A sensor system includes a sensor operatively connected to a liquid storage vessel. An electronics unit is operatively connected to the sensor. The electronics unit includes a power source for providing electrical excitation to the sensor. An antenna is operatively connected to the electronics unit to receive data there from and to provide power to the power source. The antenna is wirelessly connected to a remote processing unit to transmit data thereto and to receive power there from.

A sensor system includes a sensor operatively connected to a liquid storage vessel. An electronics unit is operatively connected to the sensor. The electronics unit includes a power source for providing electrical excitation to the sensor. An antenna is operatively connected to the electronics unit to receive data there from and to provide power to the power source. The antenna is wirelessly connected to a remote processing unit to transmit data thereto and to receive power there from.

A flood sensor for automation systems comprising at least two electrodes connected with a measuring circuit arranged to detect a plurality of liquid levels; and wherein the measuring circuit has a zero static current consumption, having current flow only in the presence of fluid; and wherein if a liquid is detected, the output of the circuit is activated and a microcontroller leaves a zero-power state in which it normally stays; and wherein the microcontroller comprises a program or programs stored in a memory and configured for being run by means of the microcontroller, wherein said programs comprise instructions for: (a) measuring the impedance of the liquid that has activated the output of the measuring circuit; and (b) sending the measured impedance to a central control.

An aerosol-generating system includes a liquid storage portion configured to hold a liquid aerosol-forming substrate, a first electrode and a second electrode spaced from the first electrode, an aerosol-generator including one or more aerosol-generating elements and a control system. At least one of the aerosol-generating elements includes one of the first electrode and the second electrode. The first electrode and the second electrode are arranged such that at least a portion of the liquid storage portion is between the first electrode and the second electrode. The control system is configured to measure an electrical quantity between the first electrode and the second electrode and determine the amount of liquid aerosol-forming substrate held in the liquid storage portion based on the measured electrical quantity information.

An aerosol-generating system includes a liquid storage portion configured to hold a liquid aerosol-forming substrate, a first electrode and a second electrode spaced from the first electrode, an aerosol-generator including one or more aerosol-generating elements and a control system. At least one of the aerosol-generating elements includes one of the first electrode and the second electrode. The first electrode and the second electrode are arranged such that at least a portion of the liquid storage portion is between the first electrode and the second electrode. The control system is configured to measure an electrical quantity between the first electrode and the second electrode and determine the amount of liquid aerosol-forming substrate held in the liquid storage portion based on the measured electrical quantity information.

Measuring sensor, in particular of a level of a liquid, in particular for the lubricating oil of an internal combustion engine, the sensor comprising a body with a longitudinal extension with at least one related intermediate portion having cylindrical symmetry with respect to said longitudinal extension and a bushing internally complementary to said intermediate portion, so that said body can freely rotate in the bushing with respect to said longitudinal extension and wherein the bushing externally comprises fixing means for fixing the sensor to an opening of a container of said liquid.

A fluid (oil) storage tank is often in a remote place. A temperature sensor strip is affixed vertically down the outside of the tank. Each sensor sends its electronic signature and temperature to a local microprocessor. Various types of computations yield an accurate level indication on a local display, all powered by a car battery, solar panel or power supply. Data can be sent remotely as well. For explosive environments only a small processor is powered adjacent the tank. Then a second processor has the power to compute and analyze the raw temperature data and display it at a safe distance from the tank with only a twisted pair of low volt wires reaching the tank. Other non-explosive tanks such as a water tank can use a signal processor adjacent the strip for all data collection, computing and display functions.

A liquid level meter includes a first resistive temperature detector; a first temperature measuring body a liquid level detection section a temperature detection section detecting the temperatures of the first resistive temperature detector and the first temperature measuring body; a current control section determining a value of a current to apply to the first resistive temperature detector such that a difference between the temperatures of the first resistive temperature detector and the first temperature measuring body detected by the temperature detection section to be a first constant value; and a power supply unit supplying a current of the determined current value to the first resistive temperature detector; wherein the liquid level detection section determines whether the first resistive temperature detector is present in a liquid or outside of the liquid using the value of the current applied to the first resistive temperature detector.

A sensor assembly includes a capacitive probe, a resistive element, an electronic circuit and an optical interface. A capacitance of the capacitive probe and a resistance of the resistive element are indicative of characteristics of an environment. The electronic circuit is configured to convert the capacitance and the resistance into optical data. The optical interface is configured to provide the optical data to an optical link.

A liquid level sensor, a method for controlling the same, and a reactor with the same are provided. The liquid level sensor includes a first mounting base and a cable assembly. The cable assembly includes a metal shell disposed on the first mounting base; a heating element for heating the metal shell; and a temperature detector for detecting a temperature of the metal shell.