Sensors Flashcards
A device that measures physical input from its environment and converts it into data that can be interpreted by either a human or a machine
Sensors
Types of Sensors
Analog, Digital
Are the devices that produce analog output in correspondence to the quantity being calculated.
Analog Sensors
Types of Analog Sensors
Accelerometers
Light Sensors
Sound Sensors
Pressure Sensors
Analog Temperature Sensor
Detect changes in acceleration applied on the sensor
Accelerometers
Detects light energy and is converted to that of electrical energy
Light Sensors
These light sensor, also termed as solar cells, act in response to light levels either by generating voltage or current and stored in silicon cells for further usage.
Photovoltaic
This type of light sensor is mainly utilized for gauging purposes and reacting for light levels.
Light-Dependent
Light sensor that acts in response to various infrared levels and performs as switches.
Photo Diode
detect closeness of another item or detects motion
Proximity
Modules to find out sound waves by the intensity and converting those into electrical signals
Sound Sensors
Measurement of pressure levels of either liquid or gases
Pressure sensor
Other term for pressure sensor
piezometers
deliver analog output voltage or current signals in linear to the temperature levels
Analog Temperature Sensor
Accuracy of analog temperature sensors
+-10C
Other term for Analog Temperature sensor
Thermistor
Electrical Sensors where the information is converted to digital form and then transmitted
Digital Sensors
Single distinct output of a digital signal
bit
Combination of multiple bits
byte
Types of Digital Sensors
Digital Accelerometers
Digital Temperature Sensor
Generally make use of PWM to generate output pulses
Digital Accelerometer
Output waveform of a digital accelerometer
Square Wave
Silicon dependent temperature sensors where the output is the accurate digital representation of the measured temperatures
Digital Temperature Sensors
Accuracy of Digital Temperature Sensors
+-0.5C
Typical temperature range of Digital Temperature Sensors
0C to 700C
Solid-state devices where a part of the camera’s hardware which illustrates light and converts the visible light into a picture
Digital Camera Sensor
