1259results about "Weighing apparatus for continuous material flow" patented technology

An apparatus for measuring the weight of items on a conveyor includes a scale that generates a first signal corresponding to the weight of the items. A movable platform transports the items to the scale and generates a second signal corresponding to position of the items in relation to the scale. A dimensioner examines the items and generates a third signal representative of whether the items are singulated or nonsingulated. A processor receives the second and third signals and determines whether to associate the first signal with information stored in memory about a particular item based upon whether the particular item is singulated or nonsingulated.

A force measurement system having inertial compensation includes a force measurement assembly with at least one accelerometer configured to measure the acceleration thereof. According to one aspect of the invention, the force measurement system additionally includes at least one angular velocity sensor configured to measure the angular velocity of the force measurement assembly. According to another aspect of the invention, the force measurement system additionally includes a data processing device with a computer-readable medium loaded thereon that is configured to execute a calibration procedure for determining the inertial parameters of the force measurement assembly by utilizing the measured acceleration of the force measurement assembly while the force measurement assembly is subjected to a plurality of applied linear and/or rotational motion profiles. According to still another aspect of the invention, the at least one accelerometer is disposed on the force transducer.

A dietetic scale and method for calculating and tracking nutritional content information. The scale includes a bar code reader for identifying a food product from its package, with food content data per unit weight of the product being retrieved from a database. The database is a compilation of standardized nutrition facts promulgated by the FDA or other authority for the food products, with the bar code being correlated with the food products by means of their individual UPC numbers. The scale cumulatively sends the nutritional content data for servings of food products consumed over a predetermined interval of time, and then compares the summed values with a predetermined goal that includes minimums and maximums for selected contents. The information may be outputted to a digital flashcard or other electronic storage media for subsequent retrieval and analysis.

Weight sensors coupled to the bed of a conventional haulage truck measure the weight applied to each tire strut as the truck is being loaded. Based on the weight applied to each strut, the exact position of the center of gravity of the load in the truck's bed is calculated and displayed on a monitor relative to a target position deemed optimal for uniform weight distribution. Based on this information, the operator of the loading machine can complete the loading operation in such a way as to shift the center of gravity toward the chosen target position. In another embodiment of the invention, an automated algorithm calculates and displays where the next bucket load should be dropped, based on its approximate weight, in order to shift the center of gravity toward the target location.

Method of controlling the amount of material delivered by conveyor belt includes measuring the speed of the conveyor belt or a drive pulley that drives the conveyor belt. A weighing device weighs material dispensed onto the conveyor belt from at least one material dispenser. Based at least in part upon such speed and weight measurements, an electronic controller maintains or changes the speed of the conveyor belt by dictating the output of at least one motor that drives the drive pulley.

Disclosed is a process and composition of matter to support safe, assisted, independent living. The process is to create ubiquitous monitoring of the invention user's activities, physiology, and environment; analyze information from monitoring and sensing devices; and act on the information in a prioritized manner to address emergent events, and potentially undesirable conditions. The invention uses a software architecture and schema called Adaptive Scalable Plug&play Infrastructure for Responsive Engineering (ASPIRE).

“Smartmat” (Smartmat Area Activity Monitor and Personnel Identification System) monitors and identifies people, animals and other objects that pass through a control volume. Among other attributes, the exemplary system implementation can count, classify and identify objects, such as pedestrians, animals, bicycles, wheelchairs, vehicles, rollerbladers and other objects, either singly or in groups. Exemplary Smartmat implementations differentiate objects based on weight, footprint and floor/wall pressure patterns such as footfall patterns of pedestrians and other patterns. The system may be applied to security monitoring, physical activity monitoring, market traffic surveys and other traffic surveys, security checkpoint/gate monitoring, traffic light activation and other device activation such as security cameras, and other monitoring applications. Smartmat may be portable or permanently installed.

A mass sensor including: a connecting plate having one or more slit(s) and/or opening portion(s) formed therein and/or having a thin-walled portion and a thick-walled portion formed therein; a diaphragm joined with the connecting plate at respective side surfaces; a piezoelectric element; a sensing plate with the piezoelectric element being provided at least at one part on at least one surface of the sensing plate, which has its side surface joined with a side surface of the connecting plate in the direction perpendicular to the joining direction of the diaphragm and the connecting plate; and a sensor substrate with which at least a part of side surfaces of the connecting plate as well as the sensing plate are joined, and the diaphragm, the connecting plate, the sensing plate, and the piezoelectric element form a resonating portion. The mass sensor can conveniently be used for determining the mass of a substance to be sensed by measuring changes in resonant frequencies caused by changes in the mass of the diaphragm on which a catching substance for catching a substance to be sensed by reacting only with the object of sensing is applied.

Imperfections in conveyor belting and its supporting elements can adversely affect weighing accuracy of belt scales, particularly when weighing and/or metering low density materials, such as those encountered in the snack food industry. A system and methods for a belt conveyor according to an embodiment of the present invention provide simultaneous benefits of both short and long weigh spans. According to an embodiment of the present invention, a virtual weigh span may be programmably set to adjust for variations in the belt conveyor weighing system. Advantages include, higher degrees of accuracy and calibration to account for changes in the belt or belting system over time using non-mechanical adjustments. In addition, weight measurement error producing effects, some that may not be particularly known, may be reduced.

A method for inferring possible or impending corrosion or fouling of process elements from fluid flowing in a pipe of an industrial process is described. A frequency response of a body is measured. The measured frequency response is compared against a stored value. Corrosion or fouling of the process elements is identified based upon the comparison between the measured frequency response and the stored value.

A piezoelectric cantilever with a non-piezoelectric, or piezoelectric tip useful as mass and viscosity sensors. The change in the cantilever mass can be accurately quantified by monitoring a resonance frequency shift of the cantilever. For bio-detection, antibodies or other specific receptors of target antigens may be immobilized on the cantilever surface, preferably on the non-piezoelectric tip. For chemical detection, high surface-area selective absorbent materials are coated on the cantilever tip. Binding of the target antigens or analytes to the cantilever surface increases the cantilever mass. Detection of target antigens or analytes is achieved by monitoring the cantilever's resonance frequency and determining the resonance frequency shift that is due to the mass of the adsorbed target antigens on the cantilever surface. The use of a piezoelectric unimorph cantilever allows both electrical actuation and electrical sensing. Incorporating a non-piezoelectric tip (14) enhances the sensitivity of the sensor. In addition, the piezoelectric cantilever can withstand damping in highly viscous liquids and can be used as a viscosity sensor in wide viscosity range.

A person shopping for a mattress is helped to select a physiologically suitable mattress by a system which uses a questionnaire to elicit important information from the person. The questionnaire is processed automatically to generate a recommendation of which available mattress system is most suitable for the person.

A method and system for relieving forging induced residual stresses in a rotor forging balances a pre-spin machine with the forging mounted thereon at a first rotational speed and then pre-spins the forging with it mounted on the machine at a substantially greater second rotational speed. A one per rev sensor is used for determining a weight placement angle and a vibration sensor is used for determining an amount of weight to add to a spinning assembly including the forging during the balancing. High-density non-metallic balance weights adhesively attached on an inside surface of the forging or spinning assembly may be used. The rotational inertia of the spinning assembly may be checked during a spin up period by determining a rate of rotational acceleration vs. torque applied to the spinning assembly and used to stop the pre-spinning if it is to great.

A portable analytical system for detecting organic chemicals in water comprising a miniature preconcentrator and a SAW detector, the latter being characterized by a nanoporous carbon coating that provides improved response compared to prior art polymer coatings, particularly when detecting low concentrations of trihalomethane chemicals, such as chloroform and bromoform.

A method for weighing vehicles moving on a bridge deck pavement is provided. At least one vibration sensor is mounted on a lower side of the pavement to sense low frequency pavement vibrations generated by moving vehicle wheels and propagated in waves in the pavement. Vibration sensor output signals are provided to a computing device. Sensed vibration energy rate is computed and, with signals from vibration sensors mounted at two locations separated by a known longitudinal distance, vehicle speed is also computed. The weight of the vehicle is determined as the product of a calibration coefficient and the ratio of sensed vibration energy rate to velocity. Using vibration sensor signals indicative of wheel generated vibrations in the very near field and summing vibration energy rates computed from these signals during vehicle passage over the vibration sensors the weight of individual vehicles is computed when other moving vehicles are present.

A vehicle information system has a first load sensor for generating a first load signal based on a first vehicle load. A first position sensor generates a first position signal based on a position of a vehicle axle. A second position sensor generates a second position signal based on a position of a vehicle kingpin. A memory unit stores vehicle optimization data. An evaluation unit is in communication with the first load sensor, the first position sensor, the second position sensor and the memory unit. A general user interface for receiving input is also in communication with the evaluation unit. The evaluation unit makes an evaluation of the first load signal, the first position sensor, the second position signal, and any input and generates a vehicle optimization instruction relating to a distance between the axle and the kingpin.

A change in mass of a microbridge in a mass sensor can be sensed by applying a time-varying amplitude modulated electrostatic force to excite the microbridge into resonance at the frequency of amplitude modulation. An optical energy is then transmitted at a wavelength close to a resonant wavelength of a Fabry-Perot microcavity, which is formed by etching a movable reflective mirror into a region of the microbridge and by etching a fixed reflective minor in a region spaced apart from the microbridge. The two mirrors are interconnected by an optical waveguide. The movable mirror and fixed mirror reflect the optical energy to a receiver, and a change in the Fabry-Perot microcavity's reflectivity is interferometrically determined. The change in reflectivity indicates a change in the microbridge's resonant frequency due to increased mass of the microbridge resulting from sorption of a target chemical by a layer of chemoselective material deposited on the microbridge.

An asset identification and information infrastructure management (AI3M) device having an automated identification technology system (AIT), a Transportation Coordinators' Automated Information for Movements System II (TC-AIMS II), a weigh-in-motion system (WIM-II), and an Automated Air Load Planning system (AALPS) all in electronic communication for measuring and calculating actual asset characteristics, either statically or in-motion, and further calculating an actual load plan.

An inventory monitoring system measures changes in weight of an inventory stored on one or more scales. The inventory items are divided into classes by weight, and the system determines the maximum number of items that can be in a combination while maintaining a distinct combined weight. Items are then removed or added, and the change in weight on the scales is correlated to a change in the number of inventory items to track the number of items removed or added over time. In a combined system, scanners are employed to track inventory received or sold, and data from the scanners relating to the items in the inventory is filtered out for comparison to the inventory changes indicated by changes in weight. The system has particular utility for monitoring inventories of cigarettes.