A safety device for a single-use mixing or storage system (10), especially for use in a biopharmaceutical process, includes a flexible bag (12) made from a film material and a support structure (14) receiving and supporting the bag (12) in several directions. The support structure (14) allows an expansion of the bag (12) in an expansion direction. The safety device further includes a detection unit (20) adapted to detect an expansion of the bag (12) in the expansion direction, and a control unit (28) connected to the detection unit (20) and adapted to initiate a safety measure in response to the expansion of the bag (12) in the expansion direction exceeds a given threshold.

An adapter for connection between a luminaire and a power input for powering the luminaire comprises circuitry for modulating light output of the luminaire to contain information, or circuitry for connection to a network so that signals associated with the luminaire are communicated on the network. The adapter is placed between the luminaire and a power input for the luminaire. Methods are provided for registering and establishing communication between a gateway device and a management platform, and for registering a luminaire device with the gateway so that it can be managed by the management platform. Portions of the larger system that constitutes the remote controlled lighting system are also described, including connected wall switches, sensors, and the gateways themselves.

A micro-machined optical pressure sensor, comprising: a diaphragm configured to deform when a force is applied thereto; and a sensing micro-ring spaced apart from the diaphragm by a gap, the gap being variable depending on the force applied on the diaphragm, wherein the sensing micro-ring is configured to produce a resonance wavelength shift when the gap is varied, the resonance wavelength shift indicative of the force applied to the diaphragm.

Disclosed is a sensor to measure a pressure in a fluid, of which a body 1 includes a membrane 2 and a wall 3 forming a peripheral support for and around the membrane. The membrane and the peripheral wall are formed from one single component, and the membrane and the peripheral wall together form a flat and smooth front surface 4 intended to be in contact with the fluid.

Disclosed is a sensor to measure a pressure in a fluid, of which a body 1 includes a membrane 2 and a wall 3 forming a peripheral support for and around the membrane. The membrane and the peripheral wall are formed from one single component, and the membrane and the peripheral wall together form a flat and smooth front surface 4 intended to be in contact with the fluid.

A load sensing system for sensing a load on a structure can include an optical load sensing element configured to change an optical state based on a force applied thereto, an optical source operatively connected to the optical load sensing element and configured to input an input optical signal to the optical load element, and an optical detector configured to receive a returned optical signal from the optical load sensing element. The optical detector can be configured to detect one or more frequency peaks of the returned optical signal and to use the one or more frequency peaks of the returned optical signal to correlate to a load value of the load and output the load value indicative of the load.

A load sensing system for sensing a load on a structure can include an optical load sensing element configured to change an optical state based on a force applied thereto, an optical source operatively connected to the optical load sensing element and configured to input an input optical signal to the optical load element, and an optical detector configured to receive a returned optical signal from the optical load sensing element. The optical detector can be configured to detect one or more frequency peaks of the returned optical signal and to use the one or more frequency peaks of the returned optical signal to correlate to a load value of the load and output the load value indicative of the load.

A pressure sensing pad includes a flexible planar layer having a two-dimensional sensing area, and an optical fiber embedded in the plane of the flexible planar layer traversing the two-dimensional sensing area in a particular configuration. At least one end of the fiber optic strain sensor has a connector that is connectable to an interferometric-based fiber optic interrogation and processing system. When the connector is connected to the an interferometric-based fiber optic interrogation and processing system and pressure is applied to the pressure sensing pad, a signal from the optical fiber is provided to and processed by the interferometric-based fiber optic interrogation and processing system to determine a two-dimensional pressure map for the two-dimensional sensing area.

The present invention concerns a group (10) and method for measuring the pressure in closed containers (30) made from optically transparent material at least at a portion of a top space (31) thereof, and a filling and/or packaging plant (100) using the measuring group. In particular the present invention concerns a group and a method for contactlessly measuring the pressure in closed containers, able to be used directly in automatic filling and/or packaging plants operating at high speed, without the need to stop or slow down such plants or in any case to pick up the containers from the same. The measuring group for measuring the pressure in closed containers (30) made from optically transparent material at least at a portion of a top space (31) thereof, comprises at least one inspection area (20) adapted for the passage of at least one portion of a top space (31) of a closed container (30) of said closed containers; at least one laser source (11) with optical axis (A) for the emission of a laser beam at a wavelength tunable with an absorption wavelength of a gas contained in the top space (31) of the closed container (30), the at least one laser source (11) being positioned so as to direct the laser beam towards the at least one inspection area (20); at least one detector (12) positioned so as to detect at least one portion of the laser beam emitted by the laser source (11) once it has travelled through the inspection area (20) and to provide in output data representative of an absorption spectrum of said gas as a consequence of the passage of the laser beam through the inspection area (20); at least one device (14,14′) for detecting the signal acquisition time period corresponding to the passage of said at least one portion of a top space (31) of a closed container (30) through the inspection area; and is characterised in that it comprises means (41) for identifying signal contributions useful for the pressure measurement amongst the data representative of an absorption spectrum acquired during the signal acquisition time period.

The present invention concerns a group (10) and method for measuring the pressure in closed containers (30) made from optically transparent material at least at a portion of a top space (31) thereof, and a filling and/or packaging plant (100) using the measuring group. In particular the present invention concerns a group and a method for contactlessly measuring the pressure in closed containers, able to be used directly in automatic filling and/or packaging plants operating at high speed, without the need to stop or slow down such plants or in any case to pick up the containers from the same. The measuring group for measuring the pressure in closed containers (30) made from optically transparent material at least at a portion of a top space (31) thereof, comprises at least one inspection area (20) adapted for the passage of at least one portion of a top space (31) of a closed container (30) of said closed containers; at least one laser source (11) with optical axis (A) for the emission of a laser beam at a wavelength tunable with an absorption wavelength of a gas contained in the top space (31) of the closed container (30), the at least one laser source (11) being positioned so as to direct the laser beam towards the at least one inspection area (20); at least one detector (12) positioned so as to detect at least one portion of the laser beam emitted by the laser source (11) once it has travelled through the inspection area (20) and to provide in output data representative of an absorption spectrum of said gas as a consequence of the passage of the laser beam through the inspection area (20); at least one device (14,14′) for detecting the signal acquisition time period corresponding to the passage of said at least one portion of a top space (31) of a closed container (30) through the inspection area; and is characterised in that it comprises means (41) for identifying signal contributions useful for the pressure measurement amongst the data representative of an absorption spectrum acquired during the signal acquisition time period.