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I need help setting up and carrying out an ultrasonic spectroscopy study aimed at material characterization of liquids. The core measurements I’m after are acoustic velocity, density, attenuation, time-of-flight (TOF) and phase angle. Your role will be to guide—or, if you already have the necessary tools, directly perform—the acquisition and post-processing steps that yield those five parameters with dependable accuracy. I am open to suggestions on transducer selection, coupling media, path length choices, signal conditioning and any calibration routines that can tighten uncertainty. If you plan to deliver processed results only, please outline the exact raw data requirements so I can collect them on my end. Conversely, if you prefer to run the entire experiment yourself, tell me what sample volumes and environmental constraints you need met. Either way, the final hand-off should include: • Clean data files (CSV or MAT) for all captured waveforms • A concise methods summary describing equipment, settings and calibration steps • The computed values for velocity, density, attenuation, TOF and phase angle, with unit annotations • A short discussion of measurement uncertainty and limitations Experience with pulse-echo or through-transmission setups, FFT-based phase analysis and impedance matching will be highly regarded. Let me know your proposed workflow and timeline so we can move forward quickly.
Project ID: 40166248
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Hi, My background includes pulse-echo and through-transmission configurations, broadband ultrasonic transducers, FFT-based phase analysis, and careful impedance and coupling considerations for liquid media. I am comfortable working either as a technical guide—helping you design and execute the experiment—or by performing the full post-processing and analysis if you prefer to acquire the raw data on your end. Proposed workflow: Assist with experimental setup design, including transducer frequency selection, path length optimization, coupling strategy, and temperature control. Define calibration routines (reference liquid, delay compensation, system response correction) to minimize uncertainty. Specify raw data acquisition requirements (sampling rate, excitation waveform, trigger method, reference channels). Perform signal conditioning and processing: TOF extraction, velocity calculation, attenuation estimation, phase angle via FFT/cross-spectrum methods, and density estimation where applicable. Quantify uncertainty and discuss measurement limitations. Deliverables will include: Clean waveform and processed data files (CSV or MAT) A concise methods summary covering equipment, settings, and calibration Computed values for velocity, density, attenuation, TOF, and phase angle with units A short uncertainty and limitations discussion Best regards,
₹300,000 INR in 20 days
6.4
6.4
5 freelancers are bidding on average ₹213,000 INR for this job

Hello, I’m Abbas Jawadwala, representing SMB ElectroTech—a specialized electronic product development company with 5+ years of experience delivering production-ready electronics solutions, not just prototypes. Unlike most bids here, we operate as a dedicated engineering team, supporting clients across: Electronics Hardware & PCBs (up to 32 layers) Embedded firmware & RTOS development IoT, cyber-physical systems & smart devices Review, Diagnostics and troubleshooting Our designs are built with manufacturing, reliability, and scalability in mind—backed by collaborations with global component manufacturers. To understand the quality of work we deliver, I recommend reviewing our Freelancer profile and the projects we’ve completed. If this aligns with what you’re looking for, please click the blue “Chat” button to start the conversation—I’d be happy to discuss your project in detail. Best regards, Abbas Jawadwala SMB ElectroTech
₹200,000 INR in 7 days
5.9
5.9

As an Electrical Engineer with a profound fascination for Electronics, I am thrilled about your project on Liquid Ultrasonic Spectroscopy Analysis. Over the course of my career, I have enriched my expertise with valuable experience in pulse-echo and through-transmission setups. FFT-based phase analysis rings a bell to me, as does the crucial process of effective impedance matching. Besides my solid theoretical knowledge, I have also developed hands-on skills in handling and calibrating ultrasonic measurement equipment, giving me a unique perspective on your project's needs. From identifying the perfect transducer to determining fitting path length choices, I have met all sorts of challenges that your project may pose. Given the nature of your request, I assure you that I can deliver precise and dependable results with thoroughness and timeliness in mind. My proposed workflow encompasses meticulous data collection and post-processing techniques, resulting in clean files (CSV or MAT) for waveforms and well-annotated computed values for velocity, density, attenuation, TOF and phase angle, complete with a concise methods summary addressing equipment,set-ups and calibration steps. I will also provide a short yet comprehensive discussion of uncertainty and limitations in our findings to keep you fully informed.
₹150,000 INR in 7 days
2.7
2.7

Hi, I can help you design and execute a repeatable ultrasonic spectroscopy workflow (pulse-echo or through-transmission) to extract TOF, velocity, attenuation, phase angle, and (via mass/volume or vibro-tube input) density, with calibration and uncertainty budgeting. I’ll advise on transducer frequency/aperture, fixture/path length, coupling/impedance matching, pulser/receiver + gain/filtering, and temperature control, then provide a methods summary + clean CSV/MAT exports and computed results with units. If you’ll collect data, I’ll run the full post-processing. Raw requirements: (1) digitized transmit reference + received waveform(s) per sample (time vector + volts), (2) path length and geometry, (3) sampling rate/bit depth, (4) temperature (and stability), (5) calibration runs (e.g., distilled water at known temp, empty cell/baseline), and (6) density input (scale + volume or external densitometer readings). Processing includes gating, cross-correlation TOF, FFT phase extraction, attenuation vs frequency (spectral ratio), and uncertainty from repeatability, path length, temp, and timing jitter.
₹215,000 INR in 7 days
0.0
0.0

VallabhVidyanagar, India
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