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Air Pressure Switch
Return Learning Kit Example 1 Example 2 Example 3

 

Learning Kit
Example 1
Example 2
Example 3

This Fuji & Co. component FKS-111 is an exceptionally high sensitivity air pressure sensor, as low as 0.1 mm H2O responding only to ultra-low frequency air pressure changes. For example, in a tightly sealed room, it detects opening/closing doors and windows where such low frequency air pressure changes occur. But, the sensor is not responsive to the audible sound waves which have higher frequency pressure variations, nor to normal ambient air pressure changes.

The device may be used for home electronics, security devices, industrial equipment, etc..

For better understanding, learning kit is available at cost @$120/kit including postage(via EMS)

Characteristics:

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Detection of inaudible air pressure changes at 0.1 - 5 Hz. frequency range

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Detection of lowest air pressure changes of 0.1mm H2O

Applications:

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Intrusion Detection

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Glass Break Sensor

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Unauthorized Access via Doors

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Home Automation

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Door Detection

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Air Control

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Industrial Equipment

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Sealed Room Monitor

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Subsurface disturbance detector for swimming pool

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Event (accident) data recorder

Model FKS-111
Parameter Conditions Min. Typ. Max. Units
Supply voltage   2.2   10 V
Central voltage of full swing range T = 25C
RL = 47 Kohm
0.2   1.3 V
Settling time     40   Seconds
Minimum detection air pressure Vcc = 5V   0.1   mm H2O
Detection frequency range air pressure changes Vcc = 5V 0.1   5 Hz.
Operating temperature   -10   80 C
Storage temperature   -30   100 C

Physical Dimensions:

Equivalent Circuit:

 

 
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Last modified: October 25, 2009