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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

Active Publication Date: 2015-04-22
METTLER TOLEDO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The contact points between the calibration weight and the calibration weight carrier arm or between the sharp-edged pivot and the support block are thus made with the highest precision, resulting in a correspondingly high cost

Method used

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

Examples

Experimental program
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Embodiment Construction

[0040] figure 1 A schematic side view of a weighing cell 100 with a force transmission device 110 of the first embodiment is shown. The force transmission device 100 has a stationary part 111 and a load receiving part 112 . The load receiving part 112 is guided in parallel motion by being connected to the stationary part 111 by a first parallel guide 114 and a second parallel guide 115 . All pivotal connections 113 of the force transfer device 110 are pictorially represented by solid black circles in the figure and may be implemented in any known design in the prior art. These pivot connections 113 are usually designed as Figure 5-7 This flexure pivot is shown in .

[0041] A load receiving member 140 in the form of a weighing pan is connected to the load receiving part 112 . Furthermore, a measuring transducer 130 capable of generating a force-dependent weighing signal is rigidly mounted on the stationary part 111 . The measuring transducer 130 shown in the figure has a...

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Abstract

The device (110) has a unidirectional coupling element (124) divided into partial coupling elements (125, 126). One of the partial coupling elements is fixed at a load retaining area (112) or another coupling element (119) or a lever arm by a fine adjustable bent support (127), and the other partial coupling element is fixed at a calibration lever arm by another fine adjustable bent support (128). The partial coupling elements are aligned to each other such that traction or compression force is transmitted from the latter support to the former support by the divided coupling element. An independent claim is also included for a gravimetric measuring instrument comprising a pressure sensor for detecting surrounding pressure.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G23/01
CPCG01G21/00
Inventor H-R·伯克哈特F·施奈德D·热努
Owner METTLER TOLEDO INC
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