BRUEL & KJAER 4812 User Manual

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Instruction Manual
Vibration Exciter System V
• Exciter Body
Type
4801 with
General Purpose
Head Type
481 2
• High g Head
Type
4811
• Mode Study Head
Type
4814
• Permanent Magnet
Body Type 4805
with Calibration
Head Type 481 5
• Big Table Head
Type
4813
This Vibration Exciter System can be used
over a large range
of conditions for vibra-
tion tests of instruments and structures . It
consists
of two exciter bodies and five exci-
ter Heads.
The
exciter employed is driven by a Power
Amplifier 2707 and can deliver a peak
force
of 380 to 445 N with Body Type
4801 or 267 to 310 N with the Permanent
Magnet Exciter Body Type 4805. The Exci-
ter is protected mecha n ica lIy and electri-
cally. Cooling
of the Exciter is performed by
a
built-in fan in the ca se of the 4801 and
by an externa I
extractor fan (not supplied) in
the case of the 4805 . Any angle of opera-
tion through 360
0
may be chosen, the body
being locked in position by a
handwheel .
~ Bruel & Kjcer
033-0070

BRUEL & KJAER 4812 Specifications

General

Brand	BRUEL & KJAER
Model	4812
Category	Test Equipment
Language	English

Summary

2. Installation

2.1. Mechanical Installation of Exciters Using Type 4801 Body

2.2. Electrical Installation of Exciters Using Type 4801 Body

2.3. Installation of Exciters Using Type 4805 Body

3. Operation

3.2. Selection of Appropriate B & K Exciter Head

Guides users on choosing the correct exciter head for their application.

3.3. Mounting and Removal of Exciter Head

Details the procedure for attaching and detaching exciter heads.

3.6. Mounting the Fixture and Test Object

Covers mounting fixtures and test objects onto the exciter.

3.7. Positioning the Exciter

3.8. Static Load Limitations

Defines limits for static weight that can be placed on the exciter.

3.10. Start-Up Procedure

Provides step-by-step instructions for starting up the exciter system.

6. Description of Exciter Heads

6.1. Heads with Square Tables: Types 4811, 4812, 4813

6.2. The Mode Study Head Type 4814

6.3. The Calibration Head Type 4815

7. Characteristics

7.1. Square Table Heads

7.1.2. Rated Force and Limits

Defines rated force and operational limits.

7.3. Calibration Head Type 4815

8. Care and Maintenance

8.1. Periodic Cleaning

8.2. Care of Exciter Body 4801

Details specific care instructions for the 4801 exciter body.

8.3. Care of Exciter Head

Gives care instructions for the exciter heads.

8.4. Care of Exciter Body 4805

Details specific care instructions for the 4805 exciter body.

9. Specifications

9.1. Exciter Body 4801

9.2. Exciter Body 4805

9.3. Exciter Heads