Vibration Switch: Does It Return to Normally Open?

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SUMMARY

The discussion centers on the functionality of vibration switches in applications such as bike alarms. It confirms that vibration switches are more sensitive than tilt switches and emphasizes that once triggered, they do not automatically return to their "normally open" status. Instead, the use of relays, which have normally open and normally closed contacts, allows for the activation of a circuit while ignoring the switch's status. Additionally, solid-state components can replace relays for those with electronics knowledge, and microphones can serve as alternative vibration sensors.

PREREQUISITES
  • Understanding of vibration switch functionality
  • Knowledge of relay circuits and their operation
  • Familiarity with solid-state components
  • Basic electronics design principles
NEXT STEPS
  • Research the specifications of various vibration switches available on the market
  • Learn about relay types and their applications in circuit design
  • Explore solid-state alternatives to traditional relays
  • Investigate the use of microphones as vibration sensors in electronic projects
USEFUL FOR

Electronics enthusiasts, alarm system designers, and anyone involved in creating or improving sensor-based triggering mechanisms.

Gughanath
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Say a vibration switch is used as a trigger in a bike alarm. I know it will be more sensitive than a tilt switch, but once the vibration switch has been triggered, does it return to its "normally open" status simultaneously?
 
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It’s probably safe to assume that there is an “off the shelf” device to suit your needs. If not, the switch can be used to activate a relay. Relays have normally “open” contacts and normally “closed “ contacts. Once a relay is activated the status of the switch can be ignored. In other words, using one or more relays, a simple logic circuit can be used to achieve your needs. If you have some knowledge of electronics, solid state components can be used in place of the relays.
 
One thing that can be used as a vibration sensor is a microphone.
Turning it into a switch is the design challenge.

Other than that it's time to do a product search and read specs.
 

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