A method and a system measure interfering influences on a checkweighing device. In the method, external interference data are obtained, as are interference data from the checkweighing device itself and interference data from an object being weighed, by calculating or mapping the weighing error data in the stationary state, in the operating state, and in the weighing state. The system for measuring the interference uses a meter and a processing apparatus. The meter and the processing apparatus perform an interference measurement and a compensation method. The amount of interference in the checkweighing device in each state and the amount of influence of the interference on the weighing performance is obtained, thereby facilitating the production, debugging, maintenance, and use of a checkweighing device.

A method and system for correcting mass flow rate measurements relating to a conveyor used to move a stream of first component material portions to and through a mixing station in which a second component material is dispensed in a predetermined mass percentage of the mass of the first component material portions. The correction of the measurements is adapted to correct for inaccuracies that arise in the measurements due to, for example, differences in the first component material portions properties, differences in the second component material properties, environmental conditions, drift of electronic instruments, and changing conditions that occur during extended use of an upstream conveyor that delivers first component material portions to the mixing station.

A conveyor and metering device having a continuous conveyor belt or conveyor band, sub-regions of this conveyor belt or conveyor band being mounted on weighing devices for determining the mass of the conveyed material, which are connected to an electronic evaluation device, the weighing devices generating a signal proportional to the load of the conveyor belt or conveyor band and transmitting it to the evaluation device, weighing devices are provided, each of which includes a bearing bracket, which is used to receive an attachment in a form-filling manner from the outside, preferably from above, through an opening in the frame of the conveyor and metering device during the operation of the conveyor.

A method for optimizing the running properties of a rotating belt of a weighing belt conveyor includes, for at least one rotation of the belt, determining a unique reference position on the belt. A force signal is determined in dependence on the movement of the belt with respect to the reference position during the at least one rotation. From this force signal, the course of a deviation of the force signal from a set value as a consequence of a disruptive force is determined. At least in correspondence with the direction of the determined deviation, the mass of the belt is increased or reduced at locations in dependence on the position of the belt with respect to the reference position

A method and a system measure interfering influences on a checkweighing device. In the method, external interference data are obtained, as are interference data from the checkweighing device itself and interference data from an object being weighed, by calculating or mapping the weighing error data in the stationary state, in the operating state, and in the weighing state. The system for measuring the interference uses a meter and a processing apparatus. The meter and the processing apparatus perform an interference measurement and a compensation method. The amount of interference in the checkweighing device in each state and the amount of influence of the interference on the weighing performance is obtained, thereby facilitating the production, debugging, maintenance, and use of a checkweighing device.

A conveyor and metering device having a continuous conveyor belt or conveyor band, sub-regions of this conveyor belt or conveyor band being mounted on weighing devices for determining the mass of the conveyed material, which are connected to an electronic evaluation device, the weighing devices generating a signal proportional to the load of the conveyor belt or conveyor band and transmitting it to the evaluation device, weighing devices are provided, each of which includes a bearing bracket, which is used to receive an attachment in a form-filling manner from the outside, preferably from above, through an opening in the frame of the conveyor and metering device during the operation of the conveyor.

A method for optimizing the running properties of a rotating belt of a weighing belt conveyor includes, for at least one rotation of the belt, determining a unique reference position on the belt. A force signal is determined in dependence on the movement of the belt with respect to the reference position during the at least one rotation. From this force signal, the course of a deviation of the force signal from a set value as a consequence of a disruptive force is determined. At least in correspondence with the direction of the determined deviation, the mass of the belt is increased or reduced at locations in dependence on the position of the belt with respect to the reference position.

A yield measurement system for a cold planer having a conveyor is disclosed. The yield measurement system may include a hydraulic motor configured to propel the conveyor, a first sensor configured to generate a first signal indicative of a force acting on the conveyor by material being moved by the conveyor, and a second sensor configured to generate a second signal indicative of a pressure differential across the hydraulic motor. The yield measurement system may also include a controller in communication with the first and second sensors. The controller may be configured to determine when the conveyor is not transferring material based on the second signal, and automatically recalibrate the yield measurement system based on the first signal when the conveyor is not transferring material.

Various embodiments provide a high precision belt weighing device and a high precision belt weighing method. An exemplary high precision belt weighing device includes a set of buffer carrier rollers provided between a first and second belt weighing scale frames. A volume scale hopper is provided above the set of buffer carrier rollers. A transfer conveyor is provided above the volume scale hopper. The first and second belt weighing scale frames, the volume scale hopper, an initial point detector, and a speedometer are connected with a weighing control instrument by cables. Cumulative weights of bulk materials handled by each of the first and second belt weighing scale frames, the corrected weight of bulk materials in the volume scale hopper, and a zero point in the length of a conveying belt detected by the initial point detector are displayed on the weighing control instrument.

A system for calibrating a force transducer that measures a magnitude of a force acting on a conveyor of a cold planer is disclosed. The system may receive, from the force transducer, a first signal indicative of the magnitude of the force acting on the conveyor of the cold planer. The system may compare the first signal and a second signal associated with calibrating the force transducer. The system may output a third signal, indicative of a relationship between the first signal and the second signal, based on comparing the first signal and the second signal.