Types of sensors

Types of sensors

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  TYPES OF SENSORS ByEbin Robinson AS Level
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  What is aSensor?  A sensor is a device that detects the changes in electrical or physical or other quantities and thereby produces an output based on the pre-set values entered or the current conditions.
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  Ultrasonic sensor
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   In industrialapplications, ultrasonic sensors are characterized by their reliability and outstanding versatility. Ultrasonic sensors can be used to solve even the most complex tasks involving object detection or level measurment with millimeter precision, because their measuring method works reliably under almost all conditions.
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   A passiveinfrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors. PIR sensor
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  Temperature sensor
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   TheTMP36 isa low voltage, precision centigrade temperature sensor. It provides a voltage output that is linearly proportional to the Celsius temperature. It also doesn’t require any external calibration to provide typical accuracies of ±1°C at +25°C and ±2°C over the −40°C to +125°C temperature range.We like it because it’s so easy to use: Just give the device a ground and ethernet port to screen for reading and read the voltage on the Vout pin.The output voltage can be converted to temperature easily using the scale factor of 10 mV/°C.
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  Speed sensor  Speedsensors are machines used to detect the speed of an object, usually a transport vehicle
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  Blind spot monitor  Ablind spot monitor is a vehicle- based senso device that detects other vehicles located to the driver’s side and rear.Warnings can bevisual, audible, vibrating.  It can also include “cross trafic alerts”.
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  Radar gun  Aradar speed gun is a device used to measure the speed of moving objects. It is used in law-enforcement to measure the speed of moving vehicles and is often used in professional spectator sport, for things such as the measurement of bowling speeds in cricket, speed of pitched baseballs, athletes and tennis serves.  A radar speed gun is a Doppler radar unit that may be hand-held, vehicle-mounted or static. It measures the speed of the objects at which it is pointed by detecting a change in frequency of the returned radar signal caused by the Doppler effect, whereby the frequency of the returned signal is increased in proportion to the object's speed of approach if the object is approaching, and lowered if the object is receding.
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  Water sensor  TheWaterin Fuel Sensor orWiF sensor indicates the presence of water in the fuel. It is installed in the fuel filter and when the water level in the water separator reaches the warning level, the Wif sends an electrical signal to the ECU or to dashboard (lamp).TheWiF is used especially in the Common Rail engines to avoid the Fuelinjector damage.
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  Oxygen sensor  Anoxygen sensor (or lambda sensor) is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analysed.  It was developed by the Robert Bosch GmbH company during the late 1960s under the supervision of Dr. Günter Bauman.The original sensing element is made with a thimble-shaped zirconia ceramic coated on both the exhaust and reference sides with a thin layer of platinum and comes in both heated and unheated forms. The planar-style sensor entered the market in 1990, and significantly reduced the mass of the ceramic sensing element as well as incorporating the heater within the ceramic structure.This resulted in a sensor that started sooner and responded faster.
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  Gyroscope  A gyroscopeis a spinning wheel or disc in which the axis of rotation is free to assume any orientation.When rotating, the orientation of this axis is unaffected by tilting or rotation of the mounting, according to the conservation of angular momentum. Because of this, gyroscopes are useful for measuring or maintaining orientation.
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  MRI  Magnetic resonance imaging(MRI), nuclear magnetic resonance imaging (NMRI), or magnetic resonance tomography(MRT) is a medical imaging technique used in radiology to investigate the anatomy and physiology of the body in both health and disease. MRI scanners use magnetic fields and radio waves to form images of the body.The technique is widely used in hospitals for medical diagnosis, staging of disease and follow-up without exposure to ionizing radiation.
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  Thank you…