• Types Of Sensors In a Smartphone

    What Are The Various Types of Sensors In A Smartphone?

    types of sensors in a smartphone

    Below are a list of the various type of sensors in a smartphone: 

    #1: Proximity sensor


    What is a proximity sensor?

    proximity sensors

    Generally, you can find the sensors in a mobile phone beside the front camera. When you receive a call and bring the mobile phone close to your ears to listen to the caller, its screen goes off to save the mobile device’s battery power. This is the function of the proximity sensor. Similarly, it is this sensor that helps in shifting the voice from the speaker to the earpiece when you bring the device to your ear to listen to a WhatsApp audio clip. The proximity sensor is also very helpful in powering a mobile phone. One of the important aspects that you learn in a mobile phone technician course in Kerala is about sensors.


    #2: Ambient light sensor


    What is an ambient light sensor?



    The ambient light sensor is a type of sensor in a smartphone that enables it to measure the intensity of light around the device. The operating system of a smartphone automatically adjusts the brightness to the device’s display screen based on the input received from its ambient light sensor. In most smartphones, this sensor is also fixed near the camera. In some phones, it can be seen above the camera. If it is in auto mode, the phone’s brightness will be different when you are indoors or outdoors. The screen brightness is increased or decreased with the help of the ambient light sensor. This sensor is also very helpful in saving the power of the mobile phone’s battery. Generally, students that successfully complete a course in the best mobile phone training institute in Kerala will have better technical knowledge. This is because most mobile phone service training institutes in Kerala provide expert training in this field.


    #3: Accelerometer


    What is an accelerometer?


    In order to watch a video, you often hold your mobile phone in landscape mode. When you turn the mobile phone from portrait mode to landscape mode and vice versa, the picture on the screen orients itself in tandem with the mode. The function of the accelerometer is to sense the changes in the holding position or orientation of the smartphone and send signals to the device’s operating system. The accelerometer measures both the X and Y coordinates to match the display with the orientation of the device. With the introduction of the accelerometer, both mobile and gaming apps have become more user-friendly. Those who have studied at the top mobile phone service training institute in Kerala will have in-depth knowledge about all types of sensors.


    #4: Pedometer


    What is a Pedometer?

    pedometer sensor

    Most high-end smartphones come with pedometers. These phones will be of great help to those who attach a lot of importance to their health. The pedometer sensors make use of the body movements that a mobile user makes while walking to determine as to how many kilometres the person has covered in how much time. Though these aspects can be determined with the help of an accelerometer, the reading may not be very accurate. Smartphones provide such information as how many kilometres a person walked and how many calories he/she burned in a day when these sensors work in conjunction with associated mobile apps. The best mobile phone training institutes in Trivandrum teach everything about all types of sensors and components used in smartphones.


    #5: Gyroscopic sensor


    What is a gyroscopic sensor?

    gyroscopic sensor

    In a mobile phone, it is the gyroscopic sensor that makes it possible to incorporate features such as virtual reality, 360-degree videos, and augmented reality. The gyroscopic sensor detects movements in the X, Y, and Z axes. These sensors are also referred to as angular rate sensors or angular velocity sensors. The unit of angular velocity is degree per second. Students who successfully complete a course from the mobile phone service training institute in Thrissur have a good understanding of all types of sensors used in smartphones. This is the main reason why a large number of Keralites are there in the smartphone service centres in Gulf countries.  


    #6: Magnetometer


    What is a magnetometer?

    magnetometer sensor

    A magnetometer sensor helps to detect the presence of magnetic fields. The mobile app Compass in smartphones makes use of this sensor. The magnetometer is also known as the digital compass. Students who undergo the mobile technician training course Trivandrum compulsorily learn about different sensors. The presence of this sensor enables the Compass app in smartphones and makes navigation possible by detecting North, South, East, West directions. If you install the Metal Detector app on your mobile phone, you can use the device for metal detection purposes. It is the magnetometer that makes this possible. This sensor enables smartphones to detect ferrous metals that have magnetic properties and sounds an alarm. Magnetometer also senses the orientation of people that use Google map for navigation purposes. However, one of the most important sensors inside a smartphone is the gyroscope.


    #7: Barometer


    What is a barometer sensor?

    Barrow meter sensor

    The barometer sensor is used in smartphones to enhance the accuracy of the GPS. The barometer is also referred to as the altimeter.  The atmospheric pressure varies with altitude. Therefore, the barometer determines altitude based on the atmospheric pressure. This sensor in your mobile phone sends information to the GPS by detecting at what altitude your smartphone is with respect to the mean sea level (MSL). The barometer works in conjunction with all other sensors in a smartphone to make the GPS work efficiently. Those who have completed a course in the mobile phone repairing training centre in Palakkad are adept at checking and replacing sensors.


    #8: Fingerprint sensor


    What is a fingerprint sensor?

    finger print sensor

    The fingerprint sensor in smartphones enables users to lock and unlock their devices. While this sensor is placed below the camera in some phones, in some other phones it is placed beside the call button or on the touch screen. The fingerprint sensor offers supplementary protection as it is provided in addition to the password and lock screen pattern features. Students who have undergone a course in the best mobile phone service training institute in Kerala will be well equipped to quickly identify and rectify complaints related to fingerprint sensors. Learning about the sensors inside a smartphone is an important and essential part of the mobile phone repair training course.


    #9: Face reader sensor


    What is a face reader sensor?

    face reader sensor

    For the Face ID feature in new generation smartphones to be operated, the sensors, camera, and the DOT projector have to work in conjunction.  This is also known as the True Depth Camera system. These sensors are located on top of the display which is behind the dark strip near the earpiece. They are intelligent sensors and they include a flood illuminator, an infrared camera, an ordinary camera, and a DOT projector. The projector sends 30,000 invisible dots to scan the face of the user when it receives a face scan command. At the same time, a dedicated infrared camera captures the image to the user’s face and analyzes the dots. Then it creates a unique three-dimensional geometry biometric mesh of the user’s face and eyes. Finally, the system saves the biometric data in the phone. Thereafter, whenever the projector receives a face scan command, the system compares the new biometric geometry with the saved data and unlocks the phone if it resembles that of the authorized user of the phone. Students who have done a cell phone technician training course in Kerala and obtained a certificate will be experts in both servicing and replacement of sensors.


    #10: Heart rate monitor sensor


    What is a heart rate monitor sensor?

    heart rate monitor sensor

    Some expensive mobile phones come with a heart rate monitor sensor. It helps the user to monitor his/her heartbeat rate. If it senses any abnormality, it alerts the user. A heartbeat sensor comprises a special LED that works in tandem with an optical sensor. To measure your heartbeat, you will have to press the sensor onto your body. Otherwise, the ambient light enters the sensor and affects the accuracy of the output. Those that have attended the mobile repairing course in Ottapalam, Kerala will have a thorough understanding of all types of sensors in a smartphone. That is why mobile phone technicians from Kerala are employed by mobile phone service centres around the world.


    #11: Thermometer


    What is a thermometer?

    thermometer sensor

    All smartphones come with a thermometer. This sensor measures the temperature of the processor and the battery. If the temperature exceeds a predetermined level, the device is shut off with the help of the operating system. This way the sensor protects the device from damages that excessive temperature can cause. IASE, a leading mobile phone repair training institute, Kerala, offers excellent lab facilities, experienced and expert trainers, and guaranteed placement assistance.


    #12: Humidity sensor


    What is a humidity sensor?

    humidity sensor

    A humidity sensor is usually included in high-end smartphones. Data from this sensor is used to set the operational parameters for Building Management Systems (BMS), HVAC controls, etc., through mobile apps. The syllabus of the smartphone repairing course offered by the best mobile phone training institute in Thrissur, Kerala, includes training on how to control the HVAC system using the humidity sensor.


    #13: Hall-effect sensor


    What is a Hall-effect sensor?

    hall effect sensor

    Hall-effect sensors are used in smartphones to enable proximity switching, positioning, speed detection, and the functioning of certain applications. However, in today’s modern smartphones, IR-based proximity sensors are used instead of the Hall-effect sensors. Mobile phone service technicians trained by the top mobile service training institute in Kerala know how to service all types of smartphone sensors and also release them.


    #14: Back-Illuminated Sensor


    What is a back-illuminated sensor?

    back illuminated sensor

    One of the new features incorporated in the camera of modern smartphones is the back-illuminated sensor. It is a type of digital image sensor. Its function is to increase or decrease the intensity of light falling on the CCD so as to ensure the right image quality when you take a photograph. Back-illuminated sensors are specially designed for CCTV cameras and number plate readers. In 2008, Sony Electronic Corporation introduced mobile phones with back-illuminated sensors for the very first time in the market.


    #15: IR Blaster


    What is an IR Blaster?

    IR blaster

    If your smartphone has an IR Blaster, you can operate all equipment such as air conditioners, televisions, set-top boxes, and LCD projects, among others, that can be controlled using an infrared remote control handset. The benefit of having a smartphone with an IR Blaster is that the device need not be in the light of sight or vicinity of the equipment to be controlled using your phone. Unlike the ordinary infrared remote control handsets, you can operate the equipment kept in another room with the help of a mobile phone with IR Blaster. The letters IR in IR Blaster expand to infrared. The best universal remote control app that Android phone users can have is “AnyMote – Smart Remote Control”. Students that have undergone studies at the best mobile phone repair training course in Thrissur will have a clear understanding of the IR Blaster.


    #16: NFC (Near-Field Communication) Sensor


    What is near-field communication – NFC?

    NFC sensor

    The technology Near-Field Communication (NFC) enables users to securely effect digital transactions, exchange data, and link electronic equipment with a single touch. NFC is used for short-range communications. This means that the maximum distance allowed for effective data transmission or communication between devices is about 4 centimetres. Contactless cards make use of NFC technology. If you are using a Samsung smartphone, you will be making use of this technology when you transfer money through Samsung Pay. NFC enables you to quickly connect with wireless devices and Android Beam enables you to transfer data.


    #17: GPS Sensor


    What is a GPS sensor?

    GPS sensor

    The GPS in mobile phones is a satellite-based radio navigation system. The GPS receiver in your mobile phone makes use of signals from satellites to determine where you are at any given time. Your location on earth or even the road you are driving on is instantaneously identified when the GPS receiver in your smartphone receives pings from the satellites in space. The GPS does not use any of the data in your phone. That is why it is possible to identify your location even when there is a loss of signal on your phone.


    18 Geiger Counter Sensor


    What is a Geiger counter sensor?

    Geiger counter sensor

    The Geiger counter is designed to measure a person’s exposure to radiation from radioactive material. With the help of an in-built camera, phones can measure the radiation dose received in an hour.


    19.Pulse Oximeter


    What is a pulse oximeter sensor?

    Pulse oximeter sensor

    The SpO2 sensors used in smartwatches and smartphones are referred to as pulse oximeters and are used for measuring the oxygen level or oxygen saturation level in blood. The pulse oximeter used in the medical field is a small device that resembles a clip. Finger pulse oximeters are widely used in recent times. This device can even be used on a toe to measure the blood oxygen saturation level and it does not cause any pain. Smartphones that come with a pulse oximeter are very useful for people with medical conditions. The pulse oximeter used in a mobile phone for receiving signals from a sensor fixed to a finger, intelligently analyzing the information received, and displaying the result in a creative manner is referred to as a phone oximeter. A study carried out in Vancouver, Canada, on smartphones with pulse oximeter sensors found out that the devices were very effective in measuring blood oxygen saturation levels. 


    How Many Sensors Are There In A Mobile Phone?


    In addition to the sensors mentioned above, many different types of sensors  in a smartphone. The camera in a mobile phone is a type of image capturing sensor, while the microphone is a voice sensor. Apart from these, there are many different types of software programme-based sensors. The number of sensors  in a smartphone is dependent on its price and features. Including hardware and software-based sensors, approximately 25 different types of sensors are used in a mobile phone. 


    The mobile phone service training course is a course that promises huge employment possibilities in India and Gulf countries. A mobile service technician with experience earns a salary of Rs. 25,000 per month in Kerala and Rs. 50,000 per month in Gulf countries. Mobile phone repair training is one of the ‘high demand’ courses for plus two holders. One of the important topics in a mobile phone course is ‘what are the different types of sensors in a smartphone?’ We believe that this article would have provided you with some important information on this subject.


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