A compact, portable, low-cost electrostatic bioaerosol sampler device is provided for collection of aerosolized biological and non-biological particles. The device may be used for long-term, large-scale deployment. With a low-pressure design, the device can sample a high flowrate of 10 lit/min with a low-power fan. The device collects dust particles with a nominal size range of 1-10 μm, with an efficiency of >60%. The device may include aerosol sensing components, a particle ionizer, and an electrostatic precipitator. A removable cassette includes a ground plate for collection of ionized particles and a high voltage plate opposite the ground plate. A divider may be included beneath the ionizer to facilitate separation of collected particles by size on the ground plate.

The present invention includes: a cell holding body that holds a measurement cell housing a measurement sample and a dispersion medium; a cover attached to the cell holding body so as to cover the measurement cell; a rotation section that rotates the cell holding body and applies centrifugal force to the measurement cell; a light source that is provided on one side of a rotation passage region of the measurement cell and irradiates the cell with light; a photodetector that is provided on another side of the rotation passage region of the measurement cell and detects light transmitted through the cell; and a particle diameter distribution arithmetic section that acquires a light intensity signal from the photodetector and calculates a particle diameter distribution. The rotation passage region of the cover is located inside an optical path of light passing between the light source and the photodetector.

An electro-optical device for taking flow measurements includes a measurement tank through which a flow of fluid to be characterized flows, at least first and second guns for emitting light having separate spectra, a triggering gun allowing diffraction to be measured at small angles and a receiving gun allowing a measurement of attenuation and at least one fluorescence to be taken. The first emitting gun includes a light source defining a main optical axis perpendicular to the fluid flow, and the second emitting gun includes a second light source defining a secondary optical axis substantially orthogonal to the main optical axis and fluid flow. The first and second emitting guns are placed on one side of the measurement tank, the receiving gun is placed on the other side of the measurement tank along the main optical axis and the triggering gun is placed on the other side of the tank.

The invention relates to methods for making injectable pharmaceutical compositions wherein particles present in the compositions are detected and analyzed, and the acceptance of the compositions is determined based on chemical and physical properties as well as toxicology and patient risks associated of the particles.

An emissions measurement system capable of providing an accurate, real-time measurement of an emissions sample is disclosed. The exhaust may be generated by an internal combustion engine, in which case the system may be sequentially connected to the exhaust from the internal combustion engine. The emissions measurement system can include a laser light opacity sensor, a light scattering sensor, and a particle ionization sensor.

An emissions measurement system capable of providing an accurate, real-time measurement of an emissions sample is disclosed. The exhaust may be generated by an internal combustion engine, in which case the system may be sequentially connected to the exhaust from the internal combustion engine. The emissions measurement system can include a laser light opacity sensor, a light scattering sensor, and a particle ionization sensor.

The system, configured for being on board an aircraft, includes a probe for collecting samples of contrail, a chamber for collecting the samples, a collecting conduit for conducting the samples from the collecting probe the collecting chamber and at least one device for measuring at least one parameter characterizing the samples in the collecting conduit while they are conducted from the collecting probe to the collecting chamber. By virtue of the system, it is not necessary to use a second aircraft that follows the aircraft for collecting samples of contrail.

The system, configured for being on board an aircraft, includes a probe for collecting samples of contrail, a chamber for collecting the samples, a collecting conduit for conducting the samples from the collecting probe the collecting chamber and at least one device for measuring at least one parameter characterizing the samples in the collecting conduit while they are conducted from the collecting probe to the collecting chamber. By virtue of the system, it is not necessary to use a second aircraft that follows the aircraft for collecting samples of contrail.

The invention provides an optical particle sensor (1) comprising: at least one light source (2, 2r, 2g, 2b) configured to emit light rays (20), at least one channel (3) intended to receive a fluid transporting at least one particle (30), and to at least partially receive the light rays (20) emitted by the at least one source (2, 2r, 2g, 2b), such that said light rays (20) are partially scattered by the at least one particle (30), at least one photodetector (4) capable of receiving said scattered light rays (20),
said sensor (1) being characterised in that the at least one source (2, 2r, 2g, 2b) has an emission face (21) facing one side (D) of the sensor and in that the at least one photodetector (4) has a receiving face (41) facing the same side (D) of the sensor (1), such that the light rays received by the at least one photodetector are light rays (20b) backscattered by the at least one particle (30), for at least 90% of them.

A particle size tracking system for providing predictive maintenance and battery tuning of hydrocyclones arranged in a battery configuration, featuring a control having a signal processor configured to: receive signaling containing information about particle sizes of material flowing in pipes of hydrocyclones arranged in a battery configuration; and determine corresponding signaling containing information to control the operation of each hydrocyclone arranged in the battery configuration, based upon the signaling received. The signal processor may be configured to provide the corresponding signal as control signaling to control the operation of each hydrocyclone arranged in the battery configuration.