A detector detects the presence of liquid on a conveyed product using optics. The detector comprises a light source adjacent to a conveyor belt for directing a light beam into the conveyor belt body towards a top conveying surface and a light receiver for detecting the light beam after it reflects off of the top conveying surface. A reduction in intensity of the reflected light beam may indicate the presence of wetness on the top conveying surface.

The present invention relates to a liquid leakage sensing device that is capable of dividedly detecting water and chemical solutions in sensing liquid leakage using electrolysis, determining the kind of the leaking liquid detected, and being reused, not disposable. According to the present invention, the liquid leakage sensing device includes: a liquid leakage sensor (10) having a first electrode (11) and a second electrode (12) made of a conductive metal in such a manner as to be facedly spaced apart from each other by a given distance; a voltage/current amplifier (20) adapted to vary a voltage and a current to apply the varied voltage and current to the liquid leakage sensor (10); a current sensor (30) adapted to detect a value of current flowing between the electrodes of the liquid leakage sensor (10); and a controller (40) adapted to controlledly output a voltage applied between the first electrode (11) and the second electrode (12) of the liquid leakage sensor (10).

A battery pack which includes: a battery cell which contains a non-aqueous electrolyte, wherein the battery cell is a non-aqueous electrolyte secondary battery; a casing which stores the battery cell; and at least one liquid leakage sensor which detects liquid leakage from the battery cell, wherein the casing and/or the battery cell have a leaked liquid retention region in which the non-aqueous electrolyte tends to be retained when the non-aqueous electrolyte leaks out of the battery cell, wherein the liquid leakage sensor outputs measurement information as a detection result without using a charging/discharging circuit which charges and discharges the battery cell, and wherein at least one sensor unit of the liquid leakage sensor is provided in the leaked liquid retention region.

A system for detecting a leak in a condensate generating device, the system including a pH sensor configured for measuring the pH of a condensate of the condensate generating device; and a controller operably connected to the pH sensor, the controller configured for measuring a rate of pH change over time of the condensate and a pH level of the condensate, wherein if the rate of pH change over time is greater than the pre-determined rate of pH over time and the pH level is greater than the pre-determined pH level, a leak in the condensate generating device is determined to have occurred.

A container for storing liquids includes an inner layer including a storage space for storing liquids; an outer layer; and multiple spacers fastened between the inner layer and the outer layer to form multiple compartments. The spacer includes a first surface and a second surface. The first surface is secured to an adhesive layer of the inner layer. The first surface has many cavities. The second surface is secured to the outer layer and having projections complimentarily secured to the cavities. A manufacturing method of the container is also provided. Therefore, it can solve the problem permeation and adhesive failure caused by leaking. It can generate an early alarm by detecting any leaking or permeation of the container.

A hydrogen sensor includes a communication terminal, a plurality of identification terminals, and an ID setting section. The communication terminal is connected to a first communication bus or a second communication bus, and communicate with a vehicle ECU. Each of the plurality of identification terminals is set to either an open state (OPEN) in which the identification terminal is not connected to any potential or a grounded state (GND) in which the identification terminal is connected to a ground potential. The ID setting section sets an identifier in either a standard format or an extended format, according to a difference in the communication bus to which the communication terminal is connected.

Aspects of the present disclosure are directed toward detection of leakage from an enclosed component using an apparatus. The apparatus includes a printed circuit board (PCB) including a first conductive trace, a second conductive trace, and sets of terminals electrically connected to the first and second conductive traces configured and arranged to indicate changes in impedance caused by leaked liquid. The respective portions of the first and second conductive traces are interleaved, and configured and arranged to suspend flow of the leaked liquid from an enclosed component, thereby causing a change in impedance between at least one of the sets of terminals.

A leak detection system for detecting leaks in pressurized containers, the system comprising a leak test conveyor for moving each container and an accumulation tunnel through which the leak test conveyer extends, wherein the accumulation tunnel and the leak test conveyer together define at least one enclosed accumulation volume, each enclosed accumulation volume being sized to accommodate only a single container, thereby to allow gas leaking from the single container to accumulate, and a gas sensor for sensing accumulated leaked gas from the single container.

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.

A leakage detection system for spent fuel cooling pools is related to the field of testing and measurement instrumentation and is aimed at monitoring leakages in the storage facilities, mostly in spent fuel cooling pools at NPPs.

In the leakage detection system for spent fuel cooling pools the welded joints in the pool are additionally fenced with a metal guard which are connected via valve installed tubes to the pipeline, which, in turn, is connected on both of its sides to the leakage collector tank via a receiving valve and a return valve. The leakage collector tank is equipped with a level control sensor.

A leakage detection system for spent fuel cooling pools ensures control over airtightness of welded joins in the pool and allows for detection of leaking welded joints without preliminary emptying the pool which enhances the radiation safety of the pool and reduces the maintenance time.