Pepperl + Fuchs Gmbh

Pepper1 + Fuchs Gmbh

Dierk Schoen

Dionissios Divaris

Dionysios Divaris

The invention relates to a method and a device for the contactless detection of laminated, flat objects, particularly sheet-like recording media. There is a galvanic separation and mechanical decoupling between the transmitter and receiver to improve detection. These measures can be further improved with correction characteristic methods.

Method and device for the detection of recording media

The invention relates to a proximity switch for the detection of objects, comprising a sleeve-type housing, comprising a transducer unit disposed at a measuring end of said sleeve-type housing, the transducer unit comprising a transducer receptacle and a transducer element disposed therein for detecting a physical measurand, comprising a connecting piece disposed at a connecting end of said sleeve-type housing, comprising an electronic assembly disposed on a printed circuit board accommodated in said sleeve-type housing and having a control and evaluation unit adapted to control said transducer element, to evaluate signals measured by said transducer element and to emit switching signals to an environment, wherein variously colored light-emitting diodes are disposed on said printed circuit board at the measuring end and at the connecting end for indicating operational and/or switching states, wherein said transducer receptacle exhibits a transparent region disposed around a housing axis and/or a transparent region at an end face. The proximity switch is characterized in that said connecting piece has a peripheral transparent region, that said transparent regions at said measuring end and at said connecting end are optically homogeneous, that said transparent regions are each capable of being monochromatically illuminated by said light-emitting diodes and that said control and evaluation unit is adapted to control the respective variously colored light-emitting diodes for indicating different operational and/or switching states.

Proximity switch

A method and a device for the contactless detection of laminated, flat objects, particularly sheet-like recording media. There is a galvanic separation and mechanical decoupling between the transmitter and receiver to improve detection. These measures can be further improved with correction characteristic methods.

The invention relates to a sensor with a transducer unit, which is located at a measurement end in a housing sleeve, with connection means at a connection end of the housing sleeve opposite to the measurement end, with a module carrier received in the housing sleeve and on which is placed a sensor electronics and which extends along an axis of the housing sleeve, with illuminants for the optical signaling to the outside of operating and/or switching states of the sensor. The sensor is characterized in that there is a separate, plate-like illuminant carrier, that a plurality of illuminants are placed on the illuminant carrier and that the illuminant carrier is positioned transversely to the module carrier in the vicinity of the transducer unit. The invention also relates to a method for the manufacture of a sensor.

Sensor and method for its manufacture

The present invention relates to a method for the manufacture of a transducer unit for an angular switching device, in which a transducer element is inserted and fixed in an angled bush. The inventive method is characterized in that the transducer element is brought into aligned engagement with a transducer receptacle formed in a tool, that subsequently for the precise positioning with respect to the transducer element the bush is brought into an aligned, at least partial positive engagement with a bush receptacle appropriately constructed in the tool and that for completing the transducer unit the transducer element is fixed in the bush. In further aspects the invention relates to an angular transducer unit, an angular switching device and an object detection device.

Angular transducer unit and method for its manufacture, as well as angular switching device and device for the detection of objects

The invention relates to a device for the optical display of n switching states of a switching device or sensor, with a plurality of differently coloured lighting devices for the optical display of the information to be transmitted and each lighting device has at least one lighting element. The device is characterized in that, for receiving the lighting elements, a transparent casing part is provided that for avoiding optical cross-talk, particularly in the case of simultaneously active lighting elements, the transparent casing part is subdivided into segments by optical interfaces and in which the lighting elements are received, and that the transparent casing part with the segments and lighting devices is so constructed and positioned that the lighting devices are visible to a user from any azimuth angle within a polar angle range.

Device for the optical display of n switching states

A method and device for the contactless detection of flat objects, particularly in sheet form, such as paper, films, foils, plates, labels, splices, break points, tear-off threads and similar flat materials or packs. A sensor device, such as a receiver-following evaluating device, is supplied with at least one correction characteristic, by means of which a measuring signal input voltage characteristic in the receiver is simulated as a function of the gram weight or weight per unit area of the flat objects as a target characteristic in such a way that there is obtained a linear or almost linear dependence or a characteristic approximated to the ideal single sheet detection characteristic in the form of a target characteristic.

Method and device for the contactless detection of flat objects

A method and device for the contactless detection of flat objects, particularly in sheet form, such as paper, films, foils, plates, and similar flat materials or packs. At least one correction characteristic is supplied to an evaluating device downstream of a sensor device, specifically a receiver, by means of which the characteristic of an input voltage of a measuring signal in the receiver is so simulated as a function of the gram weight or weight per unit area of flat objects as a target characteristic that there is a linear or almost linear dependence or a characteristic approximated to the ideal characteristic for single sheet detection in the form of a target characteristic.

The invention relates to a method for the manufacture of a switching device with a sensor unit located at a measurement end of a casing sleeve and connected to an electronic circuit located on a support received in the casing sleeve, and with a connection part located at a rear end of the casing sleeve. The method is characterized in that the sensor unit, support and connection part together with a shielding sleeve surrounding the support are assembled to form a dimensionally stable module and the latter is subsequently inserted in the casing sleeve, where it is received in fixing manner. According to a further aspect, the invention relates to a module for a switching device.

Method for the manufacture of a switching device and module for a switching device

The invention relates to a method and a device for the contactless detection of flat objects, particularly in sheet form, such as paper, films, foils, plates and similar flat materials or packs. In said methods and devices, e.g. in the printing industry there is a need for bringing about a reliable, precise detection of single, missing or multiple sheets, particularly double sheets of the flat objects. For this purpose the invention provides a very flexible solution usable over a very wide gram weight or weight per unit area range, in that at least one correction characteristic is supplied to the evaluating device downstream of the sensor device, specifically the receiver, by means of which the characteristic of the input voltage of the measuring signal in the receiver is so simulated as a function of the gram weight or weight per unit area of the flat objects as a target characteristic that there is a linear or almost linear dependence or a characteristic approximated to the ideal characteristic for single sheet detection in the form of a target characteristic. For increasing detection reliability and for further extending the material spectrum compared with a correction characteristic method-based sensor, it is also possible to combine sensors and sensor devices.

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Egelsbach, Germany

Dierk Schoen