Circuit arrangement for measuring the X-ray tube current

Details Circuit arrangement for measuring the X-ray tube current Circuit arrangement for measuring the X-ray tube current

1993-07-01

1994-07-26

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378110, 378101, H05G 120

Patent

active

053331699

ABSTRACT:
A circuit arrangement for accurately measuring the x-ray tube current substantially eliminates measurement errors by taking the displacement current caused by the capacitance of the high-voltage cable into account in the measurement. A test voltage is taken across a precision resistor. Another voltage is tapped at a location which includes the high-voltage cable capacitance and is supplied to a status monitor which differentiates this voltage and generates a voltage signal which is superimposed on the test voltage for forming a current signal which accurately represents the x-ray tube current.

REFERENCES:
patent: 4670893 (1987-06-01), Tsuchiya
patent: 5200984 (1993-04-01), Laeuffer

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