A vertical tubular defines a measurement chamber. A first valve is nearer an upper end of the vertical tubular than a lower end of the vertical tubular. The first valve defines a first actuable passage fluidically connected to the measuring chamber. A second is valve nearer the lower end of the vertical tubular than the upper end of the vertical tubular. The second valve defines a second actuable passage fluidically connected to the measuring chamber. A third valve is vertically aligned with the first valve. The third valve is on an opposite side of the vertical tubular from the first valve. The third valve defines a third actuable passage fluidically connected to the measuring chamber. The fourth valve defines a fourth actuable passage fluidically connected to the measuring chamber. A flange is each end of the vertical tubular.

A vertical tubular defines a measurement chamber. A first valve is nearer an upper end of the vertical tubular than a lower end of the vertical tubular. The first valve defines a first actuable passage fluidically connected to the measuring chamber. A second is valve nearer the lower end of the vertical tubular than the upper end of the vertical tubular. The second valve defines a second actuable passage fluidically connected to the measuring chamber. A third valve is vertically aligned with the first valve. The third valve is on an opposite side of the vertical tubular from the first valve. The third valve defines a third actuable passage fluidically connected to the measuring chamber. The fourth valve defines a fourth actuable passage fluidically connected to the measuring chamber. A flange is each end of the vertical tubular.

A device to measure the material level inside the container includes a housing unit removably attachable to a cap of a container for holding a beverage, wherein the housing unit is configured to remain attached to the cap when the cap is at least partially removed from the container. The device further includes, a signal producing unit located in the housing unit, a first sensor located in the housing unit to sense a beverage level in the container and a controller located in the housing unit. The controller is configured to receive from the first sensor an indication of a beverage level in the container and activate the signal producing unit based at least on the indication of the beverage level in the container.

An injection device, in particular an auto-injector, with a single-use part for dispensing an injection solution has a sensor for acquiring a signal, with which an indicator can be determined, which represents a state or a change in state in a process for dispensing the injection solution with the single-use part. Additionally, the injection device has a reusable part, which is held in a detachable manner by coupling to the single-use part and is coupled via a signal connection, wherein the single-use part has the sensor, and/or wherein the reusable part has a reporting system for detecting the single-use part.

A glue overflow detection system and method, includes a camera module and a processor. The camera module is configured to capture an image which includes a blue chromaticity image and a red chromaticity image. The processor obtains a chromatic-aberration difference image according to the blue chromaticity image and the red chromaticity image. The processor obtains a block feature image according to the chromatic-aberration difference image. The processor obtains a longitudinal inter-block difference image and a transverse inter-block difference image according to the block feature image. The longitudinal inter-block difference image includes a plurality of longitudinal block difference blocks each of which has a longitudinal difference value. The transverse inter-block difference image includes a plurality of transverse block difference blocks each of which has a transverse difference vale. The processor determines that a glue overflow image exists in the image according to the longitudinal difference values and the transverse difference values.

The invention is embodied by a system that employs an inline metering station for (a) measuring both pressure flow and free surface flow in underground conduits without having to physically contact the fluid in the conduit, (b) operating under laminar flow and turbulent flow conditions, (c) providing continuous flow measurement, (d) offering remote data transmission to central control room or mobile device for real-time accessibility (e) detecting line sedimentary deposits (f), making computational adjustments, and (g) alerting maintenance for cleaning. In addition, embodiments of this invention are not disrupted by sewer pipe cleaning and are not limited by sewer flow velocity, depth, or Froude number.

The preferred system comprises a pair of risers (or “tubes”) mounted on top of a buried underground conduit. On top of each riser is a sensor for measuring the distance between the sensor and the surface of the fluid that is flowing below the sensor (the “sensor-fluid distance”). Using as-built conditions, the sensor-fluid distance can be used to find real-time flow depth and velocity through the underground conduit.

A smart parts bin apparatus including a light source configured to emit a light signal, a detector configured to detect the light signal emitted by the light source, an inner surface defining a volume configured to retain one or more parts, wherein the light source and the detector are each affixed to the inner surface and arranged on opposing sides of the inner surface within the volume, and a signal source configured to provide an inventory status signal, including a first type of signal when the light signal emitted by the light source is not detected by the detector indicating that a level of parts in the smart parts bin apparatus is above a threshold inventory level, and a second type of signal when the light signal is detected by the detector indicating that the level of parts in the smart parts bin apparatus is below the threshold inventory level.

A trap bowl is provided to accumulate liquid droplets from a filter, as a liquid content. The trap bowl includes a transparent vertical prism, The transparent vertical prism includes a face that forms a vertical transparent surface facing against a content of the section, The face can provide a first angle of total reflection when content of the section is a type of gas, and a second angle of total reflection when the content of the section is the liquid content. A light source may emit a light beam incident on the face at an angle of incidence. The angle of incidence results in reflection of the light beam, striking the light receiver, when the face has the first angle of total reflection, and results in refraction of the light beam, missing the light receiver, when the face has the second angle of total reflection.

An apparatus for accumulating a fluid, the apparatus including a drain bottle for containing the fluid, a reservoir having an outlet towards the drain bottle, the reservoir and the drain bottle communicating with each other via a valve provided in the outlet, a suction aperture connectable with a suction pump for creating a vacuum in the reservoir, an optical sensing device operably coupled to the reservoir and adjusted to measure the volume of the fluid standing in the reservoir, the optical sensing device comprising a light source and a detector, wherein the light source is configured to emit light towards the reservoir and the detector is configured to detect an intensity of the light emanating from the reservoir, and at least one light directing means for directing the light on its path from the light source to the detector.

An add-on module for a sensor, such as a fill and/or limit level sensor, comprising a coupling unit, which is arranged to be communicatively couplable to at least one predetermined sensor, and a control unit, which is configured to enable and/or disable data processing of the at least one predetermined sensor. Furthermore, the invention also relates to a sensor unit for detecting a fill level and/or limit level, comprising at least one sensor, and such an additional module, as well as a method for controlling such a sensor unit.