In a method and apparatus for length measurement of a flat good in a goods processing system having first and second stations, each having a sensor in the transport direction of the flat good, a control processor implements a path control and counts encoder pulses of an encoder in the first station. An event is determined by the sensor of the second station, and an associated numerical value Z1 of the encoder pulses is stored in the control processor, as is a numerical value Z2 for a distance between the two sensors is also stored. An additional event is determined by the sensor of the first station, and an associated numerical value Z3 of the encoder pulses is stored. As soon as both events are present, Z2 and the difference Δ=Z3−Z1 are added by the control processor, and the sum is used to designate the length.

A construction machine, which is a feeder vehicle or a road finisher, comprises an operating platform, a material hopper, a conveyor belt system and an electronic control system. The conveyor belt system comprises a conveyor belt and one or more weight sensors which are configured to measure weight force of paving material located on the conveyor belt. In addition, the conveyor belt system comprises one or more inclination sensors which are configured to measure an inclination angle and/or a roll angle of the conveyor belt system. The electronic control system is configured to receive and process data from the one or more weight sensors and the one or more inclination sensors to calculate a mass of the paving material.

A construction machine, which is a feeder vehicle or a road finisher, comprises an operating platform, a material hopper, a conveyor belt system and an electronic control system. The conveyor belt system comprises a conveyor belt and one or more weight sensors which are configured to measure weight force of paving material located on the conveyor belt. In addition, the conveyor belt system comprises one or more inclination sensors which are configured to measure an inclination angle and/or a roll angle of the conveyor belt system. The electronic control system is configured to receive and process data from the one or more weight sensors and the one or more inclination sensors to calculate a mass of the paving material.

A conveyance system includes a conveyance device including a first conveyance mechanism configured to convey freight supplied from a loader, and a second conveyance mechanism configured to convey the freight supplied from the first conveyance mechanism, a weight detection device configured to detect weight of the freight loaded on the second conveyance mechanism, and a control apparatus. The control apparatus includes a first conveyance control unit configured to control the first conveyance mechanism. The first conveyance control unit controls the first conveyance mechanism based on a detection value of the weight detection device.

A conveyance system includes a conveyance device including a first conveyance mechanism configured to convey freight supplied from a loader, and a second conveyance mechanism configured to convey the freight supplied from the first conveyance mechanism, a weight detection device configured to detect weight of the freight loaded on the second conveyance mechanism, and a control apparatus. The control apparatus includes a first conveyance control unit configured to control the first conveyance mechanism. The first conveyance control unit controls the first conveyance mechanism based on a detection value of the weight detection device.

In a dynamic scale for flat goods on their sides, and a control method therefor, flat goods are transported with a continuous counting of encoder pulses, and a weight measurement of a moving flat good is started when the trailing edge of the flat good has reached a first sensor. A first count state of the counter is stored when the leading edge of the flat good reaches a second sensor but a valid weight measurement result is not present. A weight measurement takes place with a transport velocity reduced in steps. After a step-down of the transport velocity of the flat good a subsequent weight measurement is performed with a next lowest transport velocity, and the current counter state is then queried if neither a valid weight measurement result exists, nor can it be established that the trailing edge of the flat good has reached the first sensor, although the leading edge of that flat good has reached the second sensor, as well as a check shows the current counter state corresponds to the sum of the stored counter state and a predetermined count value. The querying steps after the check are repeated as long as the current counter state has not yet reached the sum, and with an additional step-down of the transport velocity of the flat good and weight measurement result, until the check shows the current counter state has reached the sum.

In a dynamic scale for flat goods on their sides, and a control method therefor, flat goods are transported with a continuous counting of encoder pulses, and a weight measurement of a moving flat good is started when the trailing edge of the flat good has reached a first sensor. A first count state of the counter is stored when the leading edge of the flat good reaches a second sensor but a valid weight measurement result is not present. A weight measurement takes place with a transport velocity reduced in steps. After a step-down of the transport velocity of the flat good a subsequent weight measurement is performed with a next lowest transport velocity, and the current counter state is then queried if neither a valid weight measurement result exists, nor can it be established that the trailing edge of the flat good has reached the first sensor, although the leading edge of that flat good has reached the second sensor, as well as a check shows the current counter state corresponds to the sum of the stored counter state and a predetermined count value. The querying steps after the check are repeated as long as the current counter state has not yet reached the sum, and with an additional step-down of the transport velocity of the flat good and weight measurement result, until the check shows the current counter state has reached the sum.

A weighing conveyor system, a checkweigher, and a method for weighing conveyed objects with a checkweigher comprising LIM-driven rollers positioned in a conveying line and position sensors for determining the objects' weights from the motion of the objects across the rollers. The LIM drives the rollers with a constant torque. The acceleration of an object driven by the rollers is inversely proportional to the object's weight. So an object's weight can be determined by the effect of the rollers on its motion.

A weighing conveyor system, a checkweigher, and a method for weighing conveyed objects with a checkweigher comprising LIM-driven rollers positioned in a conveying line and position sensors for determining the objects' weights from the motion of the objects across the rollers. The LIM drives the rollers with a constant torque. The acceleration of an object driven by the rollers is inversely proportional to the object's weight. So an object's weight can be determined by the effect of the rollers on its motion.

A diverting checkweigher comprising a conveyor belt with product-carrying, vertically floating slats that are supported on a weigh scale as the belt passes over it. The floating slats isolate product weight from belt weight. The slats themselves may be laterally stationary or divertible. If divertable, they can divert products based on their weights. If not divertible, the slats can be used with product pushers to divert products for weight-based sorting or rejection. The slats have legs that extend below the bottom of the belt to ride on the scale or be diverted across the belt by a diverter. The pushers are diverted by a diverter.