Abstract:
본 발명 지하를 운행하는 운송수단을 위한 구조물이나 터널을 구축하기 위해 지면에서 지하로 수직경로를 굴착하고, 상기 수직경로의 끝단부에는 수평방향으로 터널을 형성하기 위해 수평경로를 굴착하여 발생된 토사를 운송수단을 통해 외부로 배출함으로써 발생하는 토공량을 관리하기 위한 굴착 토공량 관리방법에 관한 것으로서, 더욱 상세하게는 상기 운송수단을 통해 외부로 토사가 배출될 때, 토사가 만차된 운송수단의 하중과 지면의 토사 핏(Pit)에서 배출 후 공차된 운송수단의 하중차이를 측정하여 데이터로 정리하는 것이 특징인 굴착 토공량 관리방법에 관한 것이다. 상술한 바와 같이 본 발명 굴착 토공량 관리방법은 광차의 하중을 로드셀에 의해 측정하므로 설치와 측정이 매우 간단하며, 또한 굴착된 토사를 최종 배출하는 단계에서의 만차된 광차의 하중과 최초 공차된 하중을 측정하기 때문에 매우 정확한 값을 산출할 수 있다는 등의 현저한 효과가 있다.
Abstract:
A semiconductor wafer metrology technique which corrects for the effect of electrostatic forces on an atmospheric buoyancy compensated weight force measurement of a semiconductor wafer. In one aspect a wafer is weighed in a faraday cage whose is measured independently. A change in the measured weight of the faraday cage can be used to correct the measure weight of the wafer. In another aspect a direct electrostatic measurement can be converted into a weight correction using a predetermined correlation between an electrostatic charge measured by the charge meter and a weight error force. In another aspect the electrostatic measurement may be indirect, e.g. derived from varying the distance between the wafer and a grounded plate parallel to the wafer to effect a change in an electrostatic force between the grounded plate and the wafer.
Abstract:
One aspect described herein includes a capacitive screen smart scale system to determine a weight of an object. The system includes a non-transitory memory storing computer-executable instructions and a processor configured to facilitate execution of said instructions. The system determines a pattern of at least two touch points that indicates that a weight table is on a capacitive touch screen, calibrates the weight table with no object present, and determines a weight of an object on the weight table by determining a difference between calibrated values of the at least two touch points and weighted values of the at least two touch points with the object present on the weight table. Capacitive screen smart scale methods and weight tables for use in determining a weight of an object are also described herein.
Abstract:
Various methods and systems are provided for a drift-compensated force measurement. In one example, a method includes obtaining a single output voltage measurement from a strain gauge of an infant scale, the single output voltage reflective of a weight applied to the scale; obtaining a voltage measurement across each of four resistors of the strain gauge to determine four separate voltage measurements and determining a drift voltage based on the four separate voltage measurements; and outputting a corrected weight value determined based on a difference between the single output voltage and the drift voltage.
Abstract:
A weight scale (10) is described that provides the weight of an alcoholic beverage poured into a glass W, via an automatic tare switch (15), to allow subsequent derivation of a number of alcohol units. The weight scale provides a means of sending the weight readings to a computer or smart phone at a later time and/or real- time Bluetooth (or similar) transmission.
Abstract:
The invention relates to a conveyor scale comprising a conveyor belt (1) driven by a motor (3) and running via a deflection roller (4), which is loaded with bulk goods (7) from a dosing device (9) through a feeding hopper (6). In addition to a first weighing device (11), which determines the gross load on the loaded conveyor belt (1), the conveyor scale has a second weighing device (15), which determines the tare load on the empty, but possibly dirtied and inhomogeneous, conveyor belt (1). The weighing sections have the lengths SB (11) and ST (15) and are separated by a distance L between homologous points. The weighing results are converted into digital form in evaluation units (22, 21) and transmitted to a computer (25), which calculates the net load on the conveyor belt (1). Said computer (25), by means of incremental sensors (17, 23) and corresponding meters (18, 24), also monitors the belt for slippage and, if necessary, controls the dosing device (9).
Abstract:
A container lifting and weighing assembly for determining a weight of a container, the assembly having: a frame for supporting a container, the frame being connectable to a support surface to transfer a weight of the container from the container to the support surface; a lifting structure locatable between the container and the support surface, the lifting structure having one or more movable actuators and a load sensor, the lifting structure being movable between: a rest position, wherein the load path from the container to the support surface does not traverse the lifting structure; and a weighing position, wherein the lifting structure lifts the container such that the load path from the container to the support surface traverses the lifting structure,wherein, in the weighing position, the load sensor is adapted to provide a load sensor signal indicative of the weight of the container.
Abstract:
A system for splitting a fluid includes a source support configured to support a source container of a fluid flow circuit and at least one satellite support, with each satellite support configured to support a different satellite container fluidly connected to the source container. A weight scale is associated with each of the supports. The system also includes a clamp system and a controller. The controller is configured to control each weight scale to measure a combined weight of the container and the contents of the container supported by the support associated with the weight scale. The controller is configured to control the clamp system to selectively allow and prevent fluid flow from the source container to each satellite container based at least in part upon the weights measured by each weight scale. Fluid flow continues until the contents of each container have reached a target volume.