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Advantages of Quantum Sensor | disadvantages of Quantum Sensor

This page covers advantages and disadvantages of Quantum Sensor and Quantum sensing basics. It mentions benefits or advantages of Quantum Sensor and drawbacks or disadvantages of Quantum Sensor.

What is Quantum Sensor used for quantum sensing ?

Introduction:
A quantum refers to minimum quantity of radiation i.e. one photon. The sensor which measures PAR or PPFD is called quantum sensor. PAR stands for Photosynthetically active radiation and PPFD stands for Photosynthetic Photon Flux Density. PPFD is photon flux integrated over the 400 to 700 nm waveband. Radiation which drives photo-synthesis is known as PAR. PAR can be measured in units of in µmoles per meter squared per second. It has radiation in the range from 400 to 700 nm.

Quantum Sensors from Apogee Instruments
Image Courtesy : Apogee Instruments Inc.

The figure depicts quantum sensors of two types full spectrum and original series manufactured by Apogee Instruments Inc.

Quantum sensor has quantized energy levels.
Example: APD Avalanche Photodiode

Quantum sensors can be calibrated for sun light or electric lights. They are used for various applications viz. greenhouses, agriculture, aquariums, under canopies, ocean underwater environments, measurements of HPS, metal Halide, T5 CWF etc.

Ideally, when a quantum sensor measures light with different spectra, the sensor output depends only on the properties of the light sources and not on those of the sensor.

Benefits or advantages of Quantum Sensor

Following are the benefits or advantages of Quantum Sensor:
➨They are available at lower costs.
➨They offer excellent measurements for all light sources.
➨It measures E-fields and H-fields very accurately across many frequencies.
➨It measures physical quantities against atomic properties. Hence there is no drift. Moreover it is not required to be calibrated.
➨Quantum entanglement can be used to improve sensitivity or precision in measurements.

Drawbacks or disadvantages of Quantum Sensor

Following are the drawbacks or disadvantages of Quantum Sensor:
➨There are many error sources which can reduce accuracy of light measurements. Spectral error found in quantum sensors is one of these errors.



Advantages and Disadvantages of other Sensor Types

Capacitive    Inductive    Photoelectric    Ultrasonic    Infrared    Motion    Biometric    Force    Humidity    Temperature    Light    Barometer    Sound    pH    Soil Moisture   

Advantages and Disadvantages of other wireless technologies

IrDA    HomeRF    Bluetooth    Radar    RF    Wireless    Internet    Mobile Phone    IoT    Solar Energy    Fiber Optic    Satellite    GPS    RFID    AM and FM    LTE   

What is Difference between

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Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD
FDMA vs TDMA vs CDMA
FDM vs TDM
CDMA vs GSM

RF and Wireless Terminologies


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