Apparatus for distance control

摘要: The distance between a cutting torch and work piece varies the oscillating frequency of electrical control circuit. This is converted by discriminator into direct current signals, which are utilized to correct deviations hold at substantially constant from piece. As moves away piece, bandwidth widened, such as damping or untuning tuning A field-effect transistor suitable for use resistor, capacitor-diode unit may be used untune voltage conveniently tapped output an amplifier connected discriminator, input provided variable resistor capacitor. changing range obtained analog signal component regulator output.