Device and method for determining weighing conditions of dynamic weighing device

A calibration device for determining a specific response characteristic value of a filter of a dynamic weighing device for subsequently taking weight measurements of articles, the dynamic weighing device comprising a weight sensor for sensing the weight of successive articles and producing a weight signal corresponding to the weight of a weighed article, the filter for filtering the weight signal and outputting a filtered weight signal, and means for reading the weight of the successive articles at the specific response characteristic value determined by the calibration device at a specific time point, the calibration device comprising:

• means for switching a response characteristic of the filter among a plurality of values;
• means for reading the filtered signal from the filter at the specific time point during which the weight of a first article is being sensed by the sensor at least twice for each response characteristic value;
• means for storing the read values;
• means for calculating a parameter value representing dispersion of the read values at each response characteristic value;
• means for selecting one of the parameter values representing dispersion based upon a predetermined criterion;
• means for determining the response characteristic value associated with the selected parameter value;
• and
• means for setting the specific response characteristic value of the filter of the dynamic weighing device as the response characteristic value associated with the selected parameter value, whereby the successive articles are subsequently consecutively weighed by the dynamic weighing device at the specific response characteristic value of the filter.

A calibration device for determining a specific reading time point and a specific filter response characteristic value at which weight measurements of articles are taken by a dynamic weighing device, the dynamic weighing device comprising a weight sensor for sensing the weight of successive articles and producing a weight signal corresponding to the weight of a weighed article, a filter for filtering the weight signal and outputting a filtered weight signal, and means for reading the weight of the successive articles at the specific reading time point and the specific response characteristic value determined by the calibration device, the calibration device comprising:

• means for switching a response characteristic of the filter among a plurality of values;
• means for reading the treated signal from the filter at least twice at each of a plurality of time points during which the weight of a first article is being sensed by the sensor for each response characteristic value;
• means for storing the read values;
• means for calculating a parameter value representing dispersion of the read values at each time point at each response characteristic value;
• means for selecting one of the parameter values representing dispersion based upon a predetermined criterion;
• means for determining the time point and response characteristic value associated with the selected parameter value;
• and
• means for setting the specific reading time point and the specific response characteristic value of the dynamic weighing device as the time point and response characteristic value associated with the selected parameter value, whereby the successive articles are subsequently consecutively weighed by the dynamic weighing device at the specific reading time point and specific response characteristic value.

A calibration method for determining a specific reading time point at which weight measurements of articles are taken by a dynamic weighing device, the dynamic weighing device comprising a weight sensor for sensing the weight of successive articles and producing a weight signal corresponding to the weight of a weighed article, and a means for reading the weight of the successive articles at the specific reading time point determined by the calibration method, the calibration method comprising:

• reading the weight signal value of a sample article at least twice at each of a plurality of predetermined time points during which the weight of the sample article is being sensed by the sensor;
• storing the read values;
• calculating a parameter value representing dispersion of the read values at each of the predetermined time points;
• selecting one of the parameter values representing dispersion based upon a predetermined criterion;
• determining the time point associated with the selected parameter value;
• and
• setting the specific reading time point of the dynamic weighing device as the time point associated with the selected parameter value, whereby the successive articles are subsequently consecutively weighed by the dynamic weighing device at the specific reading time point.

A calibration method for determining a specific response characteristic value of a filter of a dynamic weighing device for subsequently taking weight measurements of articles, the dynamic weighing device comprising a weight sensor for sensing the weight of successive articles and producing a weight signal corresponding to the weight of a weighed article, the filter for filtering the weight signal and outputting a filtered weight signal, and means for reading the weight of the successive articles at the specific response characteristic value determined by the calibration method at a specific time point during which the weight of a first article is being sensed by the sensor, the calibration method comprising:

• switching a response characteristic of the filter among a plurality of values;
• reading the filtered signal from the filter at the specific time point at least twice for each response characteristic value;
• storing the read values;
• calculating a parameter value representing dispersion of the read values at each response characteristic value;
• selecting one of the parameter values representing dispersion based upon a predetermined criterion;
• determining the response characteristic value associated with the selected parameter value;
• and
• setting the specific response characteristic value of the filter of the dynamic weighing device as the response characteristic value associated with the selected parameter value, whereby the successive articles are subsequently consecutively weighed by the dynamic weighing device at the specific response characteristic value of the filter.

A calibration method for determining a specific reading time point and a specific filter response characteristic value at which weight measurements of articles are taken by a dynamic weighing device, the dynamic weighing device comprising a weight sensor for sensing the weight of successive articles and producing a weight signal corresponding to the weight of a weighed article, a filter for filtering the weight signal and outputting a filtered weight signal, and means for reading the weight of the successive articles at the specific reading time point and the specific response characteristic value determined by the calibration method, the calibration method comprising:

• switching a response characteristic of the filter among a plurality of values;
• reading the treated signal from the filter at least twice at each of a plurality of time points during which the weight of a first article is being sensed by the sensor for each response characteristic value;
• storing the read values;
• calculating a parameter value representing dispersion of the read values at each time point at each response characteristic value;
• selecting one of the parameter values representing dispersion based upon a predetermined criterion;
• determining the time point and response characteristic value associated with the selected parameter value;
• and
• setting the specific reading time point and the specific response characteristic value of the dynamic weighing device as the time point and response characteristic value associated with the selected parameter value, whereby the successive articles are subsequently consecutively weighed by the dynamic weighing device at the specific reading time point and specific response characteristic value.