发明名称 |
DATA COLLECTION CIRCUIT FOR COMPUTERIZED TOMOGRAPH SYSTEM |
摘要 |
A digital acquisition system for use in a computerized radiation tomography system employs track and hold means associated with each channel of the radiation detector in the tomography system. Each channel of the radiation detector is connected to a voltage follower transistor and resistor. A signal from the voltage follower transistor and resistor is applied through a Butterworth filter and amplifier to a transconductance amplifier which provides a signal for application to a charge storage capacitor. The capacitor is connected to the detector channel except during each limited period of time when the charge is held for measurement and conversion to a digital form. The data acquisition system has fewer components, and the simplicity of the circuitry increases the circuit reliability. |
申请公布号 |
JPS6075972(A) |
申请公布日期 |
1985.04.30 |
申请号 |
JP19840166623 |
申请日期 |
1984.08.10 |
申请人 |
GENERAL ELECTRIC CO |
发明人 |
RONARUDO ARAN GATEN;PEETAA IBANOBITSUCHI GURANCHIYUKOFU |
分类号 |
G06F3/05;A61B6/03;G06F17/40;G06T1/00 |
主分类号 |
G06F3/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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