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Patent
Title
Sensorschaltung
Other Title
Sensor circuit, especially for high impedance sensor, has signal processing device output connected to amplifier output and second non-linear amplifier element input to compensate for non-linearities.
Abstract
Eine Sensorschaltung hat einen Sensor, dessen Spannungsausgangssignal durch ein erstes nicht-lineares Verstaerkerelement in einen Stromausgang umgeformt wird, mit dem eine Signaluebertragungseinrichtung beaufschlagt wird. Am anderen Ende der Signaluebertragungseinrichtung ist eine aus einem zweiten nicht-linearen Verstaerkungselement und einem Strom-Spannungs-Verstaerker gebildete Signalverarbeitungseinrichtung.
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WO2004001959 A UPAB: 20040202 NOVELTY - The circuit has a sensor (S) with a voltage output signal, a first non-linear amplifier element, a signal transmission device (B) and a signal processing device with a second non-linear amplifier element and an amplifier. A signal processing device output is connected to an amplifier output and to an input of the second non-linear amplifier element so that the non-linearities of the first and second non-linear amplifier elements are compensated. USE - Especially for tapping a signal from a high impedance sensor, e.g. an electronic image sensor. ADVANTAGE - The potential drop when transferring a signal between the sensor and a signal processing circuit does not cause an error in the detected output signal.
Inventor(s)
Ernst, R.
Link to:
Patent Number
2002-10227622
Publication Date
2005
Language
German