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Table of Contents
Summary of Contents for Norsonic Nor265
- Page 2 Furthermore Norsonic AS assumes no responsibility for any infringement of the intellectual property rights of third parties, wherever applicable, which could result from such use. Norsonic AS reserves the right to amend any of the information given in this manual in order to take account of new developments.
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Page 3: Table Of Contents
Microphone boom ..............................6 2.1.1 Turntable ................................7 Basic concepts ..........................8 Definitions of angles – Home position ........................8 Speed and acceleration ............................9 Sweep..................................10 Assembling the Nor265 ......................11 General..................................11 Microphone Boom option (Option 1) ........................11 Turntable option (Option 2)..........................12 4.3.1 Turntable ................................12 4.3.2 Chuck ................................13... -
Page 5: Introduction
Nor265 User Guide 1 Introduction The Microphone boom/Turntable N o r 2 6 5 may be used as a stand- alone device to obtain the spatial average of sound level by moving a measurement microphone back and forth continuously. Main... -
Page 6: Main Application
Nor265 User Guide 2 Main application Microphone boom A number of applications Average sound level require measurement of the spatial average of the sound is the sound pressure level in pressure level in a room. The microphone position i = 1... -
Page 7: Turntable
Nor265 User Guide Both the electrical and acoustic noise generated by N o r 2 6 5 , even during movement, is very low and allows measurement down to very low levels. The figure shows a typical set-up for N o r 2 6 5 used as a microphone boom. -
Page 8: Basic Concepts
Nor265 User Guide 3 Basic concepts Definitions of angles – Home position When the turntable is switched on, the actual position of the table is set as the reference angle 0°. Rotational angles are defined relative to this angle. Positive angles are counter-clockwise as seen from the top of the table. -
Page 9: Speed And Acceleration
Nor265 User Guide Speed and acceleration The speed and acceleration may be set by the user. The speed is specified as time per revolution (second/revolution). The acceleration is specified as the time (second) it takes to obtain the specified speed. -
Page 10: Sweep
Nor265 User Guide Sweep The sweep time is the total time required to perform a complete sweep back and forth including acceleration and deceleration. See figure below for a sweep from angle A to angle B: -360 Time Sweep time When the sweep is started, the sweep may be described as a consecutive sequence of "Go to A", "Go to B", "Go to A"... -
Page 11: Assembling The Nor265
Nor265 User Guide 4 Assembling the Nor265 General The microphone boom/turntable N o r 2 6 5 can be delivered in three different configurations. The main unit consists of the main body with the shaft for mounting either the boom or the turntable. Accessories... -
Page 12: Turntable Option (Option 2)
Mount the microphone as requested. You may place the normal Norsonic microphone cable such as N o r 1 4 0 8 through the hollow main shaft. -
Page 13: Chuck
Nor265 User Guide 4.3.2 Chuck When delivered, the chuck is mounted on the mounting adaptor. Place the adaptor on the main shaft as far down as possible and secure the fastening Allen-screws. Remote operation (Option 3) Option 3 has to be ordered before delivery and is installed at the factory. -
Page 14: Manual Operation
Nor265 User Guide 5 Manual operation Power N o r 2 6 5 is mains powered and accept mains voltage in the range 90 – 264V AC without any adjustment. The power switch is adjacent to the mains connector. Mains fuses are located behind a cover between the power switch and the mains connector. -
Page 15: Boom Operation
Nor265 User Guide Boom operation Mount N o r 2 6 5 as described in section 4 Assembling the Nor265. Normally the device is mounted in the tripod when used as a microphone boom. Mount the boom with counterweight. Mount the measurement microphone in the end of the rod. -
Page 16: Turntable Operation
Nor265 User Guide combination of the length of the boom and the speed to keep away from this resonance which otherwise may enhance the small vibrations from the motor. Turntable operation Although the N o r 2 6 5 may be manually operated by the switch on the front remote operation is normally required when the device is operated as a turntable. -
Page 17: Control From A Pc Program Nor1029
Nor265 User Guide 6 Control from a PC Program Nor1029 General If N o r 2 6 5 is installed with Option 3 for remote operation, it may be controlled by the accompanying MS-Windows program N o r 1 0 2 9 . -
Page 18: Main Display
Nor265 User Guide Select the appropriate communication port and speed. Note that the default speed (Comm. Setting) in Nor265 is 9600 baud. Press Connect to open the port. When these settings are finished, you may return to the main display. -
Page 19: Local - Remote
Nor265 User Guide 6.3.1 Local – Remote The Microphone boom/ turntable must be in remote operation mode in order to be controlled from the program. Turn the switch on the front of N o r 2 6 5 to position ‘Remote’. If the communication works correctly, the local/remote-indicator on the virtual front panel will indicate remote. -
Page 20: Rotation
Nor265 User Guide Note that a sweep may contain a number of rotations if so specified. 6.3.7 Rotation The mode starts an infinitely long continuous rotation either clockwise or counter-clockwise. 6.3.8 Stop The stop-button stops an ongoing movement. The selected acceleration time is used for the deceleration. -
Page 21: Modifying The User Interface
Nor265 User Guide 7 Modifying the user interface The user interface may be modified by remote commands if N o r 2 6 5 is equipped with the option for remote operation. This means that position 1 to 8 of the rotational switch may be programmed to any of... - Page 22 Nor265 User Guide Alternatively, use the remote commands directly as described in section 8 Remote operation. Start the program N o r 1 0 2 9 and select “Program user interface” in the menu on the main screen. The screen for programming will be displayed as shown above.
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Page 23: Remote Operation
Nor265 User Guide 8 Remote operation The turntable may be remotely controlled by a RS 232 serial interface, (default 9600 baud) with hardware handshake. Commands other than reading status are ignored if the user operation switch is not set to remote. - Page 24 Nor265 User Guide The communication is based on RS232, which allows long cables between the computer and the turntable. Note that the maximum length of cables will depend on the selected baudrate, the type of cable (capacitance) and the device controlling the turntable. It therefore not possible to specify the maximum length, but up to 100 m has been used successfully when combined with the lowest baudrate of 9600.
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Page 25: List Of Commands
Nor265 User Guide 8.2.2 List of commands Instruction Command Parameter Notes Reset None Generates a hardware reset Fetch Status None Transfer format: x y z : w1 w2 w3 w4<CR><LF> x = L : Local operation (Set by user interface) - Page 26 0=9600, 1=19200, Set baud rate 2=38400, Default is 9600. 3=57600, 4=115200 After this command, new SW can be Prepare for SW LSLoadSoftware loaded with a special PC program. download Intended for use by Norsonic only. Norsonic AS...
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Page 27: Lp Command
Instruction Command Parameter Notes Program Flash memory with BFBurnFlash Intended for use by Norsonic only. running SW. Display memory DM x For debugging by Norsonic only. 8.2.3 LP command When the LP command is executed, a list of the parameters associated... -
Page 28: Specification
Nor265 User Guide 9 Specification Size – main body: Diameter 202 mm, Height: 171 mm Weight – main body: 6 kg Mounting: Tripod which allows inclined traverse plane Diameter of tripod mounting stud: 3/8” Main axle dimension: Outer diameter: 30 mm Inner diameter: >... -
Page 29: Technical Design
Nor265 User Guide 10 Technical design The figure below shows a block-diagram of the microphone boom/turntable N o r 2 6 5 . The motor is a stepper motor designed for continuous movement (micro-stepping). A digital signal processor controls the position of the motor shaft directly with a very high resolution. -
Page 31: Declaration Of Conformity
EU - Machine directive This product has been manufactured in compliance with the provisions of the relevant internal Norsonic product standards. All our products are tested individually before they leave the factory. Calibrated equipment – traceable to national and international standards –... - Page 32 Nor265 User Guide P.O.Box 24 N-Lierskogen Norway www.norsonic.com...