Mettler-toledo Gmbh

Mettler-toledo Ag

Metter-toledo Ag

Metter-toledo Gmbh

Swisscom Mobile Ag

Urs Loher

Jean-Maurice Tellenbach

Volker Ziebart

Hans-Rudolf Burkhard

Daniel Reber

Andreas Metzger

Stephan Baltisberger

Cyrill Bucher

Aaron Skidmore

Klaus Peter Selig

Kurt Jensen

Richard Bruderer

Cryrill Bucher

Chandradeo Sawh

Arne Burisch

A parallel guide of a force transmission device has movable and fixed parallel legs, and first and second parallel guiding elements. Thin-point flexional bearings connect the parallel legs to the parallel guiding elements. The movable parallel leg is guided by the parallel guiding element on the fixed parallel leg. A force transmission lever, arranged on the fixed parallel leg, has a lever bearing, and a first lever arm. The force transmission lever is pivotably mounted on the lever bearing and the first lever arm is connected to the movable parallel leg to transmit force. The force-transmitting connection is produced by a coupling element having at least one further thin-point flexional bearing, with at least one functional region of the force transmission device being formed monolithically. A functional region associates at least one bearing point with at least one of the parallel legs, the force transmission lever, and the coupling element.

Monolithic weighing cell with bearings formed by additive manufacturing

A load cell () has a deformable body with upper and lower contact surfaces (), through which a force is introduced. Support points () of the contact surfaces define a line of action () of the force. At least one column-shaped portion () of the deformable body has a central longitudinal axis () and a circumferential surface whose generating line runs parallel to the central longitudinal axis (). A first determining means () installed on the column-shaped portion converts a mechanical deformation into an electronic signal, and a second determining means () installed on the column-shaped portion converts a deviation of the central longitudinal axis () from the line of action () into a representative signal. Each determining means has at least one strain gauge.

Load cell with a means to compensate for errors due to misalignment

A device and method for effectuating the temperature compensation testing of digital load cells. The device uses conductive heat transfer to establish and maintain the temperature of the load cell(s) during testing. The device may include a vessel into which one or more load cells to be tested are placed. Temperature control of the load cells may be accomplished by circulating a temperature controlled fluid through the vessel. The vessel containing the one or more load cells may then be placed in a load application device that applies a load(s) to the one or more load cells during testing. Readings from the one or more load cells are used to establish a temperature compensation factor for each load cell tested. In other embodiments, temperature control of the load cells may be accomplished by placing the load cells in contact with a solid heat transfer element(s).

Device and method for temperature compensation testing of digital load cells

An interior space of the at least one housing of a force-measuring device is filled with a gas composition that is distinguishable in at least one parameter from the ambient atmosphere. A sensor that is arranged in the interior space, or on the housing, measures this distinguishable parameter. A processing unit of the force-measuring device compares signals obtained from the sensor to monitor and determine the condition of the force-measuring device.

Method of monitoring and/or determining the condition of a force-measuring device, and force-measuring device

A calibration weightfor a gravimetric measuring instrument includes a calibration weight base modulewhich is equipped with at least one attachment area. The calibration weightfurther has at least one positioning meansand at least one transfer element. The attachment areaallows supplemental weightsto be built onto the calibration weight base module; the positioning meansserves to position the calibration weightin relation to the calibration weight arm; and the transfer elementserves as the place through which the transfer mechanism leverapplies its force and effects a transfer.

Modular calibration weight

A modular force-measuring cell is disclosed which includes a force transducer equipped with sensors that measure changes occurring in the state of the force transducer as a result of a force or temperature. The force-measuring cell also includes a memory module for storing compensation data associated with the modular force-measuring cell. The memory module and at least one converter circuit for the conversion of the signals delivered by the sensors are arranged in a circuit module that is mechanically and thermally coupled to the force transducer.

Modular force-measuring cell for a weighing scale, and weighing scale

A force-measuring cell is disclosed which is equipped with a force transducer which includes a deformable body that is equipped with sensors. The deformable body connects a housing-mounted fixed part to a force-introducing part of the force transducer. The sensors are connected to electrical conductors of at least one flat ribbon cable which leads to a circuit module that serves to process the measuring signals and contains the connections for joining the sensors together in a measuring bridge circuit. The conductor tracks can be configured so that all of the connecting leads from nodal points of a measuring bridge to the contact terminals of the sensors have at least approximately equal resistance values.

Force-measuring cell for a weighing scale, and weighing scale

An exemplary mounting arrangement serves for the mounting of a force transducer that has a sensor-equipped core part connecting a support part to a force-application part. The support part can be bolted to a fastening part by mounting screws, and the force-application part can be bolted to a weighing pan carrier by means of mounting screws. The support part and the force-application part of the force transducer can each have a triplet of threaded holes serving to receive the mounting screws. Each triplet forms an isosceles triangle whose apex points towards the deformable body. The symmetry axes of the triangles lie in a plane that is parallel to the displacement travel of the force transducer. The mounting arrangement can be further configured to provide an effective overload protection in a low-profile design and to provide a thermally uncoupled fixation.

Growing community of inventors

Widen, Switzerland

Urs Loher