57results about How to "Reliable indicator" patented technology

An electrode assembly adapted to be attached to the skin over selected facial muscle groups picks up signals to be analyzed by an anesthesia adequacy monitor that measures the level of awareness of a living animal, typically a human being. The electrode assembly also includes a stimulator that stimulates a facial nerve to determine the level of paralysis, or neuro muscular block, of the facial muscles. Also disclosed is a method of manufacturing the electrode assembly by printing a pattern of electrically conductive material through a silk-screen or an ink type process onto a flexible layer, and then coating the result with a non-conducting adhesive except at points corresponding to sensing points for the desired muscle groups. Finally, a method for using such sensing and stimulating devices is shown in determining and maintaining an appropriate level of patient awareness, muscle paralysis, and analgesia under anesthesia.

An electrode assembly adapted to be attached to the skin over selected facial muscle groups picks up signals to be analyzed by an anesthesia adequacy monitor that measures the level of awareness of a living animal, typically a human being. The electrode assembly also includes a stimulator that stimulates a facial nerve to determine the level of paralysis, or neuro muscular block, of the facial muscles. Also disclosed is a method of manufacturing the electrode assembly by printing a pattern of electrically conductive material through a silk-screen or an ink type process onto a flexible layer, and then coating the result with a non-conducting adhesive except at points corresponding to sensing points for the desired muscle groups. Finally, a method for using such sensing and stimulating devices is shown in determining and maintaining an appropriate level of patient awareness, muscle paralysis, and analgesia under anesthesia.

A system for metering a fluid, such as a catalyst in an industrial chemical process plant, includes a controller, a drive pump assembly and an injection pump assembly. The drive pump assembly forces reciprocation of the injection pump assembly via a controlled flow of hydraulic fluid. The injection pump assembly includes a drive cylinder and at least one injection section. The drive cylinder receives pressurized fluid from the drive pump assembly and causes metered fluid to be drawn into and expelled by the injection section. The position of reciprocating components of the injection pump assembly is detected between stroke limits and converted to a velocity signal. Closed-loop control of the flow from the injection pump assembly is implemented by the controller via the drive pump assembly based upon the actual velocity of the reciprocating components of the injection pump assembly and a commanded velocity. The closed-loop injection rate control may be incorporated in a nested fashion with a process parameter control loop to maintain a desired level of a process parameter, such as temperature in a reaction vessel.

Conditions of a mechanical system driven (12) by a motor (14) can be assessed by monitoring an admittance or impedance at an input to the motor (14) over a period of time. The admittance or impedance may be determined by measuring the input voltage (22) and current (20). Variations in admittance or impedance are associated with known conditions including faults. An analyser (24) processes the admittance or impedance and provides a warning signal if a known fault condition is determined. The processing may be done using a neural processor.

A communication system includes at least a sound re-production system (13-16,18-20) for audibly reproducing sound communicated by one user to another. A method of controlling communications between at least one first and at least one second user of the communication system includes adjusting the sound reproduction system (13-16,18-20) so as to cause an apparent distance between the other user and a location of an origin of the reproduced sound as perceived by the other user to be adjusted. Data (23,25) representative of at least one indicator of at least an interpersonal relation of the at least one first user and the at least one second user is obtained. The apparent distance is determined at least in part according to a pre-determined functional relationship between an indicator of at least an interpersonal relation and a desired interpersonal distance.

A system detects presence of particles in the air of guest rooms of facilities such as motels and hotels for example that indicate that guests are engaged in recreational smoking. The system provides an indication to the facility manager of such behavior.

Contaminants, in particular stains, of cleaned or washed items of laundry can be on both sides. Therefore, it is necessary to examine washed or cleaned items of laundry on each side in respect of contaminants. This is very complicated. The invention provides for illuminating or transilluminating the items of laundry from one side by a lighting apparatus, as a result of which contaminants on this illuminated or transilluminated side of the items of laundry shine through to the opposite side. As a result, contaminants on both sides of the items of laundry are establishable from one side, which is directed away from the lighting apparatus, by way of a camera or the like. Therefore, as a result of the invention, it is not necessary to examine both sides of the items of laundry, either simultaneously or in succession, in respect of the presence of contaminants.

An abrasion sensing type conveyor chain, in which a degree of abrasion in a roller rolling surface is easily judged by a visual or a tactile sensing during checking and maintaining of rollers of the conveyor chain so that a maintenance operation can be significantly reduced. An abrasion sensing type conveyor chain in which rollers which travel along a guide surface while rolling on a conveyor line, each comprise a roller rolling surface with a roller outer diameter of a required standard and an abrasion limiting surface with a smaller diameter than the roller outer diameter, the abrasion limiting surface being disposed adjacently and coaxially to the roller rolling surface.

In some embodiments, apparatus and systems, as well as methods, may operate to record a plurality of acoustic waveforms comprising cross-dipole waveforms and corresponding to acoustic waves received 5 at azimuthally orthogonal dipole receiver arrays surrounded by a geological formation, the waves being generated by azimuthally orthogonal dipole transmitter arrays. Further activity may include defining an objective function dependent on the cross-dipole waveforms, eigenvalues, an azimuth angle corresponding to an 10 orientation of the transmitter and receiver arrays; minimizing the objective function with respect to said angle and the set of auxiliary parameters; and determining at least one property of the geological formation based on the global minimum. Additional apparatus, systems, and methods are disclosed.

A method and apparatus for measuring battery cell DC impedance by controlling charging of the battery cell. The method includes real-time characterization of a battery, (a) measuring periodically a DC impedance of the battery to determine a measured DC impedance; (b) ratioing the measured DC impedance to a reference DC impedance for the battery to establish an impedance degradation factor; (c) obtaining, during use of the battery and responsive to a set of attributes of the battery, an operational reference impedance for the battery; and (d) applying the impedance degradation factor to the operational reference impedance to obtain a real-time effective impedance for the battery.

An abrasion sensing type conveyor chain, in which a degree of abrasion in a roller rolling surface is easily judged by a visual or a tactile sensing during checking and maintaining of rollers of the conveyor chain so that a maintenance operation can be significantly reduced. An abrasion sensing type conveyor chain in which rollers which travel along a guide surface while rolling on a conveyor line, each comprise a roller rolling surface with a roller outer diameter of a required standard and an abrasion limiting surface with a smaller diameter than the roller outer diameter, the abrasion limiting surface being disposed adjacently and coaxially to the roller rolling surface.