Abstract:
Procede et appareil de controle du diametre moyen d'une pluralite de fibres de verre (22), consistant a illuminer les fibres avec une radiation electro-magnetique (40), detecter (38) la radiation diffusee par les fibres (41) et generer un signal en reponse a l'intensite de la radiation detectee sous forme d'indication du diametre moyen des fibres; un tel signal peut etre utilise pour la mesure (42) et/ou la commande (39) du procede de production des fibres.
Abstract:
Fiberizing apparatus and method solve above referenced technical problem of responding to change in characteristics of a melt cascade (for purposes of this invention this term describing melt in either droplets, or streams, or rivulets, or other type of flow cascading from furnace or like through melt vessel, and onto rotating wheel or plurality thereof, and between said rotating wheels) by responding to changes in product output, or, analysis of (a) trajectory of movement of melt stream, (b) melt concentration relative to surrounding air between the first and the second rotating wheels, and (c) movement vector by changing geometrical setup of the rotating wheels in rotating wheel setup according to this invention, or some other indication of effectiveness of fiberizing process.
Abstract:
This invention addresses technical problem of optimizing output of a melt cascade which is used in production of mineral fiber (so called mineral wool as known in state of the art being stone wool, slag wool or other type of mineral wool). These technical problems are solved by steps of determining (a) trajectory of movement of melt stream, (b) melt concentration relative to surrounding air between the first and the second rotating wheels, and (c) movement vector, and further by regulating of movement of melt stream (i.e. drop mass), said regulation mostly achieved through variation in point of contact of melt and rotating wheel or plurality thereof. This is achieved by determining three key parameters: (a) trajectory of movement of melt stream, (b) melt concentration relative to surrounding air between the first and the second rotating wheels, and (c) movement vector, and further by analyzing these three key.
Abstract:
An electrical discharge, suitable for heating optical fibers for processing, is made in a controlled partial vacuum, such that saturation of available ionizable gas molecules is reached. The workpiece temperature is thereby made to be a stably controlled function of the absolute air pressure and is insensitive to other conditions. A system and method accomplishing the foregoing are provided.
Abstract:
The present invention concerns a method and an apparatus (12) for measuring the temperature of a fluid stream (11), said apparatus comprising a movable frame (13, 14) having first end facing towards the fluid stream to be measured and an oppositely directed second end; a beam splitter (9) which is movably arranged in the frame for advancement into said fluid stream to open the fluid stream; an optical temperature measurement device (8) for determining the temperature of the fluid stream by measuring the thermal radiation from the fluid stream; and control means for controlling the movement of the frame and the beam splitter and controlling the performance of the optical temperature measurement device.
Abstract:
Optical fibers are drawn in various draw toners (9). The spools of fibers are transfered onto pallets (32) at a first track (36a). The spools are then transfered to a separate testing track (36b) where various tests (61) are made on the spooled fibers. The tesed spooled fibers are then transfered to a third track (36c) where it is decided whether the spools are to be shiped, scrapped or salvaged.
Abstract:
The core of a fiber (115) is controlled during production. A rod (116) presses on the molten core glass (110). A sensor (126) senses the diameter of the fiber (115). A controller (120) controls the draw speed and a rod control device (122).
Abstract:
A bushing balance controller senses the temperature of each section (14, 16, 18) of a multiple section glass fiber forming bushing (12) by resistance (voltage drop) measuring techniques and injects electrical energy to all but one of the individual bushing sections and adjusts the supply of electrical energy to the entire bushing assembly thereby controlling the temperature of each individual section of the bushing. A controller (102) uses wires (104, 106, 108, 110) connected to the bushing (12) to sense the voltage drop across each bushing segment (14, 16, 18). The controller applies power to the entire bushing through power pack (26) or only to individual segments through separate power packs (50, 70).
Abstract:
An electrical discharge, suitable for heating optical fibers for processing, is made in a controlled partial vacuum, such that saturation of available ionizable gas molecules is reached. The workpiece temperature is thereby made to be a stably controlled function of the absolute air pressure and is insensitive to other conditions. A system and method accomplishing the foregoing are provided.
Abstract:
Various embodiments of the present invention relate to glass fiber forming bushings, to methods of controlling the temperature of bushings having multiple segments, to systems of controlling the temperature of bushings having multiple segments, and to other systems and methods. In one embodiment, a method of controlling the temperature of a bushing (18) having multiple segments comprises forming a plurality of filaments (12) from a bushing comprising at least two segments, gathering the filaments into at least two ends, measuring the size of each of the at least two ends, comparing the measured size of the at least two ends to a desired end size, adjusting the amount of current passing through the at least two bushing segments in response to the end size comparisons.