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Norsonic Nor848 User Manual

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INSTRUCTION
MANUAL
nor848
ACOUSTIC CAMERA
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Norsonic Nor848 Specifications

General IconGeneral
Operating Temperature-10°C to +50°C
DimensionsDiameter: Varies depending on microphone configuration.
Power SupplyPowered by connected device (e.g., Nor140)
Measurement ParametersSound pressure level, sound intensity
DisplayExternal PC required
Humidity Range10% to 90% RH (non-condensing)

Summary

Introduction to Acoustic Camera Technology

Quick Start Guide for Nor848

Software Installation and Activation

Installing the Acoustic Camera Software

Steps to install the Norsonic Acoustic Camera application on your computer.

Activating the Software License

Instructions for licensing and launching the acoustic camera software for the first time.

Assembling and Setting Up the Acoustic Camera

System Configuration and Network Troubleshooting

Operating System Requirements

Specifies the required OS X version for the Norsonic Acoustic Camera software.

Troubleshooting Network Connectivity

Steps to resolve network connectivity issues between the computer and microphone dish.

Basic Operation and Data Source Selection

Starting the Application and Selecting Data Source

How to launch the application and choose between live camera or recorded files.

Adjusting Display Views and Audio

Beam vs. Single Microphone Audio Selection

Switching between beamformed signal and individual microphone audio for analysis.

Display Settings and Camera Controls

Focal Distance and Temperature Settings

Adjusting focal distance and setting ambient temperature for accurate acoustic analysis.

Optical Camera View Adjustments

Using zoom, pan, and color/monochrome options for the optical camera display.

Frequency Band and Signal Analysis Options

Virtual Microphone and Audio Analysis Tools

Sound Pressure Level and Time Resolution

Interpreting sound levels and configuring time smoothing options for signal averaging.

Frequency Band Selection and Volume Control

Choosing frequency bands for audio output and managing audio volume to prevent clipping.

Detailed Frequency Analysis Techniques

Color Mapping and Frequency Range Selection

Level Chart Color Adjustment

Adjusting the color scale for sound levels using the level selector and histogram.

Frequency Range for Coloring and Analysis

Selecting frequency bands for visual coloring and detailed frequency analysis.

Acoustic Eraser Feature

Spectrogram Analysis Overview

Recording and Replay Operations

Making and Storing Recordings

Steps to start, manage, and store acoustic recordings from the camera.

Replaying and Analyzing Recorded Events

How to select, play, pause, and loop specific parts of recorded acoustic events.

Creating and Exporting Scenes

Reporting and Exporting Analysis Results

Generating PDF Reports

Creating two-page PDF reports with optical images and frequency analysis data.

Exporting Images and Data

Saving visual and graphical analysis data in PNG format.

RPM Measurements and Sensor Connection

Connecting RPM Sensors and Recording Data

Guide for connecting RPM sensors and acquiring related measurement data.

Analyzing RPM Recordings and Selecting Segments

Settings and Order Tracking Analysis

Changing Measurement Settings

Adjusting input signal display ranges for RPM or speed measurements.

Performing Order Tracking Analysis

Analyzing the relationship between RPM and frequency content using spectrograms.

Technical Principles of Operation

Beamforming Techniques Explained

Explains beamforming techniques (DAS, adaptive) used for directional signal reception.

Directional Spatial Response Characteristics

Details spatial response patterns and side lobe behavior at different frequencies.

Measurement Types, Specifications, and Accessories

Narrow and Broadband Measurement Methods

Techniques for broadband and narrowband measurements using DAS and adaptive beamformers.

Frequency Analysis Details

Describes FFT analysis, octave bands, and Hanning windows for signal processing.

Key Technical Specifications

Lists key technical parameters like microphone count, sound level, and operating distance.

Included and Optional Accessories

Details standard accessories and optional items for the acoustic camera system.