Sensors

Do You Know...

Click here to find out more about choosing the right pressure sensor

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Do You Know...

Click here to find out more about choosing the right pressure sensor

Shop Now

Overview

Sensors are one of the most essential pillars of any intelligent electronics system. They provide the real world interface for a wide range of applications, whether for city infrastructures, industrial automation and control, or wearable devices, all use large arrays of sensors for collecting data. This data serves as inputs to the main control system (like a Processor or a Microcontroller) enabling intelligent decision-making. Sensors are the eyes and ears of a system, capturing critical information of the physical world and, converting these physical parameters into signals which can be measured electrically.


Sensors can be broadly classified based on the physical parameters they detect or measure, and suited to different markets and applications. Therefore, when designing intelligent systems, choosing the right sensor is critical. Certain features need to be considered when selecting the right sensor.


Criteria to choose a Sensor:

  • Accuracy

  • Resolution

  • Range

  • Output Type

  • Response time

  • Connectivity

  • Application

  • Cost

  • Reliability


One classification type of sensors is Analog and Digital Sensors, which are based on the nature of the output signals they produced.


Analogue sensors produce a continuous output signal, ranging from a few mico-volts (uV) to several milli-volts (mV), proportional to the quantity being measured. These signals are too low to be measured so some form of amplifier is used to amplify the signal. An analogue-to digital (ADC) is used to convert the analogue signal into the digital form in order to obtain precision and accuracy, as well as to provide readable inputs to the main control system, typically a microcontroller.


Digital Sensors produce discrete output signals that are a digital representation of the quantity being measured. They produce a binary output signal in the form of logic “1” or logic “0”. The signal measured is directly converted into a digital signal output inside the sensor itself allowing it to have greater resolution and higher accuracy compare to analogue type sensors.


Classification based on Measurands:

  • Acoustic

  • Biological

  • Chemical

  • Electric

  • Magnetic

  • Mechanical

  • Optical

  • Radiation

  • Thermal


Farnell elemnet14 has a wide range of sensors from industry leading suppliers, provide the engineers with the choices required to develop various applications, based on specifications such as sensitivity, range, precision, resolution and accuracy from industrial applications to the latest consumer devices. Use our parametric filters to refine your search results based on your required specifications.

Featured Products

Sensors - Industrial

Honeywell

SNG-Q Series Quadrature Speed and Direction Sensors

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TELEMECANIQUE SENSORS

Absolute Rotary Encoder

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OMRON ELECTRONIC COMPONENTS

D6F-PHMEMS Differential pressure Sensor

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TE Connecitivity

HS1101LFRelative Humidity Sensor

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OMRON

Optical Sensor detects mirrored and transparent surfaces

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TELEMECANIQUE SENSORS

Contactless RFiD Safety Sensor

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HONEYWELL

HPM Series, Particle Sensor

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HONEYWELL

SEK0002 Sensor Evaluation kit

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Sensors - ICs

MAXIM

Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health

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Microchip

PAC1934T-I/J6CX - Current Sense Amplifier

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ST

LSM303AH: e-Compass: 3D digital accelerometer, 3D digital magnetometer

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MURATA

MEMS 3 axis accelerometer

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MAXIM INTEGRATED PRODUCTS

MAX12900 Sensor Transmitor

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TEXAS INSTRUMENTS

HDC2010 Low Power Humidity and Temperature Digital Sensor

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WURTH ELEKTRONIK

WE-HCI High Current Power Inductors

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NXP

MMA8652FC 12-bit accelerometer - industry leading performance in a small package.

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Featured Suppliers

ST MICROELECTRONICS
KIONIX
HONEYWELL
OMRON

Videos

Prototyping with Sensors

Sensors and Actuators Overview | Intel Software

Getting Started with proximity and ambient sensor