VibMeasure vs Pagecrisp

Floor Vibration Velocity Analysis is a tool that uses the iPhone's built-in sensors for vibration measurement and spectrum analysis. It's suitable for initial on-site observation, floor vibration trend checking, and daily measurement record organization. The app automatically analyzes Z-axis acceleration data after measurement, providing time-domain waveforms, dominant frequency, frequency band dominant frequency, fixed bandwidth velocity spectrum, 1/3 Octave velocity RMS, and overall velocity RMS, helping users quickly understand vibration characteristics. Measurement results can also be exported as a CSV file for easy subsequent organization and comparison. Main Functions: Displays real-time Z-axis acceleration values Customizes sampling rate and high-pass cutoff frequency Automatically performs spectrum analysis after recording Displays full-frequency peak and dominant frequency within a specified frequency band Displays overall velocity RMS Displays fixed bandwidth velocity spectrum Displays 1/3 Octave velocity RMS Exports measurement data as a CSV file Suitable Use Cases: Initial measurement of floor micro-vibration Observation of vibration during indoor equipment operation Comparison of repeated measurements at the same location Quick on-site inspection and record organization

Turn separate scans into a navigable document packet. Choose saved PDFs, arrange sections and build a separate PDF with a cover, linked contents page and section bookmarks. HOW IT WORKS 1. Open the library → Build document packet. Enter a packet title and add saved PDFs. 2. Edit section titles and use Edit to reorder or remove sections. 3. Build the packet and review the total page count and PDF preview. 4. Export the packet PDF or share an assembly receipt with input and output hashes. The source scans remain unchanged. 5. Changing the title or sections clears the frozen result. Build again to refresh it. Use the existing camera, import, OCR and local PDF-library tools to prepare source documents, then assemble a packet for handoff without altering those originals. WHAT TO KNOW Up to 16 documents, 200 source pages, 50 MB per input and 100 MB combined. Encrypted or copying-restricted PDFs are rejected. Existing text and page orientation are preserved, but image-only pages do not gain OCR from packet assembly. Newly generated contents links and section bookmarks target the packet; verify pre-existing source links separately. The packet is exported as a separate file and is not automatically added to the scan library. Built for iPhone and iPad. No account required for this workflow.