FIELD: electrical engineering.
SUBSTANCE: invention relates to a measurement device, comprising the following components: radio frequency ignition power supply circuit (2) containing a transformer (T) the secondary winding whereof (LN) is connected to at least of resonator (1) having resonance frequency in excess of 1 MHz and containing two electrodes (11, 12) designed so that to enable spark generation when an ignition command is given; measuring capacitor (Cmesure) placed in series between the secondary winding and the resonator; circuit (DIFF) for measurement of current (Iion) of gases ionisation during burning inside a cylinder of the internal-combustion engine linked to the resonator. The said measurement circuit is connected to the measuring capacitor contacts and/or - circuit (RED) for measurement of voltage (Vout) on the resonator electrodes contacts when an ignition command is given. The circuit is connected to the measuring capacitor contacts.
EFFECT: possibility of simultaneous measurement of ionisation current and voltage.
8 cl, 4 dwg
