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Circuit Diagram

A seismic detector utilizing a kitchen gas lighter’s piezoelectric component is demonstrated in this straightforward design. The piezoelectric element needs to be positioned upright, with one end firmly connected to the earth. A 2-3 pound mass of granular material, contained within a permeable package, should be positioned above the other end. The elevated voltage signal is directed towards the integrated circuit, which is situated in proximity to the piezoelectric element. The entire enclosure is shielded against acoustic and electromagnetic interference. A 3-core shielded cable transmits the signal to the remaining portions of the circuit and to the power source (+/- 15V). Schottky type SB140 diodes are employed, with pin 8 (substrate) of the integrated circuit linked to ground.

Integrated Circuit Description

The integrated circuit used in this schematic is an SB140. This is a Schottky diode, a type of diode characterized by its low forward voltage drop and fast switching speed. Schottky diodes are typically employed in applications demanding high-speed switching and low voltage drop, such as in rectifiers, signal demodulation, and transient protection circuits. The SB140 diode’s substrate pin (pin 8) is connected to ground to complete the circuit and manage reverse current flow.

The piezoelectric element of a kitchen gas lighter is used in this simple, yet effective seismic detector. The piezo element must be placed vertically, one end solidly to ground. A 2-3 pound weight of fine gravel in a loose package should be placed on top at the other end. The high voltage lead goes to the integrated circuit, placed close to the piezo element. The whole box is acoustically and electromagnetically screened. A 3-core shielded cable brings the signal to the rest of the circuit and to the power supply (+/- 15V).

The piezoelectric element of a kitchen gas lighter is used in this simple, yet effective seismic detector. The piezo element must be placed vertically, one end solidly to ground. A 2-3 pound weight of fine gravel in a loose package should be placed on top at the other end. The high voltage lead goes to the integrated circuit, placed close to the piezo element. The whole box is acoustically and electromagnetically screened. A 3-core shielded cable brings the signal to the rest of the circuit and to the power supply (+/- 15V).

The piezoelectric element of a kitchen gas lighter is used in this simple, yet effective seismic detector. The piezo element must be placed vertically, one end solidly to ground. A 2-3 pound weight of fine gravel in a loose package should be placed on top at the other end. The high voltage lead goes to the integrated circuit, placed close to the piezo element. The whole box is acoustically and electromagnetically screened. A 3-core shielded cable brings the signal to the rest of the circuit and to the power supply (+/- 15V).

The piezoelectric element of a kitchen gas lighter is used in this simple, yet effective seismic detector. The piezo element must be placed vertically, one end solidly to ground. A 2-3 pound weight of fine gravel in a loose package should be placed on top at the other end. The high voltage lead goes to the integrated circuit, placed close to the piezo element. The whole box is acoustically and electromagnetically screened. A 3-core shielded cable brings the signal to the rest of the circuit and to the power supply (+/- 15V).

The piezoelectric element of a kitchen gas lighter is used in this simple, yet effective seismic detector. The piezo element must be placed vertically, one end solidly to ground. A 2-3 pound weight of fine gravel in a loose package should be placed on top at the other end. The high voltage lead goes to the integrated circuit, placed close to the piezo element. The whole box is acoustically and electromagnetically screened. A 3-core shielded cable brings the signal to the rest of the circuit and to the power supply (+/- 15V).

The piezoelectric element of a kitchen gas lighter is used in this simple, yet effective seismic detector. The piezo element must be placed vertically, one end solidly to ground. A 2-3 pound weight of fine gravel in a loose package should be placed on top at the other end. The high voltage lead goes to the integrated circuit, placed close to the piezo element. The whole box is acoustically and electromagnetically screened. A 3-core shielded cable brings the signal to the rest of the circuit and to the power supply (+/- 15V).