APPLICATIONS

Automobiles

Automobiles

Seat belt

Seat belt

A magnet keeps the contact normally ON. When a metal fitting is placed between the reed switch and magnet, the magnetic field is interrupted and the contact goes OFF.

Detection method
Position detection

Air Bags

Air Bags

Detects impact during a collision by magnet movement.

Detection method
Shock detection

Home electronics

Home electronics

Security Sensor

Security Sensor

Sensor detects movement of magnet due to opening/closing of windows and doors.

Detection method
Position detection

Gas Meter

Gas Meter

In a gas flow rate sensor, a proximity switch is turned ON/OFF by the movement of a magnet in the flow rate detection section. The reset button turns the proximity switch ON/OFF using the magnet when the button is operated.

Detection method
Rotation detection

Health and leisure equipment

Exercise Machines

Exercise Machines

Sensor detects number of tire rotations.

Detection method
Rotation detection

Pedometer

Pedometer

Detects oscillating motion when walking, based on magnet movement.

Detection method
Oscillating motion detection

Pachinko (Japanese Pinball) Machines

Pachinko (Japanese Pinball) Machines

A magnet keeps the contact normally ON. When a pachinko ball (which is a magnetic body) passes through, the magnetic field is interrupted and this turns the contact OFF.

Detection method
Passage detection

Industrial equipment

Reed Relays [Semiconductor Testers]

Reed Relays [Semiconductor Testers]

Reed relays are used for measurement circuit switching in semiconductor testers. In a reed relay, a coil is wrapped around the outside of a reed switch, and the switch is actuated by energizing the coil.

Detection method
Circuit control

Detection method

Fluid level detection

Fluid level detection

Detects vertical movement of a ring magnet due to an increase or decrease in the fluid level of the measured object.

Rotation detection

Rotation detection

As the impeller rotates due to fluid pressure, a magnet rotates also, and a contact goes ON/OFF.