摘要:
The invention concerns a device for incremental measurement of displacement and position of two objects relatively mobile in translation, comprising a ruler (1) connected to one of the objects and consisting of a metal tape including a scale formed by a longitudinal series of cut-outs (4). The ruler slides in a housing provided with high frequency transmitters (6) on one side of the ruler and high frequency transmitters (7) on the other surface. When the ruler (13) moves along, the receivers supply measurement signals by the alternation of the cut-outs (4) which open the high frequency field on the receivers (7) then by the interposition of the metal intervals which protect them from the high frequency field.
摘要:
Up to now, the extent to which a link chain, e.g. for a yacht anchor, has been payed out has been determined by measuring revolutions on a chain wheel. According to the invention, the chain passes through a sensor which uses a high-frequency electrical field to detect the individual links and sends corresponding counting pulses to an evaluation device which converts the counting pulses into a linear measure. This provides, for example, a simple way of running an anchor chain to a precise depth and afterward hauling it in again.
摘要:
Disclosed are methods and apparatuses for analysis of synthetic ropes, cords, slings, cables and belts (collectively termed "ropes") including but not limited to ropes for bearing loads as well as fibre optic cables. The ropes are provided with one or more elements for magnetic detection, wherein the magnetic detection elements each comprise a metal fibre or an appropriately treated synthetic fibre. The methods and apparatuses encompass detection of induced or residual magnetism or magnetic flux in the magnetic detection element(s), to sense for example lay length and / or damage, breakage or wear of the magnetic detection element(s), indicative of the condition of the rope.
摘要:
A monitoring system for a conveyor of articles is provided. The conveyor of articles comprises a static portion and at least one respective endless transport chain adapted to be moved with respect to the static portion when the conveyor of articles is in operation. The system includes a reference element located on the transport chain, a first sensor integral with the static portion and a second sensor integral with the static portion. Said first and second sensors are distant to each other by a first distance; each sensor is configured for sensing the passage of the reference element close to the sensor itself during the operation of the conveyor. The system further includes counting means coupled with the sensors and configured to measure a first time corresponding to the time elapsed between a first passage of the reference element close to the first sensor and a first passage of the reference element close to the second sensor. The counting means are further configured to measure a second time corresponding to the time elapsed between the first passage of the reference element close to the first sensor and a second passage of the reference element close to the first sensor, or to the time elapsed between the first passage of the reference element close to the second sensor and a second passage of the reference element close to the second sensor. Said second passage is subsequent to the first passage. The system further comprises computing means configured to determine the transport chain movement speed with respect to the static portion based on the first measured time and the first distance, and determine the length of the chain based on the determined movement speed and based on the second measured time.
摘要:
A system (10) and method for collecting data on individual and aggregate use of toilet tissue or other types of rolled absorbent paper in a public washroom includes a sensing system (12) for sensing one or more characteristics of paper use at a particular dispensing location, and a recording system (16) for receiving and recording data from said sensing system, whereby paper use at the dispensing location can be monitored and studied. The system further analyzes (18) the data to determine such things as the total amount of paper used, the duration of pulls on the paper taken by a user and the amount of paper taken by a user per discrete pull.
摘要:
A system (10) and method for collecting data on individual and aggregate use of toilet tissue or other types of rolled absorbent paper in a public washroom includes a sensing system (12) for sensing one or more characteristics of paper use at a particular dispensing location, and a recording system (16) for receiving and recording data from said sensing system, whereby paper use at the dispensing location can be monitored and studied. The system further analyzes (18) the data to determine such things as the total amount of paper used, the duration of pulls on the paper taken by a user and the amount of paper taken by a user per discrete pull.
摘要:
Die vorliegende Erfindung schafft ein Verfahren und eine Vorrichtung zur Ventilhuberfassung. Die Vorrichtung dient zur Ventilhuberfassung eines Ventils (VA) mit einer ferromagnetischen periodisch modulierten Struktur (N,P) auf dem Ventilschaft (VS), wobei eine Sensoreinrichtung (MS, SA) vorgesehen ist, durch die unter dem Einfluss der ferromagnetischen periodisch modulierten Struktur (N,P) auf dem Ventilschaft (VS) ein elektrisches Ausgangssignal (COS, SIN) entsprechend dem Ventilhub des Ventils (VA) erzeugbar ist.