An intake device includes an air filter that filters intake air for an internal combustion engine, a filter casing housing the air filter, and an air physical quantity sensor. The filter casing includes an intake passage to allow the intake air to pass from upstream to downstream of the air filter. The filter casing has a passage wall portion that is electrically conductive and exposed to the intake passage on a downstream side of the air filter. The air physical quantity sensor has: a sensor element that detects a specific physical quantity related to the intake air on a downstream side of the air filter; and a grounding structure electrically connected to the passage wall portion for grounding the sensor element.

An intake device includes an air filter that filters intake air for an internal combustion engine, a filter casing housing the air filter, and an air physical quantity sensor. The filter casing includes an intake passage to allow the intake air to pass from upstream to downstream of the air filter. The filter casing has a passage wall portion that is electrically conductive and exposed to the intake passage on a downstream side of the air filter. The air physical quantity sensor has: a sensor element that detects a specific physical quantity related to the intake air on a downstream side of the air filter; and a grounding structure electrically connected to the passage wall portion for grounding the sensor element.

A sensor control system of a food processing system includes a logic processor operatively coupled to an electrode. The logic processor is configured to receive a sensor signal from the electrode, the electrode configured to collect the sensor signal from water used within the food processing system, process the sensor signal to determine a chemical measurement of the water, and generate an electrochemical cleaning control signal for the electrode to interact with the water to electrochemically clean the electrode based upon a user input signal.

A sensor control system of a food processing system includes a logic processor operatively coupled to an electrode. The logic processor is configured to receive a sensor signal from the electrode, the electrode configured to collect the sensor signal from water used within the food processing system, process the sensor signal to determine a chemical measurement of the water, and generate an electrochemical cleaning control signal for the electrode to interact with the water to electrochemically clean the electrode based upon a user input signal.

A method of controlling the water level in ground in which drainage pipes have been laid, said method comprising: a) providing the ground with water passing through the drainage pipes in a natural way and/or by active intervention using a control system, b) creating an underpressure or overpressure of water and/or air in the drainage pipes by means of the control system, thereby causing water or air to be extracted from or supplied to the soil via the drainage pipes, and c) programming the programmable control system in such a manner that the control system determines the points in time, durations, volumes and/or order of the water supply to the drainage pipes and of the generation of an underpressure or overpressure of water and/or air.

In some embodiments, a system for pre-wetting a filter includes a filter, a piping system, a first gas, a second gas, a first buffer tank, and a second buffer tank. The first gas drives the solvent to clean the filter. The two buffer tanks store the solvent discharged from the filter. The second gas selectively drives the solvent in the first buffer tank to return to the filter and then to be discharged into the second buffer tank. Alternatively, the second gas selectively drives the solvent in the second buffer tank to return to the filter and then to be discharged into the first buffer tank.

Examples described herein provide a method that includes determining, by a processing device, a first pressure differential across a first high-pressure filter of an automated high-pressure filter system. The method further includes selectively controlling, by the processing device and based at least in part on the first pressure differential, a switching unit of the automated high-pressure filter system to cause fluid to selectively flow through at least one of the first high-pressure filter and a bypass line of the automated high-pressure filter system.

This disclosure relates generally to process filtration systems, and more particularly to systems utilizing tangential flow filtration.

A filtering system (10) includes a casing (12) internally defining a cavity (14) and has an inlet (16) configured to receive a fluid and leading into the cavity (14), and an outlet (18) configured to deliver the fluid coming from the cavity (14). A filtering assembly (100) is contained in the cavity (14) and is configured to be crossed by the fluid entering the casing (12) through the inlet (16), so as to trap any solid particles, in particular microplastic ones, contained in the fluid. A compacting assembly (200) situated in the cavity (14) is configured for collecting and compacting the solid particles trapped by the filtering assembly (100). A driving assembly (300) is configured to drive the compacting assembly (200).

A filtering device generally constructed from two panels is disclosed herein. The device may be used for the isolation, concentration, and detection of particles with particular chosen characteristics. A first panel, an etched or molded filter panel, includes an array of V-shaped channels wherein the walls of the V-shaped channels have spacer pads and offset walls that create filtering pores when the filter panel is mated to a flat surface of a second panel. The use of semiconductor processing equipment provides incredible accuracy as well as the ability to construct extremely small features.