Abstract: A device for exchanging a public key in the course of a firmware update in a level sensor, the device including signing circuitry that generates a manifest comprising a public key and to sign the public key stored in the manifest, and updating circuitry that replaces a pre-installed public key of a previous manifest in the level-measuring device with the signed public key.

Abstract: A superabrasive element includes a substrate and a superabrasive table bonded to the substrate, the superabrasive table including a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table, and an unpolished surface including an unpolished finish, the unpolished surface surrounding a majority of the polished surface. A method of manufacturing a superabrasive element includes providing a superabrasive element having a substrate and a superabrasive table bonded to the substrate and polishing at least a central, apical region of the superabrasive table to form a polished surface, without polishing an unpolished surface of the superabrasive table, the unpolished surface surrounding a majority of the polished surface.

Abstract: A superabrasive element includes a substrate and a superabrasive table bonded to the substrate, the superabrasive table including a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table, and an unpolished surface including an unpolished finish, the unpolished surface surrounding a majority of the polished surface. A method of manufacturing a superabrasive element includes providing a superabrasive element having a substrate and a superabrasive table bonded to the substrate and polishing at least a central, apical region of the superabrasive table to form a polished surface, without polishing an unpolished surface of the superabrasive table, the unpolished surface surrounding a majority of the polished surface.

Abstract: A superabrasive element includes a substrate and a superabrasive table bonded to the substrate, the superabrasive table including a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table, and an unpolished surface including an unpolished finish, the unpolished surface surrounding a majority of the polished surface. A method of manufacturing a superabrasive element includes providing a superabrasive element having a substrate and a superabrasive table bonded to the substrate and polishing at least a central, apical region of the superabrasive table to form a polished surface, without polishing an unpolished surface of the superabrasive table, the unpolished surface surrounding a majority of the polished surface.

Abstract: A superabrasive element includes a substrate and a superabrasive table bonded to the substrate, the superabrasive table including a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table, and an unpolished surface including an unpolished finish, the unpolished surface surrounding a majority of the polished surface. A method of manufacturing a superabrasive element includes providing a superabrasive element having a substrate and a superabrasive table bonded to the substrate and polishing at least a central, apical region of the superabrasive table to form a polished surface, without polishing an unpolished surface of the superabrasive table, the unpolished surface surrounding a majority of the polished surface.

Abstract: A superabrasive element includes a substrate and a superabrasive table bonded to the substrate, the superabrasive table including a polished surface having a polished finish, the polished surface extending over at least a central, apical region of the superabrasive table, and an unpolished surface including an unpolished finish, the unpolished surface surrounding a majority of the polished surface. A method of manufacturing a superabrasive element includes providing a superabrasive element having a substrate and a superabrasive table bonded to the substrate and polishing at least a central, apical region of the superabrasive table to form a polished surface, without polishing an unpolished surface of the superabrasive table, the unpolished surface surrounding a majority of the polished surface.

Abstract: An apparatus for teaching a gripping device is disclosed. The gripping device includes an arm. The arm has a free end that can be freely moved in an operating region and includes a gripper. The gripper includes at least one, preferably two pairs of spaced apart gripping tongs consisting of an electrically conductive material. A control unit is included electrically connected to the tongs or a measuring body. A detecting means detects current in a control line. The apparatus uses a reference component having three reference surfaces to determine a reference coordinate system. By pre-specifying several points on the reference component that are to be approached, an automated determination of the position and alignment of a chuck or pallet can be utilized. A highly accurate analysis of a current signal is used by the apparatus for teaching the gripping device.

Abstract: A method for operating a gripping device (10) is provided. This method is used for positioning blanks (18) in a working position for the placement of said blanks in a clamping chuck (35). For this, a deviation function (F) is determined at the time of initialization of the gripping device (10), said deviation function stating only—for the working position—the load-dependent deviation of the position of the blank (18) from its desired nominal position relative to the position measured in the gripping device. During operation, while the gripping device (10) is positioning the blank (18) in the working position, it is possible to determine a deviation value (?za) with the use of the deviation function (F) and to correct the position measured in the gripping device (10) with the deviation value (?za), so that an accurate positioning of the blank (18) is possible.

Abstract: An apparatus for teaching a gripping device is disclosed. The gripping device includes an arm. The arm has a free end that can be freely moved in an operating region and includes a gripper. The gripper includes at least one, preferably two pairs of spaced apart gripping tongs consisting of an electrically conductive material. A control unit is included electrically connected to the tongs or a measuring body. A detecting means detects current in a control line. The apparatus uses a reference component having three reference surfaces to determine a reference coordinate system. By pre-specifying several points on the reference component that are to be approached, an automated determination of the position and alignment of a chuck or pallet can be utilized. A highly accurate analysis of a current signal is used by the apparatus for teaching the gripping device.

Abstract: A sensor positioned between a heat source and a heating area in parallel relationship to the heating area, for determining a mean value of the temperature of the heating area, includes a ceramic element, and a temperature-dependent resistor web attached to the ceramic element and confronting the heating area at a distance thereto. The resistor web has a length of at least 200 mm, and is electrically contacted at a contact point outside a region in which the temperature is to be ascertained.

Abstract: A sensor positioned between a heat source and a heating area in parallel relationship to the heating area, for determining a mean value of the temperature of the heating area, includes a ceramic element, and a temperature-dependent resistor web attached to the ceramic element and confronting the heating area at a distance thereto. The resistor web has a length of at least 200 mm, and is electrically contacted at a contact point outside a region in which the temperature is to be ascertained.