摘要:
A meter which measures fluid flow by passing the fluid through a receptacle and determining the mass of fluid in the receptacle. The shape of the receptacle, the fluid flow path within the receptacle and the receptacle outlet are chosen to ensure that for a selected fluid the mass of fluid in the receptacle is a linear function of fluid flow rate. The mass is determined by weighing the receptacle. Total mass flow is determined by integrating the mass measurement over time if particular application of the meter is as a milk meter.
摘要:
Apparatus for supplying a plurality of containers with liquid. The apparatus performs the steps of introducing into a first container a first percentage of a predetermined final amount and subsequently introducing in steps additional liquid until said predetermined amount is reached, introducing into a second container a percentage of said predetermined amount greater than the initial percentage introduced into said first container and then introducing additional liquid into said second container in steps until said predetermined amount is reached, and continously introducing into a third container an amount of liquid within a tolerance of said predetermined amount, and wherein the amounts of liquid introduced into the container are measured and determined by weight. A microprocessor connected in circuit with a scale is used to control a valve through which the liquid is introduced into the container.
摘要:
A small container is filled with a mixture of oxygen and nitrogen in a predetermined and precise concentration from a source of liquid oxygen and liquid nitrogen automatically, safely, and without the possibility of a human error. The empty weight is verified. Liquid oxygen is directed to vessel. When the mass of liquid oxygen is stabilized at a preset value, liquid flow is stopped. A second pipe is cooled using liquid nitrogen, by emptying through this pipe to the atmosphere liquid nitrogen. The vessel is filled with liquid nitrogen, until the vessel is full. The correct proportion of oxygen/nitrogen is controlled.
摘要:
A system for automatically measuring a quantity of urine from a plurality of individuals is provided wherein a common urinal can act as both a receptacle for measuring urine from a designated patient and for exhausting the urine in the normal disposal system. A weight scale can measure the amount of urine when appropriate valves are activated as a result of the identification system that can recognize a badge on the individual. A computer system can store data on the quantity of urine measured and can activate valves to dispose of the measured urine.
摘要:
A method and an apparatus for accurately weighing by a ladle weighing unit (2) of a metal melt in a ladle (3), in which the melt can be heated and stirred by power supplied by an induction coil (4). The induction field of the coil (4) is also applied to a coil weighing unit (1) so that the reaction force of the magnetic field influencing the melt is measured. In a weighing system (5), the net weight of melt is calculated by subtracting the signal of the coil weighing unit (1) from that of the ladle weighing unit (2). The weight change per time unit, which represents the mass flow rate of melt from the ladle, is calculated in the control system (6) and is used to control the pressure in the ladle in such a way the metal flow is kept constant.
摘要:
This invention relates to a device for determining the liquid content of small propane containers of the type used for torches, camp stoves, lanterns, heaters and the like, comprising an elongated support beam, one end of the support beam being a cradle for a propane container, a fulcrum underling the cradle, the other end of the support beam being a counterweight arm which has weight carried by the dowel and as the weight opposite the propane container is extended, the platform tilts, and the weight of the container is read on the indicator on the calibrated scale.
摘要:
A weigh system having a plurality of weigh hoppers in a housing, the hoppers being removably mounted on a suspension support or platen held on load cells outside of the housing. Each hopper has a ball valve at the outlet spout, seated on an O-ring seat and retained with vertical guide rods. A vertical rod extends up from each ball valve to a rotary lift to be actuated when the load cell detects a predetermined load. Beneath these hoppers are surge hoppers to receive the weighed materials. Float ball valves in the surge hoppers actuate a switch to activate a motor to discharge pumps.
摘要:
This specific density of the liquid/air mixture is measured at successive levels within the reception vessel for the liquid using a reference measurement (Io) representing the specific density of the degasified liquid within a reference measuring path. The ratio of each obtained density value measurement and the reference value is calculated for each measuring level and multiplied with the specific density of the liquid to allow an accurate measurement of the overall liquid volume or flow-rate. Preferably the reception vessel (1) has a respective measuring electrode (El..En) at each measuring level with a common counter electrode (Eo) coupled to an oscillator (4) via a constant voltage circuit (5) and a coupling capacitor (6). Each measuring electrode (El-En) is coupled via a multiplexer (7) and an active rectifier (9) to an A/D converter (10) coupled to a microprocessor (11) controlling a read-out display (12).
摘要:
A thermoplastic melting apparatus comprises a tank pivotally mounted upon bearings within the interior of a housing having a top cover. An electrical or mechanical level indicator device is mounted exteriorly of the tank which is effective to sense pivotal movement of the tank as it is loaded with and/or emptied of thermoplastic material, and to produce a signal which indicates the quantity of thermoplastic material within the tank. The level indicator device is isolated from dynamic forces produced by drive linkages which operate pumps associated with the tank, by positioning the pivot axis of the bearings in the same plane as the force produced by the drive linkage. The lid of the tank is isolated from downward forces applied to the top cover of the housing to prevent the transmittal of forces to the level indicator devices from objects placed on the top cover of the housing or the like.
摘要:
On-line density/weight measurements are made in liquid handling plant by isolating part of the plant, e.g. a tank such as an accountancy tank in nuclear fuel reprocessing plant, from the remainder of the plant in terms of force transmission and supporting the isolated part through the agency of a null-deflection weighing mechanism which cna be tared off to indicate the weight of liquid (and any solids content) occupying the isolated part of the plant.