Artikel
Seismograph
Loudspeaker as vibration sensor
Big earthquakes are rare events, but every now and then we are startled by small shocks that (luckily!) do not usually have any serious consequences. With the circuit described here and a PC you can very easily keep an eye on all earthquakes.
Material
Gerber-Datei
Die zu diesem Projekt gehörende Platine steht als Gerber-Datei exklusiv allen GOLD- und GREEN-Mitgliedern zum sofortigen Download zur Verfügung. Mit Gerber-Daten können Sie Platinen selber herstellen oder sie bei einem Platinenhersteller in Auftrag geben.
Elektor empfiehlt den zuverlässigen PCB-Service von Eurocircuits oder von AISLER.
Gerber-Dateien unterliegen der Creative Commons-Lizenz. Creative Commons bietet Urhebern die Möglichkeit, dass ihre Werke frei genutzt und verbreitet werden.
Platine
Stückliste
Resistors
R1,R6 = 1MΩ
R2,R5 = 100kΩ
R3,R13 = 22kΩ
R4 = 220kΩ
R7,R12 = 4MΩ7
R8 = 15kΩ
R9,R11 = 47kΩ
R10 = 10kΩ
Capacitors
C1,C14 = 10µF 25V radial
C2,C12,C13 = 220 µF 25V radial
C3 = 2F2
C4 = 15nF
C5 = 220nF
C6 = 4F7
C7,C8 = 22pF
C9,C16 = 1nF
C10 = 470nF
C11,C15 = 4F7 25V radial
C17-C21 = 100nF
Semiconductors
D1,D2 = 1N4148
IC1 = LP2950CZ-5.0
IC2 = MAX7400CPA
IC3 = ATtiny45 (programmed, order code 060307-41)
IC4 = TL081ACN
IC5 = TL082CN
IC6 = LT1175CN8-5
Miscellaneous
K1 = 9-way sub-D socket (female), PCB mount
X1 = 4MHz quartz crystal
PCB, ref. 060307-1 from www.thePCBShop.com
R1,R6 = 1MΩ
R2,R5 = 100kΩ
R3,R13 = 22kΩ
R4 = 220kΩ
R7,R12 = 4MΩ7
R8 = 15kΩ
R9,R11 = 47kΩ
R10 = 10kΩ
Capacitors
C1,C14 = 10µF 25V radial
C2,C12,C13 = 220 µF 25V radial
C3 = 2F2
C4 = 15nF
C5 = 220nF
C6 = 4F7
C7,C8 = 22pF
C9,C16 = 1nF
C10 = 470nF
C11,C15 = 4F7 25V radial
C17-C21 = 100nF
Semiconductors
D1,D2 = 1N4148
IC1 = LP2950CZ-5.0
IC2 = MAX7400CPA
IC3 = ATtiny45 (programmed, order code 060307-41)
IC4 = TL081ACN
IC5 = TL082CN
IC6 = LT1175CN8-5
Miscellaneous
K1 = 9-way sub-D socket (female), PCB mount
X1 = 4MHz quartz crystal
PCB, ref. 060307-1 from www.thePCBShop.com
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