Force-transmitting device with a calibration weight that can be coupled and uncoupled

A technology for transferring devices and calibrating weights, which can be used in measuring devices, weighing equipment testing/calibration, weighing, etc., and can solve problems such as high cost
CN102128671AActive Publication Date: 2011-07-20METTLER TOLEDO INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
METTLER TOLEDO INC
Publication Date
2011-07-20

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Abstract

A force-transmitting device for a gravimetric measuring instrument has a load-receiving part and a stationary part. The load-receiving part is force-transmitting linked either directly or by way of at least one coupling element and at least one lever to a measurement transducer which is arranged on the stationary part. The force-transmitting device further includes a calibration lever whose fulcrum is based on the stationary part. The calibration lever includes a first and a second calibration lever arm, wherein the first calibration lever arm is solidly connected to a calibration weight, while the second calibration lever arm is connected by way of a unidirectional coupling element to the load-receiving part, or to the at least one coupling element, or to a lever arm of the at least one lever. The unidirectional coupling element is divided in two, i.e. into a first coupling element part and a second coupling element part, thus the force transmitted by the unidirectional coupling element is only tensile or compressive force because of the divided design.
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Description

technical field

[0001] The invention relates to a force transmission device for a gravimetric measuring instrument, wherein the force transmission device has a load-receiving part and a stationary part. A weighing pan connected to the load receiving part receives the load to be weighed. The force exerted by the load on the weighing pan is transmitted to the measuring transducer either directly or by means of a reducing lever mechanism. Together with the parallelogram-type guide structure for guiding the weighing pan and the load-receiving part in their vertical movement, the force transmission device and the measuring transducer essentially constitute the weighing cell of the gravimetric measuring instrument. Background technique

[0002] The prior art discloses weighing cells based on various operating principles, such as weighing cells with strain gauges, weighing cells with string oscillators or electromagnetic force compensation (EMFC) weighing cells. Gravimetric measu...

Claims

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