The phrase "as a practical device" is correct and usable in written English.
It can be used when discussing a tool, method, or approach that serves a functional purpose in a specific context.
Example: "The new software was designed as a practical device to streamline our workflow and improve efficiency."
Alternatives: "as a functional tool" or "as a useful mechanism."
Although they started out as a practical device for covering a gentleman's modesty when he mounted a horse, by the time of Wolf Hall the codpiece had become a large and ornate thing.
Consequently, the appropriation of the procedure not only will be useful for its application as a monitoring and evaluation tool of effectiveness of novice physician's training programs in ultrasonography, but also as a practical device in diagnosis schemes.
Results of model tests show that the FBG hoop-strain sensor demonstrates good performance in the circumferential strain measurement, and can be considered as a practical device for pipeline health monitoring.
Others are working on quantum cryptographic schemes to replace existing schemes in case a practical device is built.
Enhanced precision in micro-forceps peeling assisted by tremor compensation was also demonstrated in a biological tissue model, thereby further validating its potential as a practical microsurgical device.
Telephones were first sold exclusively for business purposes and only later as a kind of practical device for the home.
This sodium chloride sensor has shown feasibility as a practical, stable, inexpensive device with excellent performance and most of the desirable sensor properties including reversibility.
The miniaturized mobile TM platform TES (Transportable Examination Station; GlobalMed Inc., Scottsdale, AZ, USA) was chosen as a practical and lightweight device.
The findings can serve as a practical guide for isolation device designs where the uncertainties with ground motions and variability of structural properties are effectively incorporated under the fragility function framework.
