sensor-tilt-switch-dat
mercury type tilt switch sensor
Reed Tilt Switch Sensor
Structure
✅ Described Structure
- Two metal reed springs (contact pieces) placed close together inside a glass tube → This is a standard Reed-type tilt switch
- Operating principle:
- When tilted to a certain angle, the two metal reed springs move closer or separate
- This creates a closed or open circuit
Usually a small amount of conductive liquid or metal particles is added inside, but this one appears to be the simplest dual metal reed contact design.
Working Principle (Without Ball Bearings)
✅ How Reed Switch Works
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Basic principle:
- Two nickel-iron metal strips sealed inside a glass tube
- Angle change → Natural micro-displacement of the reeds → Contact or separation
- Used for tilt detection
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Characteristics:
- Extremely simple design
- Ultra-low cost tilt angle sensor
Ball Tilt Switch Sensor
Structure
Distinctive Characteristics:
- Transparent glass tube
- Metal pins extending from both ends
- Contains a metal ball or metal column inside
- When tilted to a certain angle, the ball rolls to close or open the contact
Working Principle
📌 How It Works
When the switch is tilted beyond a certain angle (typically 10° ~ 45°), the internal metal ball will:
- Contact both electrodes → Circuit closes (conducts)
- Leave the electrodes → Circuit opens (no contact)
This is the simplest angle detection switch design.
Applications
📌 Common Uses:
- Anti-tipping devices
- Night light sensors
- Remote control toys
- Battery protection devices
- Alarm systems
Important Notes
❗️ Mercury vs. Ball Switch
- If the interior contains silver liquid (resembling mercury), it would be an early mercury switch
- However, the image shown here appears to be a ball-type switch, not a mercury switch