DynaLabs DYN-IS-20 20 N Inertial Shaker User Manual
- June 3, 2024
- Dynalabs
Table of Contents
Model DYN-IS-20
20 N Inertial Shaker
Product Manual
DYN-IS-20 20 N Inertial Shaker
All rights reserved. Reproduction or issue to third parties in any form whatsoever is not permitted without written authority from the proprietors.
Product Support
If at any time you have questions or problems with the DYN-IS-20 shaker,
please contact a Dynalabs engineer at:
Phone: +90 312 266 33 34 (9 a.m. to 5 p.m., UTC +3)
e-mail: info@dynalabs.com.tr
Warranty
Our products are warranted against defective materials and workmanship for one
year. Defects arising from user errors are not covered by the warranty.
Copyright
All copyrights of this manual belonging to DynaLabs products are reserved.
Itcannot be reproduced without written consent.
Disclaimer
Dynalabs Ltd. provides this publication “as is” without warranty of any
kind,express or implied, including but not limited to, the implied warranties
of merchantability or fitness for a particular purpose. This document is
subject tochange without notice, and should not be construed as a commitment
orrepresentation by DynaLabs.
This publication may contain inaccuracies or typographical errors DynaLabs
willperiodically update the material for inclusion in new editions. Changes
andimprovements to the product described in this manual may be made at any
time.
Introduction
The inertial shaker (DYN-IS-20) is used for relatively small structures requiring excitation in low frequency bands. The shaker is directly connected to the structure and the inertia motion of the shaker mass provides the necessary forces to the structure. The shaker has a small, lightweight design that provides high mobility. For this reason, it is suitable for use as a portable shaker.
General Information
2.1) Unpacking and Inspection
DynaLabs products provide adequate protection for undamaged products to be
transported. Document the damages that occur indirectly during the transport
and contact the customer representative. Check all components of the shaker.
If there is a defect, please contact us.
2.2) System Components
DYN-IS-20 has the following components:
-Electrodynamic Shaker Body
– Amplifier (DYN-SA-150)
-Power Adapter
-Signal Cable
-Sensor Mounting Adapter
-Stainless Bolt For Mounting(M3X50)
-User Manual
2.3) Theory of Operation
DYN-IS-20 is an electromagnetic actuator. Electromagnetic actuators are
basically a voice coil consisting of magnet and coil. The moving element can
be a coil or magnet depending on the design requirements. The moving element
is usually suspended by an elastic spring. DYN-IS-20 has a stationary coil
(drive coil) whose current is controlled to produce vibration. The stationary
magnetic field is produced by a magnet.
| Item | Description |
|---|---|
| 1 | Shaker Body (Integrated Cable) |
| 2 | Signal Output |
| 3 | DC Power Input |
| 4 | Sine Freq |
| 5 | Gain Knob |
| 6 | External Signal Input |
| 7 | LCD Display |
2.4) Specifications
| Parameters | Specifications |
|---|---|
| Excitation Type | Vertical or Horizontal |
| Output Force (Sinus) | 20 N |
| Frequency | 10-3000 Hz |
| Displacement (Peak to Peak) | 8 mm |
| Moving Mass | 0.1 kg |
| Shaker Weight | 0.3 kg |
| Suspension | Spring |
| Cooling System | Natural Convection |
| Operating Temperature Range | 5-35 °C |
| Maximum Input Current | 4A (RMS) |
| AMPLIFIER | EXTERNAL |
| Amplifier Weight | 0.65 kg |
| Power Supply Voltage | 19V DC |
| Power Supply Current | 4.74 A |
| External Signal Voltage Level | 1 VAC(PEAK) |
2.5) Outline Drawing
The dimensional properties of DYN-IS-20 shakers are given below. All
dimensions are in mm’s.
Operation and Installation
3.1) General
The general shaker connector configuration is given below.
The Gain Knob is a push-pull and rotational switch. The amplifier is in
External Signal Mode when the Gain Knob is pushed in and the amplifier is in
Internal Signal Mode when it is pulled out.
In order to protect the amplifier from electrical problems, it is advised to
turn the Gain Knob counter clockwise to the lowest gain position before
connecting the external signal cable or before changing operational modes.
3.1.1-) External Signal Mode: Connect DC power source and drive signal to
shaker power input and signal input respectively. Start the external signal
source. Adjust the Gain of the amplifier by turning the Gain Knob clockwise.
3.1.2-) Internal Signal Mode: The amplifier can generate sine signal from
1Hz to 15kHz with 1 Hz increments that the user can adjust with the Sine
Frequency Generator
Switch. Connect DC power source and drive signal to shaker power input. Pull
the Gain Knob out.
Raise or lower the Sine Frequency Generator Switch to the desired Sine frequency. Adjust the Gain of the amplifier by turning the Gain Knob clockwise. The frequency of the generated sine signal will be visible on the LCD Screen.
3.2) Power Requirements
DYN-IS-20 has an external power amplifier which is powered by its power
adaptor. Please note the output voltage and current ratings of the adaptor if
a replacement adaptor is to be used.
3.3) Cooling
DYN-IS-20 does not require forced cooling. Air convection cooling is
sufficient for the force levels given in the specifications.
3.4) Frequency Response
The DYN-IS-20 has a relatively flat force response of 20N. The following
figure shows the Force (Newton) over applied Voltage (Volt) frequency response
of DYN-IS-20.
FOR FIXED FREQUENCY SINE TESTING, APPLICATION OF VOLTAGE LEVELS ABOVE 1V FOR
LONG DURATIONS (>1MIN) CAN PERMANENTLY DAMAGE THE SHAKER.
THE SHAKER SUSPENSION NATURAL FREQUENCY IS ABOUT 25 HZ.
ESPECIALLY FOR FIXED FREQUENCY SINE TESTING, THE USER SHOULD ALWAYS LOWER THE
GAIN FOR THE FREQUENCY BAND OF 5-30 HZ. OTHERWISE, DUE TO THE HIGH RESPONSE OF
THE SHAKER AROUND ITS RESONANCE FREQUENCY, VERY HIGH AMPLITUDES OF VIBRATION
(⁓120N) WILL OCCUR AND PERMANENTLY DAMAGE THE SHAKER.
THE INTERNAL SINE SIGNAL GENERATOR SUPPLIES A CONSTANT VOLTAGE OF 1VAC. PLEASE
LOWER THE GAIN IN THE VICINITY OF THE NATURAL FREQUENCY AS HIGHLIGHTED ABOVE.
3.5) Mounting Interface
Maintenance and Troubleshooting
The DYN-IS-20 shaker is a sealed device requiring no maintenance if the operating instructions described in this manual are followed. Repair of the coil, exciter body or magnet core should not be attempted. Please return the shaker to DynaLabs for proper repair.
Safety
Please ensure that this manual section is reviewed and understood prior to installation, operation or maintenance of the equipment. The danger of electrical shock or fire always exists in electrical equipment. The DYN-IS20 Inertial Shaker is designed for safe operation. Safety features such as electrical insulation on outer surfaces, shaker body grounding connection are provided for safe operation of the shaker system. Always monitor the applied voltage to the amplifier and shut down the shaker if the temperature of the shaker body rises drastically or smoke is observed from the shaker due to high voltage levels applied.