HomeCompany InfoPanel PCEmbeddedIndustr PCSensorsPackagingCodingBiscuit DroppingValvesSoftwareSolar HeatingWeighing SystemsPLC'sLabelingFunrniture PackerRice Cake Machinery

 

 

 

Company Info 
Panel PC 
Embedded 
Industr PC 
Sensors 
Packaging 
Coding 
Biscuit Dropping 
Valves 
Software 
Solar Heating 
Weighing Systems 
PLC's 
Labeling 
Funrniture Packer 
Rice Cake Machinery 

RIDDER'S

Terlicht 45

9451 Kerksken

Belgium 

phone: 00-32-53-833512

fax: 00-32-53-840994

e-mail

ridders.pack@pandora.be

embedded_1_1.gif

The right support and after sales service. This is what we give you day after day and this 24/24 and 7/7

 

You can ask your questions direct by using ICQ when we are online. Our ICQ number is 163202313.

 If you do not have ICQ, please download it for free at www.icq.com

 

What is the SAFE Dragsled?

 

SAFE is a new, high tech device for measuring the coefficient of friction of surfaces.

 

How does SAFE work?

 

SAFE is pulled along a surface. As it is pulled, the device takes many tension samples (up to 500 / second). The coefficient of friction is then calculated automatically by comparing the average pull force divided by the weight of the device.

 

What is the technology behind safe?

 

Safe has essentially 3 components. The steel body, a Palm PoweredT PDA, and an electronic loadcell. The PDA communicates with the electronic loadcell via an infra red signal. (Please use the links at the top of the page to explore more of what SAFE is.)

 

Who uses SAFE?

  • Law enforcement officials
  • Crime scene investigators
  • Airport authority personel
  • Teachers
  •  

Why is SAFE right for you?

 

  • Lowcost
  • Very rugged
  • Highly repeatable
  • Totally configurable to your requirements
  •  

How do I purchase a SAFE-Dragsled?

send us an e-mail info@ridders.com

 

Features and Benefits
 
 
  • No more awkward 1/2 tires full of concrete to lug around.
  • No more trying to read a spring scale while pulling the tire along the surface.
  • SAFE is a fully automated data aquisition device.
  • SAFE is very easy to use.
  • SAFE can be used in any weather condition.
  • SAFE weighs approximately 35lbs, the ideal weight for friction dragsleds.
  • SAFE requires a small surface for proper usage. As little as 18" of pull is enough for accurate friction calculations.
  • SAFE is a total friction measurement solution.
  • SAFE is very slim and can be packed in a very small area. Pelican protective carrying cases are available.
  • The PalmT handheld software for SAFE is very easy to use and has a wide range of features to help you with the job at hand - measuring friction.
  • The data connection between the PDA and the dragsled utilizes an infra red signal, this means no messy wires to connect or have wear out. Simply slip the PDA into it's custom fit cavity, and start the dragsled program.

  • The Dragsled uses 4 AAA batteries, and has a battery life in excess of 100 hours of operating time. The dragsled unit has no on/off button and goes to sleep when not in use.
  • The dragsled comes with a 1/2" thick rubber base that is nearly identical to regular tire rubber. Groves are machined into the rubber to maximize surface pressure and aid in water and debris runoff.
  • The pull handle of SAFE is high grip foam rubber. The handle is connected to the dragsled by 1/4" aircraft cable. The cable is swedgelocked into the body of the dragsled, ensuring a long life.
  • A fully environmentally sealed S-beam loadcell is used. This is a very accurate loadcell for tension applications.
  • The dragsled electronics are fully sealed. The dragsled can be washed down with low pressure water.
  • SAFE is easily configurable, and can be recalibrated in the field in 3 easy steps.
  • The loadcell has a 2 year warranty.
  • Because the PDA software is written for PalmOS devices, you may be able to use your existing Palm rather than buying a new one.
  • The PDA can easily be taken off SAFE and used for other things.
  • The center of gravity of SAFE is very low to the ground, eliminating 'chatter' while in motion.
  • SAFE is a professional device, intended for professional use.
  • Syncronizing SAFE with your computer is as easy as performing a Palm Hot-Synch operation.
  • The desktop software is easy to use and generates professional reports.
System Components
 

The following is an exploded view of the SAFE Dragsled.

Software
 

SAFE devices have software specially designed for the PDA device (sample accumulator), as well as PC software (friction evaluation). The function of the PDA software is to communicate with and store information from the dragsled device (loadcell). The purpose of PC software is to download the PDA information and create printable reports of the data. This type of archetecture allows the user to take litterally 1000's of complete data captures in the field, and be able to review them in comfort back at the office.

The handheld software also serves as an friction meter. It immediately shows the results of the friction tests. You don't need a desktop computer to benefit from this system. A full database navigation service is built into the program. You are able to manage the entire database directly from the PDA. Take as much or as little control over the database as you want.

The Desktop software is designed for easy analysis of the obtained data, and professional report printing. You are able to view all of the databases from your PDA since the last HotSync® operation. A simple navigation screen allows you to scroll through thousands of data sets with ease. You can plot custom peak lines, and choose your own colors. Add your own custom header graphic for further customization. See the screen shots below.


SAFE Handheld® Software

The following are screen shots of the PDA screens.

Taking a Friction Sample

The user inserts the PDA into the dragsled and turns it on. On the main 'Applications' menu, the user taps the dragsled icon to start the program. The PDA will automatically connect to the dragsled within a few seconds. Once the initialization of the units is complete, a current force reading is shown on the main screen.

You are now able to take a friction reading by tapping the 'Start Sample' button, then smoothly pulling the dragsled. The PDA emits a tone, when the tone stops, you can stop pulling the dragsled and wait for the results of the test to be calculated. The software will ask for a sample name for the test, then will ask if you would like to save the raw data. (This data is used to generate graphs in the SAFE Desktop program.) Within a few seconds, the dragsled is ready for another sample. This whole cycle will take at the longest 30 seconds.

Calibrating the Loadcell

The loadcell is easily calibrated using the software. Simple tap the menu option 'Calibrate Loadcell'. You are asked to remove all force from the loadcell. (ie leave the dragsled sitting on level ground) You are then asked to hang the dragsled from a steady object and input the weight of the sled. (We weigh each sled and attach a sticker so that you know what the actual weight of the sled is.) This is all that needs to be done.

Data Management

You have full control over the data on your PDA. You can view and delete data at will.

Sample Length

It is recommended that for an accurate test, the sample length be at least 3 seconds (the amount of time you must pull the dragsled). This can be configured from the settings screen. You choose how many samples you want to recieve, then at what interval these samples should be taken to come up with a total sample length. Large numbers of samples take longer to transfer from the dragsled to the PDA. (this is a limit of the 115kb/s IrDA transfer rate) It also takes longer to calculate the COF. You can configure this to meet your needs.

Other

Some commony used formulas have also been built into the program. You can solve for any variable on these screens. A sketchpad has also been included.

SAFE Dragsled Desktop® Software

(currently compatible with Win98, NT, 2k, XP)

This program makes reviewing your data from the field a snap. Just do a HotSync® between the PDA and your computer to transfer the data, then open Dragsled Desktop.

Use the graph report to prove that the pull was steady, and no large peaks or valleys are effecting the reported friction value. Use multipe graphs to confirm that the data taken at a particular site is consistent.

You can archive your data in standard text files, or export it to MS Excel.

Download the trial version to see how it works! (coming soon)

Technical Specifications

Dimensional Drawing:

Loadcell Specifications:

  • Capacity: 50 lbs
  • Safe Overload 150 %
  • Full Scale Output 3 mv/v ± 0.25%
  • Maximum Excitation 15 volts DC
  • Non- Linearity < 0.03 % FS
  • Hystersis < 0.02 % FS
  • Non Repeatability < 0.01 % FS
  • Thermal Sensitivity Shift 0.0008% of reading /deg. F
  • Thermal Zero Shift 0.0015% FS/deg. F
  • Barometric Effect NIL
  • Bridge Resistance 350 ohms

PDA Requirements:

If you choose not to purchase a new PDA with your SAFE Dragsled, you will need a PDA with the following specs:

  • Palm PoweredT OS 4 or better (Pocket PC devices will be supported in the near future)
  • IrDA port
  • 100k free space for the SAFE Handheld® software.
  • At least 100k for database space. (The more memory, the more complete sets of samples can be stored)
  • We currently recommend the Sony Clie SJ22 (color) or the Palm Zire (monochrome)

PC Requirements:

If you want to download and review your field data on your laptop or desktop, you will need a computer with the following specs:

  • Win98, NT, 2k, XP operating system
  • 1 USB port for you PDA to connect to
  • Pentium 233
  • 16 meg of Ram
  • Color printer for printing reports

Hardware Configuration:

Dimensional Drawing:

Loadcell Specifications:

  • Capacity: 50 lbs
  • Safe Overload 150 %
  • Full Scale Output 3 mv/v ± 0.25%
  • Maximum Excitation 15 volts DC
  • Non- Linearity < 0.03 % FS
  • Hystersis < 0.02 % FS
  • Non Repeatability < 0.01 % FS
  • Thermal Sensitivity Shift 0.0008% of reading /deg. F
  • Thermal Zero Shift 0.0015% FS/deg. F
  • Barometric Effect NIL
  • Bridge Resistance 350 ohms

 

PDA Requirements:

If you choose not to purchase a new PDA with your SAFE Dragsled, you will need a PDA with the following specs:

  • Palm PoweredT OS 4 or better (Pocket PC devices will be supported in the near future)
  • IrDA port
  • 100k free space for the SAFE Handheld® software.
  • At least 100k for database space. (The more memory, the more complete sets of samples can be stored)
  • We currently recommend the Sony Clie SJ22 (color) or the Palm Zire (monochrome)

 

PC Requirements:

If you want to download and review your field data on your laptop or desktop, you will need a computer with the following specs:

  • Win98, NT, 2k, XP operating system
  • 1 USB port for you PDA to connect to
  • Pentium 233
  • 16 meg of Ram
  • Color printer for printing reports

Hardware Configuration:

Overall System Specs:

  • Total Weight: Approximately 35 lbs
  • Finish: 2 coats of industrial enamel - your choice of color
  • Rubber skid pad: 1/2" automotive rubber (.6 - .7 durometer)  

What Comes with your SAFE Dragsled?

  • Fully assembled and tested dragsled (loadcell, electronics, batteries, pull handle)
  • Optional PDA Sony Clie SJ22 or Palm Zire and all that they come with (software, charger, carrying case, USB cable, ect)
  • SAFE Desktop and handheld software on CD ROM
  • User Manual  

Additional Components

  • 24 ga steel skid pad cover
  • Fiberglass skid pad cover
  • Pelican carrying case for all components (manuals, software, chargers, ect)

 

HomeCompany InfoPanel PCEmbeddedIndustr PCSensorsPackagingCodingBiscuit DroppingValvesSoftwareSolar HeatingWeighing SystemsPLC'sLabelingFunrniture PackerRice Cake Machinery

Copyright(c) 2002-2003 Ridder's. All rights reserved.
ridders.pack@pandora.be

Retro jordans for sale, Cheap foamposites, jordan retro 5, cheap jordans for sale, foamposites For Sale, jordan retro 12, jordan retro 11, Cheap jordans for sale, jordans for cheap, jordan retro 11 legend blue, retro 12 jordans, cheap soccer jerseys, Canada Goose sale, cheap jordans