Abstract: A device (10) for detecting electrically conducting objects to be measured in a ground is provided, including a housing (21), a solenoid unit (34) situated in the housing (21), which includes a transmitter coil unit (38) and a receiver coil unit (39), a control unit (36), and an evaluation unit (37). A metal sheet (35) is provided in the housing (21), the solenoid unit (34) being situated on a lower side (53) of the metal sheet (35) facing the ground during the measuring operation, and the control unit (36) being situated on an upper side (54) of the metal sheet (35) facing away from the ground during the measuring operation.

Abstract: A device (10) for detecting electrically conducting objects to be measured in a ground is provided, including a housing (21), a solenoid unit (34) situated in the housing (21), which includes a transmitter coil unit (38) and a receiver coil unit (39), a control unit (36), and an evaluation unit (37). A metal sheet (35) is provided in the housing (21), the solenoid unit (34) being situated on a lower side (53) of the metal sheet (35) facing the ground during the measuring operation, and the control unit (36) being situated on an upper side (54) of the metal sheet (35) facing away from the ground during the measuring operation.

Abstract: A method for examining object properties of an object in a substrate, using an arrangement that comprises a detector device, a localization device, and a control device is provided. The method includes selecting a first object having first object properties to be examined and first target coordinates and also includes determining an actual position of the detector device using the localization device. Moreover, the method includes determining by the control device an actual detection field from the actual position of the detector device, and comparing by the control device the first target coordinates with the actual detection field of the detector device.

Abstract: A method for detecting a measurement region in a substrate, using an arrangement that includes a detector device having a detection field, a localization device, and a control device, is provided. The method includes selecting a measurement region to be detected, which has a start position and coordinates. The dimension of the measurement region to be detected is greater than the detection field of the detector device. The method also includes determining using the localization device an actual position of the detector device, and further determining by the control device an actual detection field from the actual position of the detector device. Moreover, the method includes comparing by the control device the start position of the measurement region to be detected with the actual detection field.

Abstract: A method for examining object properties of an object in a substrate, using an arrangement that comprises a detector device, a localization device, and a control device is provided. The method includes selecting a first object having first object properties to be examined and first target coordinates and also includes determining an actual position of the detector device using the localization device. Moreover, the method includes determining by the control device an actual detection field from the actual position of the detector device, and comparing by the control device the first target coordinates with the actual detection field of the detector device.

Abstract: A method and device for detecting an object in a substrate is disclosed. The device has a sensor unit having a sensor element and at least one further sensor element, a control and evaluation unit, and a display unit. The method for detecting an object in a substrate includes simultaneous reception of a receive signal and at least one further receive signal and simultaneous calculation of a depth cross-sectional image from the receive signal and at least one further depth cross-sectional image from the at least one further receive signal by the control and evaluation unit.

Abstract: A method for detecting an electrically and/or magnetically conductive object in a vicinity of a sensor head of a device, having the following steps: emitting a transmitting signal into the surroundings, receiving a received signal as a function of the transmitting signal and the characteristics of the object and the surroundings, analyzing a response signal formed from the received signal. According to the invention, the detection is controlled by providing a class system having a number of classes, which differ from one another in at least one object and/or surroundings characteristic, and classifying instantaneous object and/or surroundings characteristics as a function of the analyzed response signal in a class of the class system, and predefining detection characteristics which are preset in the classified class, a further response signal being detected using the predefined detection characteristics.

Abstract: A device for detecting an object in a subsurface, including a transmitting unit having a transmitting element which is designed to emit a transmission signal into the subsurface, a receiving unit having two or more receiving elements which are designed to receive a reception signal which is a function of the transmission signal and the properties of the object and of the subsurface, a control and evaluation unit which is designed to control the transmitting unit and receiving unit and to evaluate the reception signals, and a display unit which is designed to display the reception signals evaluated by the control and evaluation unit. The transmitting unit has at least one further transmitting element which is designed to emit at least one further transmission signal into the subsurface, and the transmitting elements of the transmitting unit are controllable independently of one another by the control and evaluation unit. A method is also provided.

Abstract: A device for detecting an object in a subsurface, including a transmitting unit having a transmitting element designed to emit a transmission signal into the subsurface, a receiving unit having two or more receiving elements designed to receive a reception signal which is a function of the transmission signal and the properties of the object and of the subsurface, a control and evaluation unit which is designed to control the transmitting unit and receiving unit and to evaluate the reception signals, and a display unit which is designed to display the reception signals evaluated by the control and evaluation unit. The transmitting unit has at least one further transmitting element which is designed to emit at least one further transmission signal into the subsurface, and the transmitting elements of the transmitting unit are controllable independently of one another by the control and evaluation unit. A method is also provided.

Abstract: A method and device for detecting an object in a substrate is disclosed. The device has a sensor unit having a sensor element and at least one further sensor element, a control and evaluation unit, and a display unit. The method for detecting an object in a substrate includes simultaneous reception of a receive signal and at least one further receive signal and simultaneous calculation of a depth cross-sectional image from the receive signal and at least one further depth cross-sectional image from the at least one further receive signal by the control and evaluation unit.

Abstract: A method for detecting an electrically and/or magnetically conductive object in a vicinity of a sensor head of a device, having the following steps: emitting a transmitting signal into the surroundings, receiving a received signal as a function of the transmitting signal and the characteristics of the object and the surroundings, analyzing a response signal formed from the received signal. According to the invention, the detection is controlled by providing a class system having a number of classes, which differ from one another in at least one object and/or surroundings characteristic, and classifying instantaneous object and/or surroundings characteristics as a function of the analyzed response signal in a class of the class system, and predefining detection characteristics which are preset in the classified class, a further response signal being detected using the predefined detection characteristics.

Abstract: A device for detecting an underground power line includes, for example, a sensor unit that has a magnetic field sensor element that is configured for receiving a received signal depending on the features of the power line and the underground, a control and evaluation unit configured for controlling the sensor unit and for evaluating the received signal, and a display unit for displaying the received signal evaluated by the control and evaluation unit. The sensor unit includes, for example, at least one additional magnetic field sensor element configured to receive a received signal depending on the features of the power line and the underground, wherein the magnetic field sensor elements can be independently controlled by the control and evaluation unit.

Abstract: A device for detecting an object in a subsurface, including a transmitting unit having a transmitting element designed to emit a transmission signal into the subsurface, a receiving unit having two or more receiving elements designed to receive a reception signal which is a function of the transmission signal and the properties of the object and of the subsurface, a control and evaluation unit which is designed to control the transmitting unit and receiving unit and to evaluate the reception signals, and a display unit which is designed to display the reception signals evaluated by the control and evaluation unit. The transmitting unit has at least one further transmitting element which is designed to emit at least one further transmission signal into the subsurface, and the transmitting elements of the transmitting unit are controllable independently of one another by the control and evaluation unit. A method is also provided.

Abstract: A method for detecting a-condition, where the signal level of an information signal, particularly of an orthogonal frequency division multiplexed (OFDM) digital information signal, exceeds at least one upper predetermined signal level and/or underruns at least one lower predetermined signal level for at least a predetermined time interval by feeding the information signal to at least one first mixer unit for producing a first signal and comparing said first signal to a at least a first level threshold value. Counting the number of incidences per time unit where said first signal is above or below said first level threshold value and comparing said number of incidences per time unit to a first frequency threshold value allows determination, if the condition is met or not.

Abstract: The invention relates to a repeater and a method for re-transmitting single frequency signals, in particular of the type used in single frequency signal repeaters for use in single frequency networks (SFNs) like digital video/audio broadcasting (DVB/DAB) networks. The estimation of echo feedback is derived from the measured power density spectrum with an inclusion of a variable phase shifter (57) in the signal path. Preferably, the phase shifter (57) is controlled by control means (56), which also set the adaptive filter (54) for feedback compensation, such that a signal coupled from the transmitter antenna back to the receiver antenna can substantially be cancelled out. The method according to the invention exhibits quick and stable regulation behavior and the re-transmitted signal does not suffer from degradation due to added interference. The quality of the signal at the transmitter antenna is improved even if dynamically changing feedback paths from the transmitter to the receiver antenna exist.