A drag force sensor on a fountain solution carrier roller surface measures drag force of a fountain solution layer on the fountain solution carrier roller surface in real-time during a printing operation. The measured drag force is used in a feedback loop to actively control the fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.

A drag force sensor on a fountain solution carrier roller surface measures drag force of a fountain solution layer on the fountain solution carrier roller surface in real-time during a printing operation. The measured drag force is used in a feedback loop to actively control the fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.

A flow detector for monitoring an adhesive flow in an adhesive applicator includes a sensor device arranged in the adhesive flow. The sensor device is formed as a capacitive sensor.

A flow detector for monitoring an adhesive flow in an adhesive applicator includes a sensor device arranged in the adhesive flow. The sensor device is formed as a capacitive sensor.

A device (10) for determining a parameter of a fluid flow includes an elastically deformable boom (23, 28, 33, 42, 47), with an inflow area (29, 31, 32, 37, 38, 39, 40, 44, 45, 46, 49, 50) for fluid and a measurement apparatus (16) measuring deformation of the boom. A section of the inflow area is aligned askew and/or curved to a main fluid inflow direction (25). The boom has an inflow structure (24, 30, 34, 43, 48) on one free end. The inflow structure has the fluid inflow area. To determine the parameter of the fluid flow at high resolution, in particular a high angle resolution, the boom has a reflection surface (27) on a side facing away from the inflow structure and the measurement apparatus (16) has a laser (17). A beam axis (26) of the laser (17) is directed to the reflection surface (27) of the boom.

A device (10) for determining a parameter of a fluid flow includes an elastically deformable boom (23, 28, 33, 42, 47), with an inflow area (29, 31, 32, 37, 38, 39, 40, 44, 45, 46, 49, 50) for fluid and a measurement apparatus (16) measuring deformation of the boom. A section of the inflow area is aligned askew and/or curved to a main fluid inflow direction (25). The boom has an inflow structure (24, 30, 34, 43, 48) on one free end. The inflow structure has the fluid inflow area. To determine the parameter of the fluid flow at high resolution, in particular a high angle resolution, the boom has a reflection surface (27) on a side facing away from the inflow structure and the measurement apparatus (16) has a laser (17). A beam axis (26) of the laser (17) is directed to the reflection surface (27) of the boom.

Apparatus features a signal processor or signal processing module configured to: receive signaling containing information about a central air-core of an overflow pipe of a hydrocyclone where fluid flow is concentrated in an outer annular region of the overflow pipe that is against an inner wall of the overflow pipe during a normal operation of the hydrocyclone; and determine corresponding signaling containing information about a collapse of the central air-core of the overflow pipe of the hydrocyclone during an abnormal operation of the hydrocyclone, based upon the signaling received. The signaling contains information about a fluid flow rate of the fluid flow by detecting a change in the magnitude of a force and/or a moment on the probe.

A flow heater for new forms of vehicles. The flow heater comprises a passageway for liquid, a heating source, a swing mechanism arranged in the passageway, and a sensor for detecting a position of the swing mechanism. In some embodiments, the swing mechanism includes a flap and a stopper wherein the flap is hinged to an inner wall and the stopper is fixed to an inner wall and located to abut the flap in the absence of flow.

A flow heater for new forms of vehicles. The flow heater comprises a passageway for liquid, a heating source, a swing mechanism arranged in the passageway, and a sensor for detecting a position of the swing mechanism. In some embodiments, the swing mechanism includes a flap and a stopper wherein the flap is hinged to an inner wall and the stopper is fixed to an inner wall and located to abut the flap in the absence of flow.

A system and method for providing a fluid flow strain gauge that may be mounted inside a pipe and connected to a base unit that uses capacitive or resistive technology to determine a direction and a rate of flow of a fluid through the pipe by measuring the force applied to the strain gauge by the flow of fluid.