62results about "Weighing apparatus using electrostatic balancing" patented technology

A system for use in classifying a vehicle includes a capacitive sensor for operatively receiving a weight of a vehicle and a capacitance detector coupled to said capacitive sensor. The capacitance detector is adapted to determine a capacitance signal of the capacitive sensor in response to the capacitive sensor operatively receiving the weight of the vehicle.

A capacitive sensing apparatus for a vehicle seat includes a deflectable dielectric mat and a flexible printed circuit that wraps around the major surfaces of the dielectric mat to define upper and lower conductor strips that overlap in a direction perpendicular to the dielectric mat. Overlapping regions of the conductor strips define an array of capacitive load cells distributed over the seating surface. A connector stub depending from the flexible printed circuit couples the conductor strips to an external circuit that measures the capacitance of the various load cells to determine occupant weight and weight distribution.

The present invention relates to a capsule-weighing device (1) comprising a capsule holder (2) for receiving at least one capsule lower part (4), preferably for medical preparations, a weighing unit (5) that can be positioned independently of the capsule holder (2) and that has at least one first electrode (8) for weighing the capsule lower part (4) in the capsule holder (2), a transport device (3) for moving the capsule holder (2), independently of the weighing unit (5), to different stations (S1-S12), and at least one second electrode (9), wherein an outer wall (7) of the at least one capsule lower part (4) is exposed in the capsule holder (2), or is only thinly enclosed by the capsule holder (2), such that, by means of an electric field between the first and second electrodes (8, 9), the capsule lower part (4) can be weighed without moving the capsule lower part (4) in the capsule holder (2).

The invention relates to a capacitive microsystem, which can be used to replace conventional strain gauges used currently. The microsystem has substantial advantages with regard to handling, overload stability and endurance. Capacitive microsystems of this type can be used to record deformations and to calculate forces, torque etc. They can be used in particular to determine the weight of vehicle seats, to provide for example deployment data for an airbag.

A method and machine for filling capsules with at least one product, whereby the bottom shell of each capsule is fed along a given path in time with a relative metering device having a metering chamber for transferring a given quantity of product from a tank into the bottom shell; the metering chamber having a weighing device for weighing the product contained in the metering chamber.

The invention discloses a machine and a machine for filling capsules or similar with at least two products, in particular pharmaceutical products in granules. Each capsule includes a bottom case and a top case for closing the bottom case. The machine includes a forwarder, at least two of reservoir, at least one of dosing wheel, and a plurality of metering devices. Each of the metering devices is supplied by the dosing wheel along a part of a path (P) to the corresponded bottom case, so as to provide products to the bottom case. The metering devices include a measuring cavity. The characteristics of the machine are described as that: each metering device also includes a conveying cavity used for receiving and transforming products came from the corresponding measuring cavity, and includes a weighing device used for weighing the products came from the conveying cavity. The invention also discloses a method for filling capsules or similar with at least two products, in particular pharmaceutical products in granules.

A capacitive load cell includes upper and lower capacitor plates and an intermediate array of dielectric pads formed of silicone-impregnated open-cell urethane foam (i.e., gel pads). The silicone essentially displaces air that would otherwise be trapped in the foam, contributing to a dielectric having minimal humidity-related variability. The upper capacitor plate is defined by an array of individual charge plates, the lower capacitor plate defines a ground plane conductor common to each of the charge plates, and the dielectric pads are disposed between the ground plane conductor and each of the charge plates, leaving channels between adjacent dielectric pads. When occupant weight is applied to the seat, the dielectric pads transmitting the weight distend laterally into the channels to reduce the separation between the respective upper and lower capacitor plates, and the consequent change in capacitance is detected as a measure of the applied force and the force distribution.

In a balance (10) for weighing blister packs (50) in the microgram weight range, its balance pan (12, 14) is designed in such a way that field forces (70) caused by an electric field act practically exclusively on the balance pan (12, 14), said field being generated by an electrically charged blister pack (50) lying on the balance pan.

A gap-change sensing through capacitive techniques is disclosed. In one embodiment, an apparatus includes a first conductive surface and a second conductive surface substantially parallel to the first conductive surface, and a sensor to generate a measurement based on a change in a distance between the first conductive surface and the second conductive surface. The change in the distance may be caused by a deflection of the first conductive surface with respect to the second conductive surface, and the deflection may be a compressive force and / or an expansive force. The sensor may apply an algorithm that converts a change in capacitance to at least one of a change in voltage and / or a change in frequency to generate the measurement. The change in the distance may be caused by a load applied to the surface above the first conductive surface with respect to the second conductive surface.

An apparatus for weighing liquid in a bottle (FL1, FL2, FL3), in particular a pharmaceutical bottle (FL1, FL2, FL3). The apparatus has at least one measuring cell (10), and a conveying device for feeding a number of bottles (FL1, FL2, FL3) through the measuring cell (10) along a path (P). The apparatus is characterized in that the measuring cell (10) has an actual measuring section (11) preceded and followed, respectively, by a first guard section (12) and a second guard section (13), which reduce the effect of adjacent bottles on the measurement.

The invention relates to a capacitive sensing isolation using reversed biased diodes. A capacitive sensor is provided. The capacitive sensor includes a sensor / heat pad for outputting a sensing signal, a first diode coupled to a first node of the sensor / heat pad, a second diode coupled to a second node of the sensor / heat pad, a first transistor coupled to the first diode and a second transistor coupled to the second diode. During a sensing mode, the first and second transistors are opened and a reverse-biased signal is applied to the first diode and the second diode so that the sensor / heat pad is isolated from the first and second transistors.

A pressure detecting sensor according to an embodiment of the present invention comprises: a first electrode layer including a plurality of signal electrodes arranged in a first region and a plurality of wiring electrodes arranged in a second region and connected to the plurality of signal electrodes, the first electrode layer being made of a conductive fiber; an elastic dielectric layer arranged in the first region; and a second electrode layer arranged in the elastic dielectric layer, the second electrode layer being made of a conductive fiber.

A load cell comprising an elastic body having a base, a flexible membrane that is adapted to yield upon application of a load to the membrane, a sensor for measuring the load applied to the membrane, at least one connector having a first end that is connected to the membrane and a second end that is connected to the sensor. The connector is configured to transmit a mechanical force that is applied to the membrane to the sensor. The connector can be attached to the membrane and / or the sensor by way of at least one pivotal connection.

This disclosure provides systems, methods and apparatus for electromechanical systems (EMS) device packages having integrated sensors. In one aspect, electrodes within a packaged EMS device can be used in conjunction with an electrode disposed on another substrate within the EMS device package to form one or more capacitive sensors. The capacitive sensor may be used to determine the relative deformation of substrates within the EMS device package, which can in turn be used as part of a pressure, touch, mass, or impact measuring system.

A cooking apparatus includes a cooking cavity to accommodate food to be cooked therein and a rotating unit to rotate while supporting the food. The rotating unit is installed within the cooking cavity to rotate by at least one roller which is in rolling contact with a bottom surface of the cooking cavity. A weight sensor is installed at a portion of the cooking cavity on a movement path of the roller to be temporarily pressurized by the roller when the rotating unit rotates. The weight sensor generates a load output signal according to a pressurized degree when the weight sensor is pressured by the roller, and generates a no-load output signal when the weight sensor is not pressurized by the roller. A control unit calculates a difference between the load output signal and the no-load output signal, and converts the difference to a weight of the food.

A measuring device for a capsule filler machine for pharmaceutical capsules comprising at least one block, provided with a plurality of seats, suitable to house a plurality of bottoms of capsules to be filled is provided. The block is provided with capacitive electronic devices, which are suited to detect parameters concerning the tare of each bottom, parameters concerning the quantities and the types of the products inserted into each bottom, and parameters concerning the filling / emptying of the seats, so as to control, in particular, the filling steps carried out to fill the capsule bottoms with the products.

The bottom shell of a capsule is filled with at least two products, contained in respective tanks, by means of a metering device, which has a metering chamber for receiving a given quantity of product from each tank; and a transfer chamber, which receives and transfers the product from the metering chamber to the bottom shell, and has a weighing device for weighing the product inside the transfer chamber.

The invention discloses a simple self-made electronic scale. The simple self-made electronic scale mainly comprises a display screen, a signal converter, an amplifier, a spring, a tray, a support, a slide rheostat, a power source, a switch and leads, wherein the display screen is connected with the signal converter, the amplifier is connected with the signal converter, the spring is connected with the support, the tray is placed on the support, a left end of the slide rheostat is connected with the support, the switch is connected with the slide rheostat, the switch is connected with the power source, and other parts are connected through the leads. The simple self-made electronic scale is made. When an object needs weighing, the switch is closed firstly; when no weight needs weighing, a resistance value of the slide rheostat is great, a current on the display screen is quite small, no number is displayed; when one weight is placed on the tray, under the action of pressure, the resistance value of the slide rheostat is changed, the current becomes greater, a number is displayed on the display screen; through a number change value on the display screen, mass of the weight can be conveniently known, not only can convenience and rapidness be realized, but also accuracy is high, and the simple self-made electronic scale is convenient for life of people.

A machine for dosing a plurality of products in capsules, or similar containers, includes a plurality of dosing units for filling the capsules with respective products and a turret arrangement that rotates intermittently and is arranged for housing and moving the capsules in sequence through the dosing units. The machine further includes a plurality of checking units, each of which is located downstream of a respective dosing unit for measuring a quantity of product dosed in the capsules by the respective dosing units.

Techniques are disclosed for systems and methods to detect and / or classify a vehicle occupant, such as a passenger seated within the cockpit of a vehicle. An occupant classification system includes anoccupant weight sensor, an occupant presence sensor, and a logic device configured to communicate with the occupant sensors. The occupant weight sensor includes at least first and second conductive electrodes separated by a dielectric layer, top and bottom protective plastic layers configured to support the respective first and second conductive electrodes, and adhesive layers disposed between the plastic layers and the conductive electrodes and between the conductive electrodes and the dielectric layer. The top protective plastic layer is longer and / or wider than the first conductive electrode and the bottom protective plastic layer is longer and / or wider than the second conductive electrode to provide edge protection against electrical shorts for the first and second conductive electrodes.