio frequency identification device. The handle has an antenna connected to radio frequency identification device and the circuit board. The sensor probe harvests energy from a radio frequency transmitter positioned near the sensor probe.

A device monitors the operating temperature of at least one set of bearings in a plurality of sets of bearings. The at least one set of bearings is arranged between a shaft and a carrier. The carrier has at least one temperature sensor that senses the temperature of the at least one set of bearings and generates a signal representative of an operating temperature of the at least one set of bearings. The at least one temperature sensor is operatively electrically connected to at least one controller. The controller processes the signal from the temperature sensor, including determining the operating temperature of the respective at least one set of bearings and whether the operating temperature of the respective at least one set of bearings exceeds at least one threshold temperature. The controller memory holds a unique identifier associated with the at least one bearing set.

An arrangement for monitoring an aseptic manufacturing process includes product condition sensors capable of making closely spaced measurements of a product condition such as temperature or humidity. The measurements are made using closely spaced sensors arranged in a linear array on a single probe, which may be used to take measurements at multiple levels within the product. Data from the sensors is transmitted to a data collection point via short range wireless digital communications. The sensors may be used to measure temperature and humidity at a single point. For example, when the sensors are used in pharmaceutical freeze drying, the location of a sublimation front may be calculated for each vial, and the freeze drying process may be controlled using the data.

The present disclosure relates to a control device for a food thermometer and a system comprising an electric food thermometer and the control device. By means of the control device, the energy consumption of the food thermometer can be kept low.

The control device for a food thermometer, which can control the measurement of temperatures by the food thermometer, is configured such that intervals between temperature measurements by the food thermometer depending on the preparation of a food are controlled by the food thermometer.

A sealed enclosure power control system for controlling power to an electrical component within an enclosure. The sealed enclosure power control system generally includes an electrical component within the sealed enclosure, a first connector on the sealed enclosure adapted to provide a sealed electrical interface to the electrical component. The first connector has at least one first connector conductor element, and the system further includes a battery within the sealed enclosure, and the system also has a second connector, wherein when the first connector and the second connector are connected together, electrical power from the battery is applied to the electrical component, and when the first connector and the second connector are not connected together, the electrical power is not applied to the electrical component.

A measuring device includes: a support which supports a measurement target object; a furnace which heats the measurement target object; an elevating mechanism which moves the furnace; and an electronic balance which measures the weight of the measurement target object, the elevating mechanism moving the furnace so that the measurement target object which is supported by the support is housed in the furnace.

Monitors are for pressurized systems are described. These may include batteryless monitors that run on power harvested from their environments.

The present disclosure provides a temperature detection system arranged in a temperature detection device, and a charging device thereof. The temperature detection system includes a power supply, a Bluetooth chip configured to detect a temperature of an object to be measured, output detection pulses and including a thermistor module that is configured to detect an ambient temperature of the object to be measured to obtain an intermediate temperature value, and a pulse temperature sensor arranged around the Bluetooth chip. The Bluetooth chip is configured to receive the detection pulses, determine a final temperature value according to the intermediate temperature value and number of the detection pulses per unit time, and convert the final temperature value into Bluetooth signals to output. The present disclosure can ensure detection redundancy and improve detection accuracy, by providing two temperature detections to calculate the final temperature value according to a preset software program.