An electric field sensor includes an insulating substrate, a plurality of electrodes, an insulator, a plurality vias, and a ground ring. The electrodes are disposed on the substrate. The insulator is disposed over the electrodes. The vias are coupled to the electrodes and extend through the substrate at a right angle to the electrodes. The ground ring is disposed around the electrodes and the vias and is configured to attenuate a sensitivity of the sensor to electric fields outwards of the ground ring.
A pipeline breach monitor includes an electric field sensor and a signal processing unit in communication with the electric field sensor. The electric field sensor includes an upper substrate, and a plurality of electrodes embedded in the upper substrate. The electrodes are substantially parallel to each other in the upper substrate and comprise at least one sense electrode and a plurality of elongate sensor electrodes disposed around the at least one sense electrode. The signal processing unit is configured to (i) apply a voltage signal to the sensor electrodes, (ii) receive at least one measurement set comprising a measurement of a phase and a magnitude of a current generated in the at least one sense electrode and the sensor electrodes, and (iii) generate an assessment of accumulation of a substance proximate the electric field sensor from the at least one measurement set and at least one predetermined substance accumulation profile.
G01M 3/18 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique pour tuyaux, câbles ou tubesExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique pour raccords ou étanchéité de tuyauxExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique pour soupapes
F17D 5/06 - Prévention, interception ou localisation des pertes utilisant des moyens électriques ou acoustiques
G01M 3/04 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite
F17D 5/02 - Prévention, interception ou localisation des pertes
G01M 3/16 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique
3.
Apparatus and method of monitoring for in-flight aircraft engine ice crystal accretion
A method of monitoring for the in-flight accretion of matter involves an electric field sensor applying a time-varying electric field to an engine surface of an aircraft while the aircraft is in flight. The electric field sensor is thermally-coupled and thermally-matched to the engine surface. A sensor monitor receives, in substantially real-time from the electric field sensor, at least one measurement set that includes a measurement of a phase and a magnitude of a current detected by the electric field sensor and resulting from the time-varying electric field. The sensor monitor generates an assessment, in substantially real-time, of an instantaneous accumulation of matter on the engine surface from the at least one measurement set. The sensor monitor activates an alarm upon the assessment indicating an accumulation of matter on the engine surface.
A pipeline breach monitor includes an electric field sensor and a signal processing unit in communication with the electric field sensor. The electric field sensor includes an upper substrate, and a plurality of electrodes embedded in the upper substrate. The electrodes are substantially parallel to each other in the upper substrate and comprise at least one sense electrode and a plurality of elongate sensor electrodes disposed around the at least one sense electrode. The signal processing unit is configured to (i) apply a voltage signal to the sensor electrodes, (ii) receive at least one measurement set comprising a measurement of a phase and a magnitude of a current generated in the at least one sense electrode and the sensor electrodes, and (iii) generate an assessment of accumulation of a substance proximate the electric field sensor from the at least one measurement set and at least one predetermined substance accumulation profile.
G01M 3/18 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique pour tuyaux, câbles ou tubesExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique pour raccords ou étanchéité de tuyauxExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique pour soupapes
5.
APPARATUS AND METHOD OF MONITORING FOR IN-FLIGHT AIRCRAFT ENGINE ICE CRYSTAL ACCRETION
A method of monitoring for the in-flight accretion of matter involves an electric field sensor applying a time-varying electric field to an engine surface of an aircraft while the aircraft is in flight. The electric field sensor is thermally-coupled and thermally-matched to the engine surface. A sensor monitor receives, in substantially real-time from the electric field sensor, at least one measurement set that includes a measurement of a phase and a magnitude of a current detected by the electric field sensor and resulting from the time-varying electric field. The sensor monitor generates an assessment, in substantially real-time, of an instantaneous accumulation of matter on the engine surface from the at least one measurement set. The sensor monitor activates an alarm upon the assessment indicating an accumulation of matter on the engine surface.
A method of monitoring for the in-flight accretion of matter involves an electric field sensor applying a time-varying electric field to an engine surface of an aircraft while the aircraft is in flight. The electric field sensor is thermally-coupled and thermally-matched to the engine surface. A sensor monitor receives, in substantially real-time from the electric field sensor, at least one measurement set that includes a measurement of a phase and a magnitude of a current detected by the electric field sensor and resulting from the time-varying electric field. The sensor monitor generates an assessment, in substantially real-time, of an instantaneous accumulation of matter on the engine surface from the at least one measurement set. The sensor monitor activates an alarm upon the assessment indicating an accumulation of matter on the engine surface.
An electric field sensor includes an insulating substrate, a plurality of electrodes, an insulator, a plurality vias, and a ground ring. The electrodes are disposed parallel to one another on the substrate. The insulator is disposed over the electrodes. The vias are coupled to the electrodes and extend through the substrate at a right angle to the electrodes. The ground ring is disposed around the electrodes and the vias and is configured to attenuate a sensitivity of the sensor to electric fields outwards of the ground ring.
B64D 15/20 - Dispositifs pour détecter le givrage ou amorcer la mise en action du dégivrage
G01B 7/06 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G01R 29/08 - Mesure des caractéristiques du champ électromagnétique
8.
Apparatus and method of monitoring for matter accumulation on an aircraft surface
A method of monitoring the accumulation of matter on an external surface of an aircraft involves applying varying electric fields to the aircraft surface, and a sensor monitor receiving a time-series of measurements of a temperature of the aircraft surface and a phase and a magnitude of a current induced in an electric field sensor unit from the varying electric fields. The electric field sensor unit is mounted proximate the aircraft surface. The time-series of the measurements varies in accordance with the instantaneous accumulation of matter on the aircraft surface. The sensor monitor generates an assessment of the accumulation of matter on the aircraft surface from a correlation of the time-series of the measurements with at least one predetermined matter accumulation profile. Each predetermined matter accumulation profile comprises a corresponding time-series of current phase, current magnitude and temperature measurements.
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
B64D 15/20 - Dispositifs pour détecter le givrage ou amorcer la mise en action du dégivrage
B64D 15/22 - Mise en action automatique par détecteur de givrage
G01B 7/06 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G08B 19/02 - Alarmes réagissant à la formation ou à la formation escomptée de la glace
G01B 21/08 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G01K 13/00 - Thermomètres spécialement adaptés à des fins spécifiques
9.
APPARATUS AND METHOD OF MONITORING FOR MATTER ACCUMULATION ON AN AIRCRAFT SURFACE
A method of monitoring the accumulation of matter on an external surface of an aircraft involves applying varying electric fields to the aircraft surface, and a sensor monitor receiving a time-series of measurements of a temperature of the aircraft surface and a phase and a magnitude of a current induced in an electric field sensor unit from the varying electric fields. The electric field sensor unit is mounted proximate the aircraft surface. The time-series of the measurements varies in accordance with the instantaneous accumulation of matter on the aircraft surface. The sensor monitor generates an assessment of the accumulation of matter on the aircraft surface from a correlation of the time-series of the measurements with at least one predetermined matter accumulation profile. Each predetermined matter accumulation profile comprises a corresponding time-series of current phase, current magnitude and temperature measurements.
B64D 15/20 - Dispositifs pour détecter le givrage ou amorcer la mise en action du dégivrage
G01B 7/06 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G08B 19/02 - Alarmes réagissant à la formation ou à la formation escomptée de la glace
10.
APPARATUS AND METHOD OF MONITORING FOR MATTER ACCUMULATION ON AN AIRCRAFT SURFACE
A method of monitoring the accumulation of matter on an external surface of an aircraft involves applying varying electric fields to the aircraft surface, and a sensor monitor receiving a time-series of measurements of a temperature of the aircraft surface and a phase and a magnitude of a current induced in an electric field sensor unit from the varying electric fields. The electric field sensor unit is mounted proximate the aircraft surface. The time-series of the measurements varies in accordance with the instantaneous accumulation of matter on the aircraft surface. The sensor monitor generates an assessment of the accumulation of matter on the aircraft surface from a correlation of the time-series of the measurements with at least one predetermined matter accumulation profile. Each predetermined matter accumulation profile comprises a corresponding time-series of current phase, current magnitude and temperature measurements.
B64D 15/20 - Dispositifs pour détecter le givrage ou amorcer la mise en action du dégivrage
G01B 7/06 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G08B 19/02 - Alarmes réagissant à la formation ou à la formation escomptée de la glace
A computer-based fibre production monitoring system includes at least one sensor, and a computer server in communication with the sensors. Each sensor is configured to provide data packets each being associated with a respective threadline and providing a measurement of at least one physical characteristic of a fibre as it is drawn past the sensor on the threadline and wound onto a bobbin. The computer server is configured to provide an analysis of the physical characteristics on a per-threadline basis and/or per-bobbin basis from the measurements. The sensor is configured as an electric field sensor, and includes an insulating substrate, non-contacting electrodes disposed on the substrate, and vias extending transversely through the substrate. The electrodes are interlaced with one another. One portion of the vias is coupled to one portion of the electrodes, and another portion of the vias is coupled to another portion of the electrodes.
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
An electric field sensor includes an insulating substrate, a plurality of non- contacting electrodes disposed on the substrate, and a plurality of conductors coupled to the electrodes and extending transversely through the substrate. The electrodes includes a plurality of first non-contacting electrodes, and a plurality of second non- contacting electrodes that are interlaced and non-contacting with the plurality of first electrodes. The conductors include a first conductor portion and a second conductor portion. The first portion of the conductors are coupled to the plurality of first electrodes, and the second portion of the conductors are coupled to the plurality of second electrodes.
