Data Acquisition Web

Motion sensors span a wide class of devices. From displacement sensors, as the well known LVDT, to cameras, many different ones are used. Optical, RF, ultrasonic, magnetic, capacitive, Doppler; interferometers, etc., so many are the principles behind motion sensors. Confusing can be some acceleration sensors, as static acceleration or force sensors could be also be included and certainly there is no apparent motion when you measure a weight or a static pressure.

Circular motion can use many types of encoders but there are other tacho solutions.

Motion distances vary as well on very wide range: from um to Km.

Security systems have its own gamut of motion sensors. Among them are infrared sensors, passive or active, RF proximity sensors as well as microwave and radar, or ultrasonic sensors and emitters. Cameras are also widely used as well as lasers both visible and infrared.

Industry uses many of these plus vibration sensors, strain gages, piezoelectric and capacitive sensors and many types of encoders.

Robotics is another big user of motion sensors on almost all of their incarnations.

We will try to cover as many motion sensors as we can, being confident from the very beginning that we never will cover all types of motion sensors.

Motion sensors are powered by many principles, some of them are:

• Passive Infrared/ Active Infrared (light beam)
• Visible Light Beam/ Laser Beam/cameras/ Video
• Proximity (RF field)
• Microwave/Radar/Doppler
• Ultrasonic Beam/Doppler
• Acceleration/ Vibration/Force/Pressure/Strain/Stress/Tilt/Inclination
• Encoders/Tacho-Generators/Centrifugal-Centripetal Force/