Sensor
circuits  related subject Sensors |
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Alarms &
Security Circuits |
| Capacitive sensor
capacitive sensor, useful as tip-control |
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Capacitive sensor
Spread Spectrum Capacitive Sensor circuit |
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Compass Sensor
This electronic device is a high sensitive magnetic field sensor,
magnetoresistive effect of thin-film permalloy |
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Electromagnetic
Field Detector This circuit is sensitive to low frequency electromagnetic
radiation and will detect for example hidden wiring or the field that
encompasses a transformer |
| Electromagnetic
field probe with meter to locate stray electromagnetic (EM) fields. It will easily detect both audio and RF signals up to frequencies of around
100kHz |
| Fridge door alarm
beeps if you leave open the door over 20 seconds 3V battery operation, simple circuitry |
| Humidity
sensor 2322 691 90001 |
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Inclinometer
an inclinometer (tilt-measuring circuit) whose sensor (SN1) is filled with
liquid electrolyte. Acting as a potentiometer, the inclinometer produces a
voltage proportional to tilt on its center electrode, ... |
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Invisible Broken Wire Detector Invisible Broken Wire Detector,
pdf file |
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Ionising Smoke Detector
pdf file |
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Little Door Guard if some intruder tries to open the door of your house,
this circuit sounds an alarm to alert you against the attempted intrusion,
pdf file |
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Mercury switch filter |
| Metal detector |
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Metal detector |
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Metal detector
A single chip metal detecor with a range of a few inches. This is useful for
decting nails or screws in walls and floors, or for locating buried mains cable,
CS209A, CS209AYN
The CS209A is a bipolar monolithic integrated circuit for use in metal
detection/proximity sensing applications,
pdf file |
| Motor
control sensor feedback circuits sensors are used to sense the current,
position, speed and direction of the rotating motor, pdf file |
| Oxygen
sensors oxygen sensors |
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Precision Digital Altimeter Pressure Sensor circuit,
Educypedia |
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Pressure Sensor |
| Proximity
inductive switch This type of switches replace the traditional mechanical
limit switches, and never wear out |
| RF/capacitance
level instrumentation capacitance level detectors are also referred to as radio frequency (RF) or admittance
level sensors. They operate in the low MHz radio frequency range, measuring admittance of an alternating current (ac) circuit that varies with level |
| Ridiculously
sensitive charge detector |
| Touch plate touch plate circuit with transistors |
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Use your printer port as a high-current ammeter
with a few inexpensive components and INT1Ch, you can turn the printer port of your PC into a high-current ammeter. This design's goal is to make remote
high-current measurements, but you can use this technique to remotely measure any other similar analog electrical quantity, such as voltage and charge,
Educypedia |
Vibration Detector The detector will sense vibration caused by activities
like drilling and switch on the connected load (bulb, piezobuzzer,
etc) to alert you, Educypedia, pdf file |
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Voltage-Based Controller For Switches a simple circuit for controlling four
switches from a distance through just a pair of wires, pdf file |
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Wheel encoders |
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Horizontaal |
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Last updated on:
2008-06-12
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