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4.1.4 Selection of Alternative Signal Conditioner

Tacuna Systems Strain Gauge or Load Cell Amplifier/Conditioner Interface Manual

(Tacuna) provides reliable and quiet reading, and easy set-up experience. It is most viable

economical alternative to currently used signal conditioner.

Honeywell UV-10 In-line Amplifier provides satisfying performances as well, and a set-

up experience slightly more complex than Tacuna. It is more costly compared to Tacuna, but

also significantly more economical compared to the current system.

Out of the four signal conditioners considered, Tacuna is recommended as the top choice,

while Honeywell UV-10 is recommended as the second choice.

4.1.5 Test Run of Selected Laboratories with Selected Signal Conditioners

Test runs of both laboratories are performed with both Tacuna and Honeywell UV-10, no

problematic issues were encountered with the alternative equipment, and the experiments were

all successful.

Sample laboratory reports of both laboratories performed with Tacuna are included in

Appendix 1 and Appendix 2.

4.2 Updated Software and Instruction Materials

Updated software and instruction materials are produced for both laboratories. This

section describes the improvements on the software features and the contents of the instruction

material.

4.2.1 Updated Software

Updated VI for both labs added elements to the file output function. Using Write to

Measurement File instead of Write to Spreadsheet adds a column for elapsed time, which makes

the data more complete. The data is saved under the same directory as the program, with

standardized file names and “.csv” extension.

Updated software for Strain and Pressure Measurement Laboratory incorporated some

improvements of the existing VI, which include:

The LabVIEW Formula function is used to calculate strain, pressure and stresses, instead

of Formula Node. The Formula function can process dynamic data input, while the Formula

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