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US 2004/0164647 A1Published application
Piezoelectric transducer circuit with improved shock recovery
OwnerEric Scott Mickoinventor
Life of this patent
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Abstract
A resistor is placed in series between a piezoelectric transducer and its buffer/amplifier circuit to limit transient-induced current flows through the circuit.
Claims27
A piezoelectric detector, comprising:
- a piezoelectric transducer;
- an amplifier circuit electrically connected to the piezoelectric transducer;
- and
- a resistor in electrical series between the piezoelectric transducer and the amplifier circuit to limit transient-induced current flows through the circuit.
1 more element
In a detector circuit including a piezoelectric transducer and a monitoring circuit, at least one resistor in series between the piezoelectric transducer and the monitoring circuit, the resistor having a resistance established to cause negligible error in a measurement signal output by the monitoring circuit at least during non-stress events but limiting current flow during transient stress events.
A circuit, comprising:
- at least one piezoelectric transducer;
- at least one amplifier circuit receiving, along an electrical path, a signal from the transducer and processing the signal to produce an output;
- and
- at least one resistor in the electrical path, the circuit being configured such that the signal from the transducer must pass through the resistor prior to being received by the amplifier circuit.
1 more element
Dependencies are inferred from the claim text.