Abrégé

The invention generally comprises creating a signal conditioner that is capable of filtering, converting, segmenting and producing a periodic waveform from an electrical source, converting in into an electrical signal to drive an electrical device, such as a LED lamp, so that the behavior of the device driven by the electrical signal enables the device to perform a function that is practically free of the variations present in the main electrical source.

Classes IPC  ?

• H05B 45/59 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] sensibles à la vie des LED; Circuits de protection pour réduire ou supprimer les effets de scintillement ou de lueur

Abrégé

A method and apparatus are described for measuring the concentration of a gas with an absorption band in the ultraviolet range. The device includes an absorption chamber containing a gas, a light source, a selected optical bandpass filter, and ultraviolet photodetectors. The gas concentration is measured by the ratio of a transmitted intensity to an incident intensity with the Beer-Lambert Law relation. A second light source may be used for a compensation signal. A second method periodically changes the absorption coefficient by inserting a transparent material in the absorption path to measure the optical compensation signal. A third method periodically shortens the optical absorption path by moving the active detector closer to the light source to measure the optical compensation signal. The fourth method uses an optical element to deflect the optical beam to create a shorter absorption path as a reference for the incident signal using one detector.

Classes IPC  ?

• G01N 21/33 - Couleur; Propriétés spectrales, c. à d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p.ex. spectrométrie d'absorption atomique en utilisant la lumière ultraviolette
• G01N 21/61 - Analyseurs de gaz non dispersifs

Abrégé

A system to monitor weight of a reservoir or a structure comprises a load cell which comprises an electrical or optical transducer to provide a proportional signal of the deformation, a load cell base support for holding the load cell on the ground substantially about the axis of the support element of the reservoir, a load cell support adapter to attach the loadcell to the support member of the reservoir. The cell support adapter may comprise an opening or a shouldering anchor aiming at facilitating attachment to a temporary lifting device.

Classes IPC  ?

• G01G 3/12 - Appareils de pesée caractérisés par l'utilisation d'organes déformables par élasticité, p.ex. balances à ressort dans lesquels l'élément de pesée est constitué par un corps solide soumis à une pression ou une traction pendant la pesée
• G01G 17/04 - Appareils ou méthodes pour peser un produit ayant une forme ou des propriétés particulières pour peser des fluides, p.ex. des gaz, des produits pâteux

Abrégé

A method and apparatus to monitor the weight of a silo or tank is disclosed. The system is adapted to be attached to a leg of the silo and comprises a load cell, a support member anchored to the ground and a lifting device attached to the load cell and to the support member. The load cell comprises two extremities that are attached to the silo leg and comprises an aperture there between. The aperture is preferably threaded to receive the lifting device, such as a bolt. The bolt is rotated using a tool as to induce a movement of the load cell along the axis of the bolt thereby lifting the load cell and the attached silo leg. Strain gauges are attached to the load cell to measure the variation in an electric or optical signal that is translated in human readable data using a monitoring device.

Classes IPC  ?

• G01G 21/23 - Supports ou suspensions de plates-formes de pesée
• G01G 19/52 - Appareils de pesée combinés avec d'autres objets, p.ex. avec de l'ameublement
• G01G 13/02 - Moyens pour charger automatiquement des plateaux de pesée ou d'autres récipients, p.ex. récipients à jeter après usage, l'opération étant commandée par le mécanisme de pesée
• G01G 23/02 - Mécanismes de dégagement; Mécanismes de blocage
• E04H 7/22 - Réservoirs pour solides fluents, p.ex. silos ou trémies; Leurs supports

Abrégé

The invention generally comprises creating a signal conditioner that is capable of filtering, converting, segmenting and producing a periodic waveform from an electrical source, converting in into an electrical signal to drive an electrical device, such as a LED lamp, so that the behavior of the device driven by the electrical signal enables the device to perform a function that is practically free of the variations present in the main electrical source.

Classes IPC  ?

• H05B 45/30 - Circuits de commande
• H05B 45/12 - Commande de l'intensité de la lumière à l'aide d'un retour optique
• H05B 39/04 - Commande
• H05B 45/50 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] sensibles à la vie des LED; Circuits de protection
• H05B 45/59 - Circuits pour faire fonctionner des diodes électroluminescentes [LED] sensibles à la vie des LED; Circuits de protection pour réduire ou supprimer les effets de scintillement ou de lueur
• H05B 45/3575 - Circuits de commande spécialement adaptés aux sources lumineuses LED rétro-compatibles Émulation des caractéristiques électriques ou fonctionnelles des lampes incandescentes utilisant des charges factices ou des circuits de purge, p.ex. des variateurs de lumière

Abrégé

A method and apparatus to monitor the weight of a silo or tank is disclosed. The system is adapted to be attached to a leg of the silo and comprises a load cell, a support member anchored to the ground and a lifting device attached to the load cell and to the support member. The load cell comprises two extremities that are attached to the silo leg and comprises an aperture there between. The aperture is preferably threaded to receive the lifting device, such as a bolt. The bolt is rotated using a tool as to induce a movement of the load cell along the axis of the bolt thereby lifting the load cell and the attached silo leg. Strain gauges are attached to the load cell to measure the variation in an electric or optical signal that is translated in human readable data using a monitoring device.

Classes IPC  ?

• G01G 19/52 - Appareils de pesée combinés avec d'autres objets, p.ex. avec de l'ameublement
• G01G 13/02 - Moyens pour charger automatiquement des plateaux de pesée ou d'autres récipients, p.ex. récipients à jeter après usage, l'opération étant commandée par le mécanisme de pesée
• G01G 23/02 - Mécanismes de dégagement; Mécanismes de blocage
• G01G 21/23 - Supports ou suspensions de plates-formes de pesée
• E04H 7/22 - Réservoirs pour solides fluents, p.ex. silos ou trémies; Leurs supports