SPX Data Acquisition SYSTEMS DESIGN REVIEW John Dong

SPX Data Acquisition SYSTEMS DESIGN REVIEW John Dong David Haller Adam Johnson Thomas Klaben Luke Kranz

Agenda • • • • Phase Objective Statement (3 min) Engineering Requirements Mapping (3 min) Functional Decomposition (4 min) Systems Architecture (4 min) Concept Generation (4 min) Morphological Table (3 min) Pugh Table (5 min) System Selection (4 min) Benchmarking (3 min) Feasibility (4 min) Project Plan (3 min) Risks (3 min) Questions (15 min)

Phase Objective Statement The overall objective of this project is to provide SPX with a telemetry system capable of transmitting strain data from gauges attached to an operating impeller to a user interface of our choice. ◦ All transmission and reception must be wireless ◦ Gauges and telemetry systems must have reasonable life cycles This phase is dedicated to high level concept development and narrowing down of components to only a few candidates. ◦ Research and benchmarking are of crucial importance to this stage ◦ Feasibility analysis gives us a sanity check on our system design ◦ Morphological Table and Pugh Table allow us to organize and rank our ideas

Engineering Requirements Mapping

Functional Decomposition

System Architecture Power In at Batteries To Gauge To ADC in Transmitter to receiver Receiver and wall plug into laptop Information Start at Strain Gauges Flows to ADC in transmitter sampled at 100 Hz and gets time Stamped, while sent every 100 -500 ms Transmitter sends to receiver Receiver sends to logger in computer Logger Displays live Data and saves into. CSV File

Concept Generation

Morph Table

System Selection

Concept A

Concept B

Concept C

Pugh Table

Benchmarking

Feasibility Strain Gauge Life Can commercial gauges survive 2+ months of testing and stay laminated? Battery Life Can we select a battery that will survive for an entire day of testing? This can be solved by an analysis of the power required to take the number of samples specified by SPX. 100 Hz sampling rate + 10 -20 minute test sessions + 10 sessions a day 1, 200, 000 samples per day Using Mantracourt Online Calculator: Gauge life is difficult to test since our environment is not harsh. Select gauges with a higher NEMA rating than needed. ◦ 2 x AA batteries will power the system for 4 days ◦ 2 x D batteries will power the system for over a month

Project Plan

Risks

Questions