Endaq Slam Stick C Manuale utente

User Manual

Slam Stick User Manual Version No. 2.0 1

User Manual

Vibration –Temperature –Pressure

Data Logger

User Manual

Slam Stick User Manual Version No. 2.0 2

Table of Contents

General Information......................................................................................................3

Introduction .................................................................................................................... 4

Overview of Product Suite.............................................................................................. 5

Product Specifications.................................................................................................... 8

Hardware Description..................................................................................................... 8

Ordering and Shipping...................................................................................................11

Quick Start Guide........................................................................................................12

LED Status Indication.................................................................................................13

Pre-Operation ..............................................................................................................15

Transportation and Storage Requirements....................................................................15

Charging Instructions.....................................................................................................16

Battery Level Check ......................................................................................................17

Battery Life & Recording Time Available........................................................................18

Recording File Naming & File Structure.........................................................................19

SD Card & Memory Management..................................................................................19

Slam Stick Lab Installation.............................................................................................20

Slam Stick Lab: Configuration...................................................................................21

General Configuration ...................................................................................................23

Setting Triggers.............................................................................................................26

Disabling Channels........................................................................................................30

User Calibration Configuration.......................................................................................30

Device Information.........................................................................................................33

Update Firmware...........................................................................................................34

Operation.....................................................................................................................35

Operational Environment...............................................................................................35

Mounting Instructions ....................................................................................................36

Calibration.....................................................................................................................38

Recording Data .............................................................................................................38

Slam Stick Lab: Analysis & Exporting Data..............................................................40

Viewing Data.................................................................................................................41

Analysis.........................................................................................................................48

Exporting Data...............................................................................................................53

Post Processing Slam Stick Recording Files ...........................................................57

Command Line Executables for Converting IDE Files ...................................................57

MATLAB Example Functions.........................................................................................62

Python Support Functions .............................................................................................66

Troubleshooting..........................................................................................................71

Product Support ............................................................................................................72

Supporting Information ..............................................................................................71

Component Datasheets.................................................................................................78

Embedded Accelerometer Electrical Noise....................................................................71

Coming Soon.................................................................................................................78

Resources.....................................................................................................................79

User Manual

Slam Stick User Manual Version No. 2.0 3

General Information

This manual, software and the design data which it describes are copyright with all rights

reserved. None of the data may be copied without the express written consent of Midé

Technology Corporation. Refer to Midé Technology Corporation’s full Copyright Policy at

http://www.mide.com/pages/copyright-policy-mide for the full legal terms in regard to this

Midé Technology Corporation warrants that the Slam Stick will be free from defects in

workmanship and materials in normal use and operation within 3 months from date of shipment.

This warranty only applies when the Slam Stick is installed, maintained, and repaired in

accordance with all of the directions, instructions, diagrams, safety warnings, cautions, and other

notices set forth in this manual, and if not damaged by persons, actions, or inactions unrelated

to Midé. In the event of any such defect of which Midé is informed in writing within such 3 month

period, Midé’s sole responsibility is, at Midé’s option, to provide a replacement Slam Stick at no

cost to the Buyer upon the return of the defective product. Requests for compliance with this

express, limited warranty shall be honored only when made by the Buyer. Refer to the Terms and

Conditions at http://www.mide.com/pages/terms-conditions for the full legal terms in regard to

this warranty.

A number of warnings and cautions appear in the text of this technical manual. They are intended

to safeguard personnel and equipment from potential hazards or damage during equipment

installation, operation, and maintenance. These warnings and cautions will be presented in the

following manner.

WARNING: This represents an operating procedure, practice condition, statement, etc.,

which if not strictly observed, could result in injury to personnel or long term health

hazards.

CAUTION: This represents an operating procedure, practice condition, statement, etc.,

which if not strictly observed, could result in damage to, or destruction of, equipment or

a reduction in performance.

NOTE: This represents an important note that addresses questions Midé frequently

fields in regard to the operation and use of these devices.

In addition to the specific warnings and cautions included in this manual, Midé recommends that

all customers install, operate, and maintain the Slam Stick in accordance with general safety

guidelines included in standards published by OSHA.

User Manual

Slam Stick User Manual Version No. 2.0 4

Introduction

The Slam Stick products have been specifically designed as a portable vibration data logging

system without the need to be wired to an external system, for either the purpose of operation

or data recording. Slam Sticks were designed to work in parallel with, or ideally replace, the

cumbersome instrumentation systems typically used to monitor and record shock and vibrations.

These systems require accelerometers hardwired to signal processors and then subsequently to

data acquisition units. A Slam Stick allows the user to capture vibration data without the need

for wires or modification to the vibrating structure. Logged data is easily viewed through Midé’s

software package, Slam Stick Lab. The user can quickly analyze the data and easily determine the

vibration characteristics of the monitored system. A Slam Stick offers significant time savings

opportunity to test engineers over traditional systems. They can also be used for that initial test

of a structure/system to better help an engineer understand what sensors are needed and where

to install them when setting up a traditional wired system.

Configuring, charging, and downloading the data from the Slam Stick to a PC or laptop can be

easily achieved through the use of a micro USB cable (included) and the Slam Stick Lab software

package. The device appears as an ordinary USB thumb drive, enabling “plug-n-play” use

wherever you go –no drivers to install and no special system privileges needed. This software

package allows the user to configure the recorder for different sample rates or triggering modes,

quickly review recorded vibration, temperature, and pressure data, and export recording data to

.CSV (Excel readable) format and to .MAT (MATLAB readable) for use with other analysis

packages. A copy of the User Manual, Data Sheet, Quick Start Guide, and the Slam Stick Lab

software are included on the device for convenience. All units come calibrated and an electronic

PDF copy of the Calibration Certificate is also included on the device.

A Slam Stick can be configured to record immediately, after a user-specified time delay, at a

specific time, or in response to a trigger condition (temperature, pressure, or g-level range). The

recording duration, sampling rate, and antialiasing filter cutoff frequency are all user

configurable.

The Slam Stick’s enclosure was designed to save weight and space so that the device can be

securely mounted through the use of double-sided tape on virtually any vibrating surface. The

enclosure includes one slot so that the Slam Sick can be tied to a nearby structure to act as a

failsafe if it were to ever become dislodged. The enclosure also includes three through holes so

that it can be screwed onto an intended structure.

Midé is continuing to develop and invest in this data logging product line; and we welcome any

feedback and suggestions for future features or variants. We welcome any feedback and have an

online survey where we’d love to hear from you. For more information on the Slam Stick,

products, and a wide range of other products, please go to www.mide.com. Any questions about

Midé’s products can be asked by contacting us online or calling +1 (781) 306-0609.

User Manual

Slam Stick User Manual Version No. 2.0 5

Overview of Product Suite

A Slam Stick is a three axis vibration data logger capable of measuring and recording accelerations

at a very high sampling rate so that the user can perform detailed vibrational analysis. A real time

clock provides time stamps for all data recorded so that comparisons to real-world events can be

made. Pressure and temperature sensors are also included to provide additional environmental

data and triggering capabilities.

Figure 1: The three product variants (Slam Stick C, X, and S) are shown with the major differences highlighted.

User Manual

Slam Stick User Manual Version No. 2.0 6

There are three core product variants shown in Figure 1, the Slam Stick C, X, and S. Each Slam

Stick type has an embedded triaxial accelerometer, temperature sensor, pressure sensor, filters,

battery, storage, and data acquisition electronics.

The differences between the products mainly comes down to the type of accelerometer

embedded in the logger. Each variant comes with a triaxial capacitive MEMS accelerometer (it’s

not standard for the X but available as an add-on). These accelerometers are great for general

purpose testing; but it has some limitations. Specifically, its sample rate (limited to 3,200 samples

per second per axis), resolution, filtering, and noise levels are not good enough for higher-end

engineering applications. But these accelerometers are much lower cost than alternatives and

so Midé is able to offer the Slam Stick C, which only has this type of accelerometer, at a much

lower cost than the X and S.

The Slam Stick X has a triaxial piezoelectric accelerometer in addition to the capacitive DC MEMS

one. This accelerometer offers a higher data quality, wider measurement range options, 5th order

Butterworth anti-aliasing filters, and a maximum sample rate of 20,000 samples per second per

axis. Piezoelectric accelerometers are the most popular because of their versatility but they have

two disadvantages. For one, they are AC coupled which means that it can’t measure static

accelerations (like gravity) and generally can’t measure slow (<2 Hz) vibrations (there are some

types meant for seismic applications that have a lower frequency response). Their charge

amplifier can also become saturated during high frequency and amplitude shock events which

will prevent the accelerometer from measuring anything for a second or two as the amplifier

discharges. Thankfully in the Slam Stick X, having the added triaxial MEMS accelerometer helps

offset these disadvantages of piezoelectric accelerometers.

The Slam Stick S has an added triaxial piezoresistive accelerometer in addition to the capacitive

DC MEMS one. This accelerometer offers similar advantages as the piezoelectric: a higher data

quality, wider measurement range options, 5th order Bessel anti-aliasing filters, and a maximum

sample rate of 20,000 samples per second per axis. But they have the added benefit of being

capable of measuring static accelerations and low frequency vibrations. They also have internal

gas damping to widen the dynamic range of the accelerometer and prevent it from reaching its

internal resonance. These accelerometers are increasingly becoming more popular but they are

relatively expensive, making the Slam Stick S Midé’s most expensive product variant.

For more information on accelerometer types and what’s best for your application refer to Midé’s

blog post on accelerometer selection.

User Manual

Slam Stick User Manual Version No. 2.0 7

Figure 2: Different accelerometer types are recommended for different shock and vibration testing applications.

Refer to Midé’s blog post on accelerometer selection for more information.

Table 1 provides an overview of the differences between the 3 products. The catalog page is

available here with links to each product variant: http://www.mide.com/collections/shock-

vibration-data-loggers

User Manual

Slam Stick User Manual Version No. 2.0 8

Table 1: Slam Stick Product Suite Selection Guide

Specification

Slam Stick C

Slam Stick X -

Plastic

Slam Stick X -

Aluminum

Slam Stick S

MEMS

Accelerometer

±16g or 200g

3,200 Hz | 13 bit

±16g1

3,200 Hz | 13 bit

±16g1

3,200 Hz | 13 bit

±16g

3,200 Hz | 13 bit

Piezoelectric

Accelerometer

±25g, 100g or 500g

20,000 Hz | 16 bit

±25g, 100g, 500g or

2,000g

20,000 Hz | 16 bit

Piezoresistive

Accelerometer

±100g, or 500g

20,000 Hz | 16 bit

Enclosure

Material

Polycarbonate &

ABS Blend

Polycarbonate &

ABS Blend

Anodized Aluminum

7075-T6

Anodized Aluminum

7075-T6

Storage

1 GB or 8 GB

2 GB or 8 GB

Filter

2nd Order Digital

5th Order

Butterworth

5th Order

Butterworth

5th Order Bessel

Added Sensors

Temperature &

Pressure

Temperature &

Pressure

Temperature &

Pressure

Temperature &

Pressure

Advantages

Excellent value

Same ease-of-use

Piezoelectric accel

Frequency >1,000 Hz

Aluminum more robust

Wider frequency range

Piezoresistive accel

Frequency 0->1.5 kHz

Gas damping in accel

Disadvantages

Poorer data quality

More expensive

Most expensive

1The capacitive MEMS (DC Option) does not come standard for the X but available as an add-on

Product Specifications

For a detailed and up-to-date overview of the product’s specifications, please refer to the Slam

Stick’s datasheet available at http://info.mide.com/data-loggers/download-slam-stick-

datasheets-page.

Hardware Description

Every purchase of a Slam Stick includes the data logger, a micro USB cable, three 4-40 bolts, a roll

of double sided tape, and three plastic scraper blades. Table 2 assigns part numbers which will

be referenced throughout this user manual.

User Manual

Slam Stick User Manual Version No. 2.0 9

Table 2: Included Hardware with Each Slam Stick

Description

Part Number

Quantity

Slam Stick Data Logger

LOG-0002/3/4

USB to Micro USB Cable

4868

4-40 Bolts, ¾” Long

96006A217

3M 950 Adhesive Transfer Tape, 1 in x 5 yd

1-5-950

Plastic Scraper Blades

095394100115

Midé recommends that the Slam Stick be mounted with the included 3M 950 adhesive transfer

tape and/or 4-40 bolts. A roll of tape is included with the initial purchase; but additional rolls can

be purchased through a variety of distributors including Amazon and Digi-Key.

The included tape is used for calibration. Calibration is not valid if other tape is used. If

modification to the mounting environment is possible, 4-40 bolts can be utilized along with the

tape. The plastic scraper blades included with each kit are recommended for removing the tape

and cleaning the underside of the Slam Stick. Additional bolts can be purchased through

McMaster-Carr. The part numbers for the tape, bolts, and plastic blades included in Table 2 are

the manufacturer part number used by the distributors.

Figure 3: Slam Stick X package includes the data logger, a micro USB cable, three bolts, a roll of mounting tape, and

three scraper blades for tape removal.

User Manual

Slam Stick User Manual Version No. 2.0 10

Various external features of the Slam Stick are identified in Figure 4. The three mounting holes

are included to use 4-40 bolts to help align the device. The LED indicator is a bi-color LED (green

and red) that is used to present to the user various states of the device. The button is used to

initiate and end recordings and also to manually cycle through programmed triggers. The

coordinate system reference illustrates the axes directions of the device. The tie down slot is

included to use a zip tie or a string of some kind to tether the device to a nearby structure as a

failsafe if it were to become dislodged. The USB receptacle is for a micro USB cable.

Figure 4: The Slam Stick X is shown with various key features identified.

The 3D model of the Slam Stick is also available to download on our website. This model includes

the interior location of major sensors and components.

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