Sensors (iGCSE 2023 onwards)

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14 Terms

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Accelerometer sensor

This type of sensor measures acceleration forces. These may be static forces, such as the continual force of gravity. They can also be dynamic forces, such as those created by movement and vibrations.

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Acoustic sensor

This type of sensors measures the level of sound in an environment.

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Flow sensor

This type of sensor measures the amount of liquid, gas or steam that is flowing through or around a certain environment.

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Gas sensor

This type of sensor measures the presence and concentration of a gas within the immediate atmosphere.

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Humidity sensor

This type of sensor measures the level of moisture in the immediate atmosphere.

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Infra-red sensor

This type of sensor measures infra-red radiation. This type of radiation can be emitted in different amounts by both objects and people.

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Level sensor

This type of sensor measures whether a substance, such as a liquid, is at a certain level or amount.

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Light sensor

This type of sensor measures the ambient light in a certain environment. It can also measure the presence of a direct light, such as a laser beam.

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Magnetic field sensor

This type of sensor measures the presence of magnetic field that may be emitted by an object.

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Moisture sensor

This type of sensor measures the amount of water that is present in a substance, such as soil.

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pH sensor

This type of sensor measures the pH level of a substance.

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Pressure sensor

This type of sensor measures the force of pressure that is applied to the sensor or device. This could be the pressure created by a solid object, or it could be created by liquid or gas.

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Proximity sensor

This type of sensor measures how close an object is in comparison to the sensor. It does this by emitting electromagnetic radiation or an electromagnetic field and measures the radiation as it returns to see if there are any changes.

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Temperature sensor

This type of sensor measures the temperature of an object or substance by either directly touching it or capturing data from the surrounding environment.