Abstract: A measuring device (1) for detecting signals, particularly signals in an ignition system of an internal combustion engine, has a signal line (2); and a measuring electrode (3) connected to the signal line (2) for coupling a signal to be detected into the signal line (2), wherein the measuring electrode has a flexible tip (4) , wherein the tip (4) includes tubular segments (4?); wherein one end of a segment (4?) is pivotably inserted into another end of another segment (4?); and wherein the tip (4) including the tubular segments (4?) is lockable into position in a bent state.

Abstract: The invention relates to a measuring device (1) for detecting signals, particularly signals in an ignition system of an internal combustion engine, with a signal line (2) and a measuring electrode (3) connected to the signal line (2) for coupling a signal to be detected into the signal line (2). In order to simplify the detection of signals in inaccessible areas, the measuring device (1) has a flexible tip (4).

Abstract: The present invention relates to an ignition coil tester having a control module and an output electronics for testing the functioning of rod-type ignition coils, which is connectible to a diagnostic tester, the rod-type ignition coil having a primary winding and a secondary winding for generating the ignition voltage as well as a field guide plate, a plug connector and a secondary output. To be able to perform a component test on a rod-type ignition coil uninstalled from an internal combustion engine, the present invention provides for the ignition coil tester to have a housing and a spark plug dome for receiving the rod-type ignition coil, the dimensions and shape of which essentially correspond to those of a spark plug dome in an internal combustion engine and/or are adjustable to the dimensions of the latter.

Abstract: The present invention relates to an ignition coil tester having a control module and an output electronics for testing the functioning of rod-type ignition coils, which is connectible to a diagnostic tester, the rod-type ignition coil having a primary winding and a secondary winding for generating the ignition voltage as well as a field guide plate, a plug connector and a secondary output. To be able to perform a component test on a rod-type ignition coil uninstalled from an internal combustion engine, the present invention provides for the ignition coil tester to have a housing and a spark plug dome for receiving the rod-type ignition coil, the dimensions and shape of which essentially correspond to those of a spark plug dome in an internal combustion engine and/or are adjustable to the dimensions of the latter.

Abstract: A device is provided for detecting high-voltage characteristics in an ignition system having at least two ignition coils. The device includes a plurality of first capacitive signal couplers each being disposed on a respective one of the ignition coils for capacitively extracting a voltage signal from the ignition coil. A circuit arrangement is connected to the plurality of first capacitive signal couplers and includes an output, and a signal combiner for combining the voltage signals extracted from the ignition coils and producing a combined voltage signal at the output. A plurality of second capacitive signal couplers each connected between the signal combiner and a respective one of the first capacitive signal coupler provides for potential isolation between the plurality of first capacitive signal couplers and a further portion of the circuit arrangement.

Abstract: The ignition device of an internal combustion engine has at least one ignition coil in an ignition coil assembly and a secondary side device for ignition testing by detection of a secondary voltage signal from a secondary side from the ignition coils. The device for detecting the secondary voltage signals includes a standard measuring point device (13) at the outer periphery (P) of each ignition coil assembly, comprising advantageously a capacitive electrode, for capacitive read out of the secondary voltage signal from the secondary side of each of the ignition coils (1) in each of the ignition coil assemblies. A conductor (12) is connected electrically with the measuring point device (13) and capacitively to another conductor (8) connected to the secondary side of the ignition coil to transmit the secondary voltage signal from the secondary coil of each ignition coil (1) to the measuring point device (13).