Augmentation heater temperature control system

Details Augmentation heater temperature control system Augmentation heater temperature control system

1984-09-28

1987-04-14

Casaregola, Louis J.

Power plants

Reaction motor

Electric, nuclear, or radiated energy fluid heating means

60 39462, 219497, F02K 900

Patent

active

046568280

ABSTRACT:
A control system to maintain a given temperature at a thruster heater resistance element coupled to a battery bus is provided by periodically disconnecting the main power to the resistance element and applying a sampling current to the resistance element to provide a voltage corresponding to the sensed resistance. The voltage representing the sensed resistance value is stored and compared with a reference voltage indicative of a given temperature. Power to the resistance element is disconnected when the sensed voltage exceeds the reference and reconnected when sensed voltage is below the reference.

REFERENCES:
patent: 3700933 (1972-10-01), Harkenrider et al.
patent: 3745308 (1973-07-01), Lefferts
patent: 3789190 (1974-01-01), Orosy et al.
patent: 3959692 (1976-05-01), Wetzel
patent: 4169351 (1979-10-01), Barber
patent: 4322946 (1982-04-01), Murch et al.

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