A magnetic debris level measuring device for a magnetic filter is disclosed. The magnetic debris level measuring device includes a magnetometer and a temperature sensor. The temperature measured by the temperature sensor is used to calculate a corrected magnetometer reading, which in turn can be used to determine the amount of captured magnetic debris held within the filter. The device has a stored threshold for the corrected magnetometer reading, and when the corrected magnetometer reading crosses the stored threshold a notification is issued that the filter is full. If it is detected that debris continues to be captured after the full notification has been issued, the stored threshold will be updated accordingly.

A magnetic debris level measuring device for a magnetic filter is disclosed. The magnetic debris level measuring device includes a magnetometer and a temperature sensor. The temperature measured by the temperature sensor is used to calculate a corrected magnetometer reading, which in turn can be used to determine the amount of captured magnetic debris held within the filter. The device has a stored threshold for the corrected magnetometer reading, and when the corrected magnetometer reading crosses the stored threshold a notification is issued that the filter is full. If it is detected that debris continues to be captured after the full notification has been issued, the stored threshold will be updated accordingly.

A status monitoring system includes a filter cap operatively connected to a filter housing having an inlet port and an outlet port. A magnet is affixed to the bottom side of the filter cap and extends down into the filter housing. A first thermistor is embedded in the magnet and physically isolated from the fluid for measuring the lagging temperature of the fluid due to the insulating effect of the filtered magnetite surrounding the magnet, while a second thermistor is placed inside the filter housing for measuring the temperature of the fluid. A difference between the measured temperatures, t, is then determined. When the t reaches a pre-determined point, the status monitoring system would send notification to its user and inform the user to perform the maintenance work on the magnetic filters.

A particle counter includes a ceramic-made vent pipe, electric charge generating elements that generate electric charges by gaseous discharge, an electric field generating electrode, a collecting electrode, an electric field generating electrode and a removing electrode. Ground electrodes included in the electric charge generating elements are embedded in the vent pipe. Discharge electrodes included in the electric charge generating elements, the electric field generating electrodes for collection and removal, the collecting electrode, and the removing electrode are disposed along the inner wall surface of the vent pipe. The electric charge generating elements are disposed along the inner wall surface of the vent pipe.

An exemplary method and system is disclosed that facilitate the integration of multiplexed single-cell impedance cytometry in a high throughput format, which can be deployed upstream from microfluidic sample preparation and/or downstream to microfluidic cell separation. In exemplary method and system may employ impedance-based quantification of cell electrophysiology on the same microfluidic chip (i.e., on-chip) to provide distinguishing phenotypic information on the sample, without the need for additional sample handling, preparation or dilution steps as would be needed for other flow cytometry techniques.

An aspirating smoke sensing device, method, and apparatus for fire detection are provided, and the device is provided with a charger (2), a charge collector (3), a controller (4), an air intake structure (1), and a negative pressure source for air path detection (9). The air intake structure (1) is communicated with an input port of the charger (2), an output port of the charger (2) is communicated with the charge collector (3), an output port of the charge collector (3) is communicated with the negative pressure source for air path detection (9), and the controller (4) is electrically connected to the charge collector (3).

A method for detecting an analyte in a sample, the method comprising contacting the analyte in a sample with nanoparticles comprising a capture probe for capturing said analyte, the capture probe being configured to act as a center for controlled aggregation of nanoparticles with said analyte to form an aggregate of predefined form, detecting the analyte by detecting the shape and/or size of the aggregate is provided. Also provided are nanoparticles comprising a capture probe for capturing an analyte, wherein the capture probe is configured to act as a center for controlled aggregation of nanoparticles with the analyte to form an aggregate of particular detectable size and/or shape, and an assay.

Multi-domain electrostatic filters and methods, systems and computer readable media for control thereof are described.

A system for reducing dust emissions resulting from tire abrasion, comprising a collecting unit (1), arranged at a distance from the tread (4) of a tire (5) and has at least one first electromagnet and/or permanent magnet (2). At least the material with which the tread (4) of the tire (5) is formed is magnetic or is ferromagnetically, ferrimagnetically or anti-ferromagnetically magnetisable, so that the tire abrasion particles (6) created as a result of abrasion of the tread (4) are magnetic or are ferromagnetically, ferrimagnetically or anti-ferromagnetically magnetisable. The at least one first electromagnet and/or permanent magnet (2) is designed to magnetise tire abrasion particles (6) and to accumulate the magnetized tire abrasion particles (6) detached from the material of the tread (4) in a collection point (3), arranged on a vehicle.

An ionization chamber is provided with a series of parallel plates spaced from each other and with holes passing therethrough. Alternating plates have either a highest high voltage or a lower high voltage provided thereto, such as through a DC transformer coupled to an electric power source. Holes in alternating plates are preferably offset so that airflow through the plates occurs along curving pathways. The plates are sufficiently highly charged to cause carbon dioxide to be ionized and for carbon ions to become trapped within wells defining lowest regions of electric charge within an electric field inside the ionization chamber. Fans control airflow through the ionization chamber. A dehumidifier is provided upstream of the ionization chamber to reduce moisture content within the incoming gas. After the carbon has collected within the wells, harvesting of the carbon ions as carbon nano particle powder can occur within a carbon cache.