| 摘要 |
An apparatus for evaluating data representing the electrical characteristics of a combustion vessel, the combustion vessel being operable to combust a fuel. The apparatus includes a matrix of nodes 132 arranged on an ohmic material of the combustion vessel, a wire 116A, 116B, 118A, 118B, connected to each respective node 132 and a switch SW1, SW2 connected to each wire and to a current source. A circuit 110A, 110B for reducing leakage currents uses an added series element, optimally a diode D1, and feedback control of the voltage across the diode to a set point of zero volts to effectively reduce the off-state leakage current of each switch SW1, SW2.
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