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# How to Calculate and Solve for Sensitivity | System Performance Characteristics

Last Updated on January 6, 2021

The image above represents sensitivity.

To compute for sensitivity, two essential parameters are needed and these parameters are Deflection (D) and Change in Measurand (ΔM).

The formula for calculating sensitivity:

S = D / ΔM

Where:

S = Sensitivity
D = Deflection
ΔM = Change in Measurand

Let’s solve an example;
Find the sensitivity when the deflection is 30 and the change in measurand is 14.

This implies that;

D = Deflection = 30
ΔM = Change in Measurand = 14

S = D / ΔM
S = 30 / 14
S = 2.142

Therefore, the sensitivity is 2.142.

Calculating for the Deflection when the Sensitivity and the Change in Measurand is Given.

D = S x ΔM

Where:

D = Deflection
S = Sensitivity
ΔM = Change in Measurand

Let’s solve an example;
Find the deflection when the sensitivity is 20 and the change in measurand is 8.

This implies that;

S = Sensitivity = 20
ΔM = Change in Measurand = 8

D = S x ΔM
D = 20 x 8
D = 160

Therefore, the deflection is 160.

Calculating for the Change in Measurand when the Sensitivity and the Deflection is Given.

ΔM = D / S

Where:

ΔM = Change in Measurand
S = Sensitivity
D = Deflection

Let’s solve an example;
Find the change in measurand when the sensitivity is 12 and the deflection is 60.

This implies that;

S = Sensitivity = 12
D = Deflection = 60

ΔM = D / S
ΔM = 60 / 12
ΔM = 5

Therefore, the change in measurand is 5.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the sensitivity.

To get the answer and workings of the sensitivity using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator

Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.

Now, Click on instrumentation under Materials and Metallurgical

Now, Click on System Performance Characteristics under Instrumentation

Now, Click on Sensitivity under System Performance Characteristics

The screenshot below displays the page or activity to enter your values, to get the answer for the sensitivity according to the respective parameters which is the Deflection (D) and Change in Measurand (ΔM).

Now, enter the values appropriately and accordingly for the parameters as required by the Deflection (D) is 30 and Change in Measurand (ΔM) is 14.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the sensitivity and presents the formula, workings and steps too.