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# How to Calculate and Solve for Half Bridge Output Voltage of Circuit under Strained Condition | Electrical Strain Guages

Last Updated on January 24, 2021

The image above represents half bridge output voltage of circuit under strained condition.

To compute for half bridge output voltage of circuit under strained condition, three essential parameters are needed and these parameters are Gauge Factor (GF), Strain (ε) and Input Supply Voltage (vi).

The formula for calculating half bridge output voltage of circuit under strained condition:

vo = (GF2) . ε vi

Where:

vo = Half Bridge Circuit Output Voltage
GF = Gauge Factor
ε = Strain
vi = Input Supply Voltage

Let’s solve an example;
Find the half bridge output voltage of circuit when the guage factor is 8, the strain is 4 and the input supply voltage is 2.

This implies that;

GF = Gauge Factor = 8
ε = Strain = 4
vi = Input Supply Voltage = 2

vo = (GF2) . ε vi
vo82 x 4 x 2
vo = 4 x 4 x 2
vo = 32

Therefore, the half bridge output voltage of circuit is 32 V.

Calculating for Guage Factor when the Half Bridge Output Voltage of Circuit, the Strain and the Input Supply Voltage is Given.

GF = vo x 2 / ε . vi

Where;

GF = Gauge Factor
vo = Half Bridge Circuit Output Voltage
ε = Strain
vi = Input Supply Voltage

Let’s solve an example;
Find the guage factor when the half bridge output voltage of circuit is 10, the strain is 15 and the input supply voltage is 18.

This implies that;

vo = Half Bridge Circuit Output Voltage =10
ε = Strain =  15
vi = Input Supply Voltage = 18

GF = vo x 2 / ε . vi
GF = 10 x 2 / 15 . 18
GF20 / 270
GF = 0.074

Therefore, the guage factor is 0.074.

Calculating for Strain when the Half Bridge Output Voltage of Circuit when the Guage Factor and the Input supply Voltage is Given.

ε = (vo x 2 / GF) / vi

Where;

ε = Strain
vo = Half Bridge Circuit Output Voltage
GF = Gauge Factor
vi = Input Supply Voltage

Let’s solve an example;
Find the strain when the Half Bridge Circuit Output Voltage is 10, the guage factor is 4 and the input supply voltage is 2.

This implies that;

vo = Half Bridge Circuit Output Voltage = 10
GF = Gauge Factor = 4
vi = Input Supply Voltage = 2

ε = (vo x 2 / GF) / vi
ε = (10 x 2 / 4) / 2
ε = (20 / 4) / 2
ε = 5 / 2
ε = 2.5

Therefore, the strain is 2.5.

Calculating for Input Supply Voltage when the Half Bridge Output Voltage of Circuit, Guage Factor  and Strain is Guage.

vi = (vo x 2 / GF) / ε

Where;

vi = Input Supply Voltage
vo = Half Bridge Circuit Output Voltage
GF = Gauge Factor
ε = Strain

Let’s solve an example;
Find the input supply voltage when the half bridge output voltage of circuit is 18, the guage factor is 10 and the strain is 7.

This implies that;

vo = Half Bridge Circuit Output Voltage = 18
GF = Gauge Factor = 10
ε = Strain = 7

vi = (vo x 2 / GF) / ε
vi = (18 x 2 / 10) / 7
vi = (36 / 10) / 7
vi3.6 / 7
vi = 0.514

Therefore, the input supply is 0.514.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the half bridge output voltage of circuit under strained condition.

To get the answer and workings of the half bridge output voltage of circuit under strained condition 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 Electrical Strain Guages under Instrumentation

Now, Click on Half Bridge Output Voltage of Circuit under Strained Condition under Electrical Strain Guages

The screenshot below displays the page or activity to enter your values, to get the answer for the half bridge output voltage of circuit under strained condition according to the respective parameters which is the Gauge Factor (GF), Strain (ε) and Input Supply Voltage (vi).

Now, enter the values appropriately and accordingly for the parameters as required by the Gauge Factor (GF) is 8, Strain (ε) is 4 and Input Supply Voltage (vi) is 2.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the half bridge output voltage of circuit under strained condition and presents the formula, workings and steps too.