Calibration system for weighing system

Abstract

A calibration system for a weighing system, where the weighing system comprises a first weighing load sensor and a first container configured to contain a first substance to be weighed by the first weighing load sensor, the calibration system comprising: a first calibration device configured to calibrate the first substance to be weighed by the first weighing load sensor; the calibration device comprises a first force actuating component configured to provide a first calibration force in a gravity direction; and a first calibration load sensor configured to measure a first calibration force; a base member configured to provide a first reaction force in an opposite direction to a first calibration force applied via the first calibration device; the detachable force application component is connected with the first calibration device and is provided with a force application surface, and the force application component is configured to be aligned with at least one part of the weighing system so as to apply the first calibration force to the first container through the first force application surface and transmit the first calibration force to the first weighing load sensor.

Description

Technical Field

[0001] A calibration system for a weighing system, wherein the weighing system includes a first weighing load cell and a first container configured to contain a first substance to be weighed by the first weighing load cell. Background Technology

[0002] Storage tanks or large containers are commonly found in manufacturing facilities, such as in the pharmaceutical and food industries, for storing ingredients or mixtures of components used to produce products, where the product may be a mixture of two or more components. These storage or mixing containers are typically equipped with weighing systems so that users of the container know how much product is present, or so that users can extract a certain amount or dose of product from the tank, and where the weighing system provides an indication of the quantity and / or mass of the extracted product.

[0003] Weighing systems typically employ one or more load cells, which represent the force applied to the load cell via the tank. This representation can be used to add or extract units indicating the weight or mass of the tank and / or its contents. Weighing systems require periodic calibration to ensure they accurately reproduce the mass present within the container.

[0004] There are several methods to perform this type of calibration. One method for calibrating a tank system is to empty the tank and then fill it from its empty state to its full state with a predetermined amount of purified liquid (e.g., purified water). During the filling process, a flow meter is used to monitor the amount of liquid applied to the container so that the weighing system can follow a curve from its empty state to its full state (this data is used to confirm that the weighing system is functioning correctly), or the weighing system can be calibrated based on the results of the tank filling to ensure the accuracy of future measurements. This calibration technique is very time-consuming and expensive because the container must be emptied and cleaned before calibration, and cleaning must be performed after calibration to prepare the container to hold the components to be received in the tank. Furthermore, when using this calibration method, the liquid used for calibration must be discarded because the liquid is no longer clean. Therefore, this calibration technique can be considered very time-consuming, wasteful, and expensive, as the cost of purified liquid can be around €1 per liter, and each container can have a capacity of up to 40,000 liters or more. Therefore, the cost of the liquid can be a very significant factor in the calibration process. Moreover, the time-consuming calibration method using liquid means that the container cannot be used for production, thus limiting production capacity.

[0005] Another method for calibrating a weighing system is to attach a tension load cell and a hydraulic piston in series to the tank, with the other end attached to the foundation. By applying hydraulic pressure to pull the tank towards the foundation, the tension load cell will display the amount of force applied to the tank, allowing the weighing system's output to be compared to the force applied by the hydraulic piston. However, such a calibration system can be quite bulky due to the size of the hydraulic piston and load cell, making it difficult to retrofit such a system to existing containers, especially when the containers are placed close to each other in a manufacturing facility or when there are many process pipes or connections around the container.

[0006] Conventional systems for calibrating storage tanks are found, for example, in WO 2004 / 088259 and WO2020 / 057034. Both systems include a hydraulic system, in the form of a tension hydraulic cylinder, with the cylinder housing attached to a base, and adapted to apply force directly to the load cell via tension or compression. The storage tank or container is typically designed to receive the calibration device, and may have attachment parts welded to the tank, with the calibration device hooked onto the attachment parts to apply force to the weighing system. Therefore, the system may have permanent fixtures that enable calibration of the load cell or weighing system.

[0007] Therefore, there is a need for a calibration system that can be used with any type of weighing system without requiring any modification or adjustment of any component of the weighing system to accommodate the calibration system. Summary of the Invention

[0008] According to the present invention, a calibration system for a weighing system is provided, wherein the weighing system includes a first weighing load sensor and a first container configured to contain a first substance to be weighed by the first weighing load sensor, the calibration system comprising: a first calibration device including a first force actuation member configured to provide a first calibration force in the direction of gravity and a first calibration load sensor configured to measure the first calibration force; a base member configured to provide a first reaction force in a direction opposite to the first calibration force applied via the first calibration device; and a detachable force-applying member connected to the first calibration device and having a force-applying surface, wherein the force-applying member is configured to align with at least a portion of the weighing system to apply the first calibration force to the first container and transmit the first calibration force to the first weighing load sensor via the first force-applying surface.

[0009] The force-applying surface can be one or more surface areas that are in direct or indirect contact with the weighing system or the container or tank of the weighing system. Therefore, the first force-applying surface can contact the weighing system in one or more areas, such that the first force-applying surface can be divided into multiple areas configured to transmit the first calibration force to the weighing system and / or the container of the weighing system.

[0010] By incorporating a detachable force-applying component, a calibration system can be integrated into the weighing system without requiring any permanent modifications to the actual weighing system, other than applying or installing the calibration system. The force-applying component can be inserted into the location within the weighing system where a first calibration force is applied to the load cell or weighing device of the weighing system, and the calibration load cell records the magnitude of the first calibration force applied to the weighing system. The calibration load cell can be understood as a reference load cell, which provides a reference to the magnitude of the force applied via the calibration system, which can be used for comparison with the magnitude of the force recorded by the load cell of the weighing system.

[0011] When a mixture requires a specific amount of chemicals, chemical companies' production sites rely heavily on weighing systems, and providing the precise weight of a particular chemical for the mixture can be critical, especially in the pharmaceutical industry. A production site may have dozens, hundreds, or thousands of identical or different storage tanks to hold various chemicals, each with its own weighing system, and each of these systems must be calibrated regularly to ensure and verify that the weight of the substance is correct every time. Any discrepancies can have devastating consequences, as the precise quantity or weight of a substance can significantly impact the validity, reliability, and / or legality of dispensing the amount of substance and / or the weight of the substance used in the mixture. This can be particularly important for the precise dosage of pharmaceuticals or chemical products or substances.

[0012] By providing a calibration system with detachable force-applying components, every tank in the production site can be calibrated without requiring structural changes to the tank or container for the calibration process. There is no need to weld brackets, coupling holes, or any other type of attachment elements to the tank, as the detachable force-applying components can be positioned appropriately on the tank and / or container, and the force can be applied directly to the existing components of the tank / container to transfer the calibration force to the tank / container's weighing system.

[0013] The detachable force-applying component can be connected to a force calibration device, which in turn can be connected to a base. When the calibration device applies a calibration force to the tank and / or container, the base provides a reaction force in the opposite direction, allowing the force to be transmitted through the container to the load cell of the weighing system. After calibration, the detachable force-applying component can be disconnected from the container or the weighing system, and the weighing system is fully restored to its state before the load cell calibration.

[0014] Therefore, the calibration system can be applied to a second weighing system and / or container, and the calibration process can be repeated on the second weighing system and / or subsequent weighing systems.

[0015] In the context of this application, the term "container" as used in relation to a weighing system can mean a vessel, dish, tank, hopper, or any type of device capable of holding and dispensing substances from the device.

[0016] In the context of this application, the term "base" can be understood as any component capable of providing a reaction force to the force-applying component. A base can be a foundation, a floor, the frame of a mobile container, or a separate device that mechanically couples a calibration device to a weighing system to apply a reaction force to the force-applying component.

[0017] The detachable force application component can be in the form of a detachable clamp or a detachable hook, which can be applied directly or indirectly to the storage tank to provide a mechanical connection between the existing components of the container and the calibration device, allowing the calibration component to apply calibration force to the container.

[0018] The detachable force-applying component can be connected to the first calibration device via a force-transmitting component, which can be a metal rod, chain, or belt, and a first end of the force-transmitting component is connected to a force-actuating component or a first calibration load sensor, thereby allowing a mechanical connection to be established between the first calibration device and the detachable force-applying component.

[0019] Furthermore, the detachable force-applying component may include a force-transmitting component and can be directly connected to a calibration component, i.e., a force-actuated component or a calibration load cell. The detachable force-applying component may be in the form of a detachable belt, chain, or wire that is directly applied to the storage tank, and wherein the belt, chain, or wire includes a force-applying surface to transmit force to the container.

[0020] The calibration device can be configured to provide tension between the force-applying component and the base, so that the tension can be transmitted to the weighing system as a compressive force, causing the force-applying component to push the weighing device to transmit the force through the container to the load sensor of the weighing device.

[0021] In one exemplary embodiment of this disclosure, the calibration system may include a second calibration device. The second calibration device can be used to provide a second calibration force for calibrating the weighing system. The second calibration device may include a second calibration load cell and a second force actuation component. Therefore, the calibration force can be increased by introducing a second calibration device. The calibration system may include three or more calibration devices, or multiple calibration devices. Any of the second, third, and fourth calibration devices may have the same technical features as the first calibration device.

[0022] The detachable force-applying component may be one or more elements configured to apply a first calibration force to the first container.

[0023] The detachable force-applying component can be configured to connect to the upper part of the first container of the weighing system.

[0024] The detachable force-applying component can be in the form of a clamp, which can be configured to clamp onto an existing component of the first container of the weighing system. Therefore, the clamp can, for example, be configured to clamp onto the container's outlet. This allows the detachable force-applying component of the calibration system to be attached using existing components of the container without requiring permanent modification of the weighing system's container.

[0025] In one exemplary embodiment, the force application of the first calibration device and the second calibration device can be synchronized, such that the first calibration force and the second calibration force are applied simultaneously.

[0026] In one exemplary embodiment of this disclosure, the second calibration device may be connected to a detachable force-applying component. By connecting the second calibration device to the detachable force-applying component, the first and second calibration devices can apply an increased force to the detachable force-applying component, thereby increasing the force that the detachable force-applying component can apply to the weighing system. The first and second calibration devices may be configured to provide tension toward the force-applying component in a direction toward the base, wherein this force can be transmitted to the weighing device. The first and second calibration devices may be configured to provide tension, wherein a first force-applying axis of the first calibration device is substantially parallel to a second force-applying axis of the second calibration device. The calibration force may have a third force-applying axis parallel to the first and second force-applying axes. The third force-applying axis of the force-applying device may be substantially vertical (in the direction of gravity), the second force-applying axis of the second calibration device may be substantially vertical, and / or the first force-applying axis of the first calibration device may be substantially vertical.

[0027] In one exemplary embodiment of this disclosure, a first calibration device may provide a first portion of an applied first calibration force via a first force-applying surface, and a second calibration device may provide a second portion of the applied first calibration force via the first force-applying surface. Thus, the first and second calibration devices are configured to provide at least a portion of the first calibration force to the weighing system. In the example where the calibration system includes both the first and second calibration devices, the forces applied via each calibration device can be aggregated into a first calibration force because both calibration devices apply the force via the same force-applying surface.

[0028] In one exemplary embodiment of this disclosure, a first calibration device may be connected to a force-applying component on one side of the force-applying surface, and a second calibration device may be connected to the force-applying component on the opposite side of the force-applying surface. Therefore, the first and second calibration devices can be mechanically coupled to the force-applying component, wherein a first calibration force and a second applied force can be provided on each side of the force-applying surface. When the first and second calibration forces are substantially equal, this allows the force vector of the force-applying surface to be substantially parallel to the force vectors of the first and second calibration forces.

[0029] In one embodiment of this disclosure, the first force-applying shaft and / or the second force-applying shaft may be arranged on either side of the force-applying shaft of the weighing device. The first force-applying shaft, the second force-applying shaft, and the force-applying shaft of the weighing device may be parallel to each other and may extend substantially such that each force-applying shaft intersects a straight line orthogonal to the extension of each force-applying shaft.

[0030] The force-applying component may have a force-applying surface that is substantially equidistant (equal distance) from the connection between the first calibration device and the second calibration device, such that when a calibration force is applied via the first calibration device and the second calibration device, the force-applying component will apply an equal force via the calibration device, thereby uniformly applying the calibration force to the weighing device, wherein the relative lever of the force-applying component is equal in length to the force-applying surface, thereby ensuring that the calibration force is uniformly applied to the weighing device.

[0031] In one exemplary embodiment of this disclosure, the force-applying component may be a rigid, elongated member whose length is longer than the diameter and / or width of the weighing system. This allows the force-applying component to extend outward from the weighing system, such that a first end and / or a second end of the elongated member can be configured to extend vertically away from the weighing system. Therefore, one (or more) calibration devices may be positioned on the side of the weighing device, extending from the base to the force-applying component, with one (or more) calibration devices positioned outside the outermost periphery of the weighing device.

[0032] In one exemplary embodiment of this disclosure, the first calibration force can be configured to be applied in a direction away from the force-applying surface. Therefore, the first calibration force can extend in a direction away from the force-applying surface, wherein at least 90% of the calibration force applied to the weighing device is in a direction parallel to or coaxial with the force-applying axis of the weighing device. The first calibration force applied via the force-applying surface can be guided along the direction of gravity, and wherein the force-applying component and / or the force-applying surface is arranged on the other side of the weighing device and configured to provide a thrust to the weighing device. The first calibration device can provide a tensile force to the force-applying component, wherein the force-applying component can provide a thrust to the weighing device. Therefore, the calibration device can provide a tensile force between the base and the force-applying component, while the force-applying component can provide a compressive force between the force-applying component and the base.

[0033] In one exemplary embodiment of this disclosure, the base component is a detachable base component having a second force-applying surface arranged opposite to the first force-applying surface. Therefore, the first and second force-applying components can be vertically positioned on opposite sides of the weighing device such that they are pulled towards each other, thereby providing compressive force to the weighing system and / or the load cell of the weighing system.

[0034] The calibration system can be configured to simulate the gravity exerted by substances applied through containers and / or tanks of the weighing system.

[0035] The first calibration device may have a hydraulically actuated first force component, such that the drive device is a hydraulic device configured to apply a first calibration force. The hydraulic device may be connected to a hydraulic pump, which may be connected to two or more hydraulic devices and apply equal hydraulic pressure to the two or more hydraulic devices. Therefore, when there are two or more hydraulic devices, each device can provide an equal calibration force. For example, if the first calibration device provides a calibration force of 1 kN, then the second calibration device can also provide a calibration force of 1 kN.

[0036] This disclosure may also relate to a calibration assembly including a calibration system and a weighing system according to this disclosure, wherein the weighing system includes a first weighing load sensor and a first container configured to contain a first substance to be weighed by the first weighing load sensor. Attached Figure Description

[0037] The following is an explanation of exemplary embodiments with reference to the accompanying drawings, wherein:

[0038] Figure 1 This is a schematic front view of one embodiment of the calibration system according to this disclosure.

[0039] Figure 2 This is a schematic front view of a second embodiment of the calibration system according to this disclosure, and

[0040] Figure 3 This is a schematic front view of one embodiment of the calibration system according to this disclosure. Detailed Implementation

[0041] Various exemplary embodiments and details will be described below with reference to the accompanying drawings. It should be noted that the drawings may be drawn to scale or not, and elements with similar structures or functions in all drawings are indicated by the same reference numerals. It should also be noted that the drawings are merely for the purpose of illustrating embodiments. They are not intended as an exhaustive description of this disclosure or as a limitation on the scope of this disclosure. Furthermore, the illustrated embodiments do not need to have all the aspects or advantages shown. Aspects or advantages described in connection with a particular embodiment are not necessarily limited to that embodiment and may be practiced in any other embodiment, even if not shown or explicitly described therein.

[0042] The use of terms such as “first,” “second,” “third,” “fourth,” “primary,” “secondary,” and “tertiary” does not imply any specific order, but rather includes these terms to identify individual elements. Furthermore, the use of terms such as “first,” “second,” “third,” “fourth,” “primary,” “secondary,” and “tertiary” does not indicate any order or importance, but is used to distinguish one element from another. Please note that the terms “first,” “second,” “third,” “fourth,” “primary,” “secondary,” and “tertiary” are used here and elsewhere for labelling purposes only and are not intended to indicate any specific spatial or temporal order.

[0043] Furthermore, marking the first element does not imply the existence of the second element, and vice versa.

[0044] Figure 1 This is a schematic front view of a calibration system 1 used for calibrating a weighing system 3 according to this disclosure. The weighing system 3 includes a container 5 for containing a substance 7, wherein the container 5 has an upper portion 9 and a lower portion 11, wherein the lower portion 11 includes support legs 13 for securing the container 5 to a base 15 (or foundation). The weighing system 3 may include one or more weighing devices 17, such as load cells 17, capable of recording the weight of the substance 7 within the container 5. The load cells 17 are located between the container 5 and the base 15, wherein any weight change of the substance 7 within the container 5 can be recorded and monitored by the load cells 17. The load cells 17 may be connected to a monitoring device (not shown), thereby allowing a user to record and monitor the current weight of the substance 7 and monitor and record any weight change of the substance 7 within the container 5.

[0045] However, weighing systems must be calibrated periodically to ensure their accuracy and allow users to rely on load cell readings at any time. This calibration can be very time-consuming and costly, as some methods require emptying, cleaning, and refilling the container with a known substance to accurately calibrate the load cells. Other calibration systems require modifying the container by attaching one or more attachment elements to provide calibration force between the tank and the base. In existing environments, this can be extremely expensive, as each tank must be emptied before modification, and the attachment elements must be welded or at least securely attached to the tank to withstand the calibration force applied via the calibration device.

[0046] However, for the present disclosure, the solution requires no modification to the storage tank, and the system can be installed on any storage tank without emptying or modifying it. The calibration system 1 according to the present disclosure may include one or more calibration devices 19, wherein a first end 20 of each calibration device 19 is connected to a base 15 via a first attachment member 21, and a second end 23 of each calibration device 19 is connected to a force-applying member 25 via a second attachment member 27. The calibration device 19 may include a first force-actuating member 29 configured to provide a first calibration force A, wherein the calibration device 19 provides tension between the force-applying member 25 and the base 15. The first calibration force A may be recorded by a load sensor 31 arranged in connection with the calibration device 19, which records the magnitude of the force applied between the base 15 and the force-applying member 25 via the calibration device 19. Therefore, the base 15 provides a reaction force to the force applied to the force-applying member 25, wherein the base 15 can be considered a static component, and the force-applying member 25 can be considered a dynamic component.

[0047] exist Figure 1 In the illustrated embodiment, the force-applying component 25 may be a detachable force-applying component 25, wherein the force-applying component 25 has a first end 33 and a second end 35, and is in the form of an elongated member 37 extending beyond the outer periphery 39 of the container 5 in the horizontal direction B, such that each end 33, 35 extends beyond the outer periphery 39 of the container 5 in the horizontal direction B. The force-applying component 25 may have a first force-applying surface 41 aligned with the container 5 along the upper surface 43 of the container 5, so as to transmit the first calibration force A through the container 5 to the weighing system 3. Therefore, the load sensor 17 of the weighing system 3 records the first calibration force A as an increase in the weight of the container 5 without changing the weight of the substance 7 inside the container 5.

[0048] In this embodiment, the calibration system 1 includes a first calibration device 19 and a second calibration device 19', which may be identical to each other, wherein each of the calibration devices 19 and 19' is connected to each end of the elongated member 37 (force-applying component), namely, the first end 33 and the second end 35, and wherein the force-applying surface 41 is arranged in the region between each end 33 and 35 of the elongated member 37.

[0049] Therefore, when calibrating the weighing system 3, the first calibration device 19 and the second calibration device 19' can be attached to the base 15, the detachable force-applying component 25 can be positioned on the upper surface 43 of the container 5, and the calibration devices 19 and 19' can be connected to the force-applying component 25. Subsequently, all slack in the calibration devices 19 and 19' between the base 15 and the force-applying component 25 is removed. Then, the load cell 173 of the weighing system is zeroed, and the load cells 31 of the calibration devices 19 and 19' are also zeroed. The hydraulic pump 45 can then apply hydraulic pressure to the force-actuating component 29 via the hydraulic line 46, thereby providing tension A between the detachable force-applying component 25 and the base 15. The tension A is transmitted to the container 5 via the force-applying surface 41 and the upper surface 43 of the tank, and the tension A is recorded as a compressive force C in the load cell 17 of the weighing system 3. By providing such a calibration system 1, the first force recorded by the load cell 31 of the first calibration device 19 and the second force recorded by the load cell 31 of the second calibration device 19' can be recorded as the tank calibration force, which is recorded by the load cell 17 of the weighing system 3 at a 1:1 ratio. Therefore, if a force of 1 kN is applied via the calibration devices 19 and 19', the load cell 17 of the weighing system 3 will record an increase of 1 kN in force; if it does not, the load cell 17 must be calibrated to display the correct force to the recorder. Thus, the calibration system 1 can apply a calibration force to the weighing system 3 at a 1:1 ratio to achieve the calibration purpose.

[0050] It should be understood that the tanks or containers 5 have different sizes and shapes, and the first force-applying surface 41 can be adjusted for each specific tank to allow the calibration force A to be applied to the container 5 of the weighing system 3.

[0051] Figure 2 It shows the relationship with Figure 1 The calibration system 1 and weighing system 49 shown are similar, except that the weighing system 3 is on wheels 47 and can be considered as a mobile weighing system 49. The weighing system 49 includes a container 5 configured to hold material 7, as well as support legs 13 and load cells 17. However, the weighing system 49 includes a chassis 51 arranged between the wheels 47 and the support legs 13, wherein the chassis 51 can be a rigid frame supporting the entire weight of the weighing system 49 above the chassis 51.

[0052] The wheels 47 of the weighing system 49 can be made of an elastic material, allowing the weighing system 49 to easily roll from one position to another. However, since the elastic material of the wheels 47 connecting the weighing system 49 to the ground can absorb forces, the calibration system 1 may also include a second force-applying member 53, which may have a second force-applying surface 55, wherein the second force-applying member 53 may be aligned with the lower surface 57 of the chassis 51, and wherein the second force-applying member 53 may act as a base 15', providing a reaction force to the calibration devices 19, 19' via a first attachment member 65 attached to the second force-applying member 53. The second force-applying member 53 may be in the form of an elongated member 59 extending in the horizontal direction B beyond the outer periphery 39 of the container 5, such that each end 61, 63 extends in the horizontal direction B beyond the outer periphery 39 of the container 5. The second force-applying component 53 may have a first force-applying surface 41, which is aligned with the lower surface 57 of the base 51 to transmit the first calibration force A to the weighing system 49 via the container base 51. Therefore, the first calibration force A can be recorded by the load sensor 17 of the weighing system 3 as an increase in the weight of the container 5 without changing the weight of the substance 7 inside the container 5.

[0053] Therefore, it can be done according to Figure 1 The calibration is performed as shown in the implementation scheme, wherein the force-applying component 25 and the second force-applying component 53 transmit the calibration force to the weighing system 49, and wherein the chassis 51 and the second force-applying component 53 provide reaction forces to the force-applying component 25 and the container 5.

[0054] It should be understood that the weighing system 49 can be used Figure 1 The calibration system 1 shown is used for calibration, wherein the chassis 51 can be raised from the base 15 by providing a rigid block or lifter to the chassis 51, thereby ensuring that the calibration force is not transmitted to the elastic components of the wheel 47.

[0055] Figure 3 The present disclosure illustrates an embodiment in which, as shown, Figure 2 The mobile weighing system 49 shown is introduced into, for example, Figure 1The embodiment of the calibration system 1 is shown. Therefore, a mobile weighing system 49 can be introduced between first attachment members 21 attached to a foundation, base, or floor of the site, and wherein a force-applying member 25 is connected to the base 15 via a first calibration device 19 and a second calibration device 19'. Thus, when a first calibration force A is applied to the force-applying member 25, the force-applying member 25 compresses the weighing system 49 between the force-applying member 25 and the base 15 (floor). Therefore, when the wheel 47 is compressed to its fully compressed state, the load sensor 17 of the weighing system 49 records the first calibration force A, and the calibration force A recorded by the load sensors 31 of the calibration devices 19, 19' can be compared with the force recorded by the load sensor 17 of the weighing system 49, thereby allowing the calibration of the weighing system 49.

[0056] Therefore, once the weighing system 49 is calibrated, the calibration force can be released, and the weighing system 49 can roll off the calibration system 1 via the wheel 47, after which the next weighing system 49 can take over. Figure 3 The space occupied by the weighing system 49 shown.

[0057] Figure 1 and Figure 3 The implementation scheme of the calibration system 1 shown can be regarded as a weighing station, in which a mobile weighing system 49 can be introduced to the position of the calibration devices 19, 19' and calibrate one at a time.

[0058] Note that the word "including" does not necessarily exclude the presence of other elements or steps besides those listed.

[0059] Note that the words "a kind" and "one" before an element do not preclude the existence of multiple such elements.

[0060] It should also be noted that no reference numerals in the drawings limit the scope of the claims.

[0061] Although features have been shown and described, it will be understood that they are not intended to limit the claimed invention, and it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the claimed invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive. The claimed invention is intended to cover all alternatives, modifications, and equivalents. Tag list 1. Calibration System 3 Weighing System 5 containers 7 substances 9. The upper part of the container 11. The lower part of the container 13 supporting legs 15 bases 17 Weighing System Load Sensor 19 First Calibration Device 19' Second Calibration Device The first end of the 20 calibration device 21 First Attachment Component 23. The second end of the calibration device 25 Force-applying components 27 Second Attachment Component 29 First force actuation component 31 load cells 33 The first end of the force-applying component 35 The second end of the force-applying component 37 slender components 39. Container periphery 41 Force-applying surface 43. The upper surface of the container 45 hydraulic pump 46 Hydraulic lines 47 wheels 49 Weighing System 51 chassis 53 Second force-applying component 55 Second force-applying surface The lower surface of the 57 chassis 59 slender components 61 The first end of the second force-applying component 63 The second end of the second force-applying component 65 The first attachment of the second force-applying component A First Calibration Force B Horizontal direction C compression force

Claims

1. A calibration system for a weighing system, wherein the weighing system comprises a first weighing load cell and a first container configured to contain a first substance to be weighed by the first weighing load cell, the calibration system comprising: - a first calibration device comprising a first force actuation member configured to provide a first calibration force in a direction of gravity, and a first calibration load cell configured to measure the first calibration force; - a base member configured to provide a first counter force in an opposite direction to the first calibration force applied via the first calibration device, and - a detachable force application member connected with the first calibration device and having a force application surface, wherein the force application member is configured to align with at least a part of the weighing system so as to apply the first calibration force to the first container via the first force application surface and to transmit the first calibration force to the first weighing load cell.

2. The calibration system according to claim 1, wherein the calibration system comprises at least a second calibration device.

3. The calibration system according to claim 2, wherein the second calibration device is connected with the detachable force application member.

4. The calibration system according to claim 2, wherein the first calibration device provides a first portion of the first calibration force applied via the first force application surface, and the second calibration device provides a second portion of the first calibration force via the first force application surface.

5. The calibration system according to claim 2, wherein the first calibration device is connected with the force application member on one side of the force application surface, and the second calibration device is connected with the force application member on the other side of the force application surface.

6. The calibration system according to claim 2, wherein the force application of the first calibration device and the second calibration device is configured to be synchronized.

7. The calibration system according to claim 2, wherein a first force application axis and / or a second force application axis are arranged on both sides of a weighing device force application axis.

8. The calibration system according to any one of the preceding claims, wherein the first calibration force is configured to be applied in a direction away from the force application surface.

9. The calibration system according to any one of the preceding claims, wherein the force application member is a rigid elongated member having a length greater than a diameter and / or a width of the weighing system.

10. The calibration system according to any one of the preceding claims, wherein the force application surface can be one or more surface areas which are in direct or indirect contact with the weighing system, or in direct or indirect contact with a container or tank of the weighing system.

11. The calibration system according to any one of the preceding claims, wherein the base member is a detachable base member and has a second force application surface arranged opposite the first force application surface.

12. A calibration assembly comprising a calibration system according to any one of the preceding claims and a weighing system, wherein the weighing system comprises a first weighing load cell and a first container configured to contain a first substance to be weighed by the first weighing load cell.

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