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Transducer Detectivity is the detectivity normalized to a unit detector area and detection bandwidth. Check FAQs
Dt=RdEn
Dt - Transducer Detectivity?Rd - Detector Responsivity?En - Root Mean Square Noise Voltage of Cell?

Detectivity Example

With values
With units
Only example

Here is how the Detectivity equation looks like with Values.

Here is how the Detectivity equation looks like with Units.

Here is how the Detectivity equation looks like.

1.3752Edit=15.1Edit10.98Edit
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Detectivity Solution

Follow our step by step solution on how to calculate Detectivity?

FIRST Step Consider the formula
Dt=RdEn
Next Step Substitute values of Variables
Dt=15.1A/W10.98V
Next Step Prepare to Evaluate
Dt=15.110.98
Next Step Evaluate
Dt=1.3752276867031
LAST Step Rounding Answer
Dt=1.3752

Detectivity Formula Elements

Variables
Transducer Detectivity
Transducer Detectivity is the detectivity normalized to a unit detector area and detection bandwidth.
Symbol: Dt
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Detector Responsivity
Detector Responsivity is defined as measures of the input-output gain of a detector system.
Symbol: Rd
Measurement: ResponsivityUnit: A/W
Note: Value should be greater than 0.
Root Mean Square Noise Voltage of Cell
Root Mean Square Noise Voltage of Cell denotes fluctuations generated within the transducer due to inherent noise sources, impacting its signal clarity.
Symbol: En
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.

Other Formulas to find Transducer Detectivity

​Go Detectivity of Transducer
Dt=snrD

Other formulas in Transducers category

​Go Sensitivity of Photoresistive Transducer
ΔS=ΔRΔH
​Go Change in Resistance
ΔR=ΔHΔS
​Go Current Generator Capacitance
Cg=Ct+Camp+Ccable
​Go Capacitance of Transducer
Ct=Cg-(Camp+Ccable)

How to Evaluate Detectivity?

Detectivity evaluator uses Transducer Detectivity = Detector Responsivity/Root Mean Square Noise Voltage of Cell to evaluate the Transducer Detectivity, The Detectivity formula is defined as how effectively the transducer can detect weak signals relative to the input signal level and the noise present in the output signal. Higher detectivity values indicate a more sensitive transducer capable of discerning smaller signals amidst noise. Transducer Detectivity is denoted by Dt symbol.

How to evaluate Detectivity using this online evaluator? To use this online evaluator for Detectivity, enter Detector Responsivity (Rd) & Root Mean Square Noise Voltage of Cell (En) and hit the calculate button.

FAQs on Detectivity

What is the formula to find Detectivity?
The formula of Detectivity is expressed as Transducer Detectivity = Detector Responsivity/Root Mean Square Noise Voltage of Cell. Here is an example- 0.727711 = 15.1/10.98.
How to calculate Detectivity?
With Detector Responsivity (Rd) & Root Mean Square Noise Voltage of Cell (En) we can find Detectivity using the formula - Transducer Detectivity = Detector Responsivity/Root Mean Square Noise Voltage of Cell.
What are the other ways to Calculate Transducer Detectivity?
Here are the different ways to Calculate Transducer Detectivity-
  • Transducer Detectivity=Signal to Noise Ratio of Output Signal/Input Displacement SignalOpenImg
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