A fluid measuring device includes a measuring head device having a measuring head with separated and electrically insulated electrodes and measuring head contacts each connected to a respective electrode. A measuring circuit includes terminal contacts each connected to a respective measuring head contact. The measuring circuit includes a current source for pulsed energizing of the measuring head connected to the terminal contacts. The measuring circuit includes an output circuit between the terminal contacts including a measuring capacitor and an evaluation circuit ascertaining state-of-charge information regarding the measuring capacitor. A supplementary circuit in the measuring head is connected to the measuring head contacts and establishes basic capacitance and resistance properties therebetween corresponding to capacitance and resistance properties between the measuring head contacts upon contact with predefined partial wetting of the electrodes by conductive fluid having predefined conductivity without the supplementary circuit. A measuring head device is also provided.

High voltage leak detection can be used to detect leaks in containers and is particularly useful in pharmaceutical applications in which small leaks in sterile containers such as viles, syringes, ampules etc. must be detected reliably. The high voltage leak detection relies upon the fluid within the container being at least partially conducting. The container, and so the fluid within it, are spun at a high RPM to force the liquid into any cracks or holes which can then be detected by monitoring the electrical characteristics. Advantageously, the leak detection may be performed with the container in a vertical orientation by spinning the container at an RPM sufficient to spin the liquid up the sides of the container.

Methods and systems for detecting and measuring gas flow are disclosed in which lidar distance information, acquired during the detection of gas using a lidar sensor, is used together with local wind data to determine a rate of flow for the detected gas. The local wind data, which may comprise one or more vectors or a 3D wind model, may be determined based on prevailing wind data and the lidar distance information, and can use computational fluid dynamics (CFD) models to determine the wind velocity through 3D structures identified using the lidar sensor. The detection of gas flow using the disclosed technology may be particularly useful for the remote detection and quantification of leaks from natural gas (methane) wells and pipelines to locate, quantify and map fugitive emissions.

The invention relates to a device (10) with leak detection for a medium (14) capable of forming drops for a motor vehicle, preferably utility vehicle. The device (10) comprises a container (12) for receiving the medium (14) capable of forming drops, preferably a non-conductive medium (14) capable of forming drops, and an electrical conductor (16) which is guided through a sealed-off conductor bushing (32) of the container (12). The device (10) further comprises a detection device (20), which is arranged outside the container (12), for detecting a leak in the conductor bushing (32) through which the medium (14) capable of forming drops emerges from the container (12) along the electrical conductor (16).

A method and apparatus are for maintaining a structure for carrying a fluid. In addition, a method, apparatus and system are for detecting leakage from a structure carrying a fluid. The methods include: providing a jacket covering at least a portion of a structure carrying a fluid, the jacket forming a pocket between the jacket and the structure, the pocket having an inlet and an outlet; injecting a drive fluid into the pocket in a flow through the inlet; and moving a potentially harmful fluid in the pocket with the flow of injected drive fluid out of the pocket through the outlet. The method may further include detecting the potentially harmful fluid by use of a detector downstream of the pocket. The described apparatuses and/or the system may be for performing one or more of the methods.

Data characterizing a fuel storage facility can be received from one or more of a plurality of sensors disposed in the fuel storage facility. A fuel leak prediction for the fuel storage facility can be determined by a server, based on the received data, and further based on at least one predictive model that predicts whether a fuel leak exists in the fuel storage facility. The fuel leak prediction can be provided by the server. Related apparatus, systems, methods, techniques, and articles are also described.

An oil leak detection device includes a pair of permanent magnets, a plurality of commutators, a coil, a pair of brushes, and a current sensor. An N-pole and an S-pole of the pair of permanent magnets face each other. The plurality of commutators are attached to an output shaft. The coil is wound onto the output shaft inside the pair of permanent magnets in the radial direction of the output shaft. The coil is electrically connected to the plurality of commutators. The pair of brushes are attached to a housing and are capable of coming into contact with each of the plurality of commutators. The current sensor detects an induction current flowing between the pair of brushes and the housing.

A vehicle includes a system performing a method of operating the vehicle. The system includes a battery pack, a sensor associated with the battery pack, a cooling system for cooling the battery pack, and a processor. The processor is configured to measure a battery pack parameter of the battery pack for an occurrence of a battery pack fault, measure a sensor parameter for the occurrence of a sensor fault in the sensor, measure a cooling system parameter of the cooling system for the occurrence of a cooling system fault, determine an ingress of a fluid into the battery pack based on the occurrence of the battery pack fault and one of the sensor fault and the cooling system fault, and perform an action based on the ingress of the fluid into the battery pack.

In a battery pack, a battery monitoring circuit is connected to a battery module including a plurality of battery cells to monitor the battery module. The detection sensor detects an electrolyte leaking in the battery module, and includes a first resistor and a second resistor connected in series between a power supply supplying a first voltage and a ground terminal, and a variable resistor connected to the first resistor in parallel and having a resistance that varies depending on the electrolyte leaking in the battery module. The detection sensor transfers, as a sensing voltage, a voltage at a contact between the first resistor and the second resistor to an input terminal of the battery monitoring circuit.

The present application provides a liquid cooling system including a water distribution-collection device, multiple liquid cooling bodies and multiple first liquid guide tubes. One end of each first liquid guide tube is communicated with at least one corresponding liquid cooling body, and the other end of the first liquid guide tube is connected to a port of the water distribution-collection device through a corresponding cut-off assembly. The cut-off assembly includes a first connection device and a second connection device that are detachable and separable from each other. The first connection device is arranged at a tube mouth of the first liquid guide tube and is configured to block the corresponding first liquid guide tube when being disassembled from the second connection device. The second connection device is arranged at the port and is configured to block the corresponding port when being disassembled from the first connection device.