A proximity sensor is designed to detect when something comes into a given range of the object in which it is installed. For example, car manufacturers are beginning to use proximity sensors in car bumpers to aid drivers in parallel parking. When a vehicle is maneuvering and comes near another parked car, it gives off a warning. In naval warfare, submarines fire torpedoes which are wired with a proximity fuse which will detonate the payload when the weapon gets near the target.
Photoelectric sensors use light to detect the presence, absence, or distance of an object. They often use the infrared spectrum of light, though visible light is also used.
Thrust under means pushing or shoving beneath something else. She was thrust under the water and drowned. The continent was thrust under the other one.
The oragin of the sonar in whales in dolpins. They were the first to use ecolocation to ee under water.
infrared radiation-apex
No. Proximity sensors are generally used to detect objects, not people. Motion sensors use a different technology.
the proximity of the boy was making his sister uncomfortable.
A proximity sensor is designed to detect when something comes into a given range of the object in which it is installed. For example, car manufacturers are beginning to use proximity sensors in car bumpers to aid drivers in parallel parking. When a vehicle is maneuvering and comes near another parked car, it gives off a warning. In naval warfare, submarines fire torpedoes which are wired with a proximity fuse which will detonate the payload when the weapon gets near the target.
Its a rough decription of non-exact closeness. As an example.. My Mom got nervous that I might damage something when I placed a cup in close proximity to my computer. Derived from "proximate" or "near." Very often misused in sentences as above by saying that a cup was placed close near a computer would be better said "...when I placed a cup too close to my computer." "Close proximity" in a phrase is somewhat redundant and superfluous because "close" implies "near" as well.
They use their gills to breathe under water.
Most proximity sensors use some sort on field impingement. Hall effect devices use the movement of electric current to generate a signal. Magnetic devices use a magnet to sense the field or close a circuit by repulsion.
Alot of them use a sonar-like sensors that emit soundwaves to help them "see".
IR sensors
Students in college dorm rooms live in close proximity to each other.
Exploratory robots use motion, heat, and camera sensors.
the fork on the left
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