Which sensor is used to detect dust?

SM-PWM-01C is a dust sensor that detects the dust particle concentration in air by using optical sensing method. An infrared light emitting diode (IR LED) and a photo-sensor are optically arranged in the device. The photo-sensor detects the reflected IR LED light by dust particles in air.

How to detect dust on floor?

A laser pointer put on the floor slightly angled so its beam grazes the surface, and human eyes or a camera looking from above detect dust pretty well. Scan the beam across the floor to see more.

How does a dust sensor work?

Based on the scattering principle of light, the working principle of dust particle sensor was developed. Particles and molecules scatter light when exposed to light.At the same time, they absorb some of the energy of the light that hits them. Dust particle sensors are designed to sense dust particles in the air.

Which type of sensor is used to detect the position of an object?

Inductive position sensors detect the position of an object by changes in the characteristics of a magnetic field that is induced in the coils of the sensor. One type is called an LVDT, or Linear Variable Differential Transformer.

What is optical dust sensor?

Description: Sharp’s GP2Y1010AU0F is an optical air quality sensor, or may also known as optical dust sensor, is designed to sense dust particles. An infrared emitting diode and a phototransistor are diagonally arranged into this device, to allow it to detect the reflected light of dust in air.

What is dirt sensor?

Roomba® uses Dirt Detect™ Technology, which allows it to focus its cleaning effort in dirtier areas. When your robot finds more dirt than usual concentrated in one (1) area, it will activate Dirt Detect™ and work harder to clean the same area until the sensors detect fewer particles in that particular area.

What is Cliff sensor?

A mechanical cliff sensor is simply a contact that runs along the ground that when a large drop off is encountered – flips a switch or sensor that tells the controller that it has reached a drop off.

How do you test a dust sensor?

To check for sensor dust, set your camera to Aperture Priority mode, then select a narrow aperture, such as f/16 or f/22. Using a telephoto lens or a zoom lens set to the longest focal length, take a photo against a white wall at the minimum focusing distance from your subject.

What is dust monitoring?

Dust monitoring is one aspect of air quality that industrial hygienist use to determine the amount of dust particles present in the workplace, cities or communities over a given period of time. Two types of dust monitoring include PM10 and Respirable dust, where the quantity and size of the particles are both measured.

What are the types of position sensors?

Common types of position sensors include:

• Capacitive displacement sensor.
• Eddy-current sensor.
• Hall effect sensor.
• Inductive sensor.
• Laser Doppler vibrometer (optical)
• Linear variable differential transformer (LVDT)
• Photodiode array.
• Piezo-electric transducer (piezo-electric)