Sensors: meaning, definitions and examples

Use in general contexts when referring to devices that detect changes in the environment, such as temperature, light, or motion. Typically used in technology, engineering, and electronics.

• The car is equipped with sensors that help it park automatically.
• Modern smartphones have sensors to track various activities like steps and heart rate.

Use when referring to devices that discover or identify specific substances, objects, or signals. Typically used in security, scientific research, and medical fields.

• Smoke detectors are mandatory in all new buildings to ensure safety.
• Metal detectors are widely used in airports to prevent security threats.

Use when referring to devices that examine or explore something, often in science, medicine, and space exploration. Probes are usually used for more invasive or investigative tasks.

• NASA launched a new space probe to study the surface of Mars.
• Doctors use medical probes to detect abnormalities within the body.

Used to refer to devices or instruments that detect changes in the environment, often involving electrical or mechanical systems.

• The security system is equipped with motion sensors
• The car's sensors detected an obstacle

Mainly used in biological or physiological contexts to describe specialized cells or groups of nerve endings that respond to sensory stimuli.

• Receptors in the skin detect changes in temperature
• The body's pain receptors are activated in response to injuries

Applied when referring to devices specifically designed to discover or identify the presence of a particular substance, object, or condition, often related to safety.

• Smoke detectors are mandatory in every apartment
• Metal detectors are used at airports for security checks