DTS SLICE MICRO User Manual Download Page 48

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SLICE Bridge – Sensor Interface

Differential
Instrumentation

Amplifier

Gain 1-128

Multi-function

Summing Amp

(Gain 1 or 10)

Excitation Source

• One per channel

• 5-volts standard
• 20 mA continuous

• Short circuit safe
• ESD Protected

+ex

+sig

-sig

Sensor

-ex

2.5V

DAC used to null
offset. Must zero

to <2% A/D f/s.

16-bit

ADC

Basic Analog Features

1) 0-5 volt Input Rage

2) Gains of 1 to 1,280

3) True Bridge Completion

4) 50KHz Bandwidth (max)

5) ESD and RFI Protection

Prot
ecti
on and

Bridge C

omp
le

tion

Excitation

Check

Circuit

2-pole

50 KHz

Filter

2-pole

50 KHz

Filter

5-pole

50Hz to 40 KHz

Adjustable

Filter

9-poles of Butterworth filtering

Shunt
Check

Circuit

Electronic ID

Interface

+ID

Summary of Contents for SLICE MICRO

Page 2: ...e 15 3 Mounting and Connecting SLICE Hardware 16 3 1 General Connection Guidelines 16 3 2 Guidelines for High Shock and Vibration Testing 16 3 3 SLICE Connectors and Cables 17 3 3 1 SLICE Connectors 1...

Page 3: ...dix B End of Chain EOC Terminal 36 Appendix C SLICE USB Interface 37 Appendix D SLICE Ethernet Interface 39 Appendix E SLICE Grounding Recommendations 41 Appendix F SLICE Bridge Sensor Connections 47...

Page 4: ...duct knowledge and crash test experience to help via telephone e mail or on site visits The best way to contact a DTS support engineer is to submit a request through the DTS Help Center web portal sup...

Page 5: ...sizes SLICE MICRO 42 x 42 mm SLICE NANO 26 x 31 mm They have the exact same function and circuit boards inside SLICE MICRO has built in connectors SLICE NANO has wires with connectors 2 2 SLICE Modul...

Page 6: ...Interface or directly to the PC PC can be disconnected after arming for standalone operation Up to 4 SLICE Stacks can be in any one chain SLICE Distributor not shown allows for up to 4 SLICE chains f...

Page 7: ...Bridge SLICE with integrated 3 axis accelerometer Yes No ARS SLICE Bridge SLICE with integrated 3 axis Angular Rate Sensor Yes No Stack Battery 2 cell LiPo battery connected to bottom of Base SLICE N...

Page 8: ...the product of the sampling rate and the number of available channels in the Stack 7 500 000 000 of seconds Sampling rate sps X of channels in Stack Example 1 10 000 sps using a 9 channel SLICE Stack...

Page 9: ...adjustable gain anti alias filters offset and shunt check TEDS sensor ID A Bridge SLICE MICRO is shown below 2 3 3 IEPE SLICE See Appendix A for detailed specifications Features 3 input channels One...

Page 10: ...axis angular rate sensor The following specifications apply Uses DTS ARS PRO see http dtsweb com products dtsars php Options from 300 to 8000 deg sec DC response 2 3 6 Battery SLICE The Battery SLICE...

Page 11: ...specifications The EOC Terminal provides the easiest method to attach a battery trigger signal and status lamp to the SLICE system It is ruggedized for high shock use Maximum channels 1 chain x 2 Stac...

Page 12: ...four stacks per chain and is designed to integrate in dummy and withstand high shock environments It supports 9 18 VDC input power and back up battery input 2 3 10 SLICE USB Interface See Appendix C...

Page 13: ...LICE Ethernet Interface allows the connection of two SLICE chains It is meant for bench top use and is not ruggedized Maximum channels 2 chains x 3 Stacks x 8 Bridge SLICEs x 3 chan Bridge 144 channel...

Page 14: ...For some bench top units LEMO style as well as industry standard USB Ethernet and SubD connectors are used A typical SLICE rugged plastic connector is shown below 2 4 Batteries DTS offers some commerc...

Page 15: ...and H provide information regarding file formats See the DTS Support site for information on how to update firmware The SLICEWare software application allows for easy Test set up Sensor database manag...

Page 16: ...wood or plastic Refer to proper grounding procedures described in Appendix E Check that all cables show no signs of physical damage Be sure all sensors have their cable shields ungrounded at the senso...

Page 17: ...mon for instrumentation all of these are much too large to be practical for SLICE The SLICE system uses circular plastic connectors manufactured by Omnetics Corporation www omnetics com These connecto...

Page 18: ...connected together via a daisy chain cable SLICE NANO Base units can be connected to each other directly or via a daisy chain extension cable 13000 3005x SLICE MICRO Chain Cable 13000 3006x SLICE NAN...

Page 19: ...or the accessory you are using To calculate the rough power needs for a particular system use the information below POWER REQUIREMENTS 10 V POWER INPUT 5 V SENSOR EXCITATION IDLE RECORDING BASE SLICE...

Page 20: ...ANO are similar The EOC Terminal is a shock rated item Voltage input can be provided via the included power supply a battery or any voltage source between 9 and 15 VDC Warning Do not exceed the 15 VDC...

Page 21: ...e Appendix B for detailed information on the SLICE End of Chain Terminal 3 6 Using the SLICE USB Interface The SLICE USB Interface is designed for bench top non rugged use See the example diagram belo...

Page 22: ...thernet Interface The SLICE Ethernet Interface is similar to the SLICE USB Interface The main difference is that the SLICE Ethernet Interface has an Ethernet connection to the PC instead of a USB conn...

Page 23: ...stributor allows for the connection of up to 4 SLICE chains and converts the communications signals from USB to Ethernet This allows for a longer communi cations cable between the PC and the SLICE sys...

Page 24: ...dge sensor connection to a Bridge SLICE input channel 4 1 Sensor ID Sensor ID is also referred to as electronic ID EID The function of EID is for the SLICE hardware to automatically read and determine...

Page 25: ...l 4 wire or half bridge 2 or 3 wire resistive and piezo resistive types Voltage input Input range 0 1 to 4 9 V larger range with voltage expander circuit Conditioned sensors with 5 V excitation and 2...

Page 26: ...Trigger signal the SLICE autonomously collects data storing it to flash memory with no user interaction After the test the user can reconnect the PC to download the data There is also a real time mode...

Page 27: ...fully armed The unit will continue to record new events until it records the number of events specified by the host software If a trigger signal is received after the unit has re armed the unit will d...

Page 28: ...to charge briefly before system initialization An ON hardware signal is used to initialize the SLICE system be sure to disable the ON signal prior to applying power To initialize SLICE NANO HG systems...

Page 29: ...EVENT signal is received while the unit is recording data the LED will turn red and then turn off when data collection has completed For Circular Buffer Mode o When the unit is armed the LED will go...

Page 30: ...1 to 320 0 5 gain 320 Accuracy 0 5 including reference uncertainty ANALOG TO DIGITAL CONVERSION Type 16 bit SAR Successive Approximation Register ADC one per channel simultaneous sample of all channel...

Page 31: ...nd 4 Status output 5 V via 10K with respect to ground 5 6 7 15 VDC 7 8 12 Ground 9 USB_PWR 10 USB_DP 11 USB_DM Both cables are 10 cm in length UP connector looking into the connector Mating connector...

Page 32: ...ables 6 10 and 14 cm in length Pins 5 6 and 7 are common Pin Function 1 Sig Ch 1 2 ID Ch 1 3 Sig Ch 2 4 Sig Ch 2 5 Sig Ch 1 6 Ex Ch 1 7 Ex Ch 1 8 Ex Ch 2 One connector cable 10 cm in length Pin Functi...

Page 33: ...tal Stack Height mm inch Mounting Screw Length min BH or SHC M2 5 M3 4 40 13 5 0 531 18 mm 3 4 17 5 0 689 22 mm 7 8 19 0 748 25 mm 1 23 0 906 30 mm 1 1 8 24 5 0 965 30 mm 1 1 8 28 5 1 122 35 mm 1 1 4...

Page 34: ...rt contact closure input to ground 3 Event contact closure input to ground 4 Status output 5 V via 10K with respect to ground 5 6 7 15 VDC 7 8 12 Ground 9 USB_PWR 10 USB_DP 11 USB_DM to PC Channels 1...

Page 35: ...40 mm 45 mm 1 3 4 42 1 65 40 mm 50 mm 2 45 1 77 45 mm 50 mm 2 47 1 85 45 mm 55 mm 2 1 4 49 1 93 45 mm 55 mm 2 1 4 52 2 05 50 mm 60 mm 2 1 4 54 2 13 50 mm 60 mm 2 1 2 56 2 21 55 mm 70 mm 2 1 2 59 2 32...

Page 36: ...V logic level output STS to GND Conditioned status output LED direct drive 20 mA LED is on only when SLICE is collecting data EVNT Event input Contact closure EVNT to GND momentary An EVNT signal can...

Page 37: ...93 0158 Diversified Technical Systems Inc All Rights Reserved The SLICE USB Interface connects 1 SLICE system to a PC via USB Correct input power applied SLICE system is on SLICE system is recording d...

Page 38: ...START CC to ground 2 START 2 Status out 3 EVENT 3 EVENT CC to ground 4 STATUS 6 Ground 5 12 6 VDC out 7 Status out 6 12 6 VDC out 8 Ground 7 Ground 8 Ground 9 USB power 10 USB_DP 11 USB_DM 15V IN 12 G...

Page 39: ...cal Systems Inc All Rights Reserved The SLICE Ethernet Interface connects 1 or 2 SLICE systems to a PC via Ethernet Input power is over voltage Correct input power applied System boot up System on All...

Page 40: ...RT CC to ground 2 START 2 Status out 3 EVENT 3 EVENT CC to ground 4 STATUS 6 Ground 5 6 5 15 VDC out 7 Status out 6 6 5 15 VDC out 8 Ground 7 Ground 8 Ground 9 USB power 10 USB_DP 11 USB_DM 15V IN 12...

Page 41: ...APPENDIX E SLICE Grounding Recommendations...

Page 42: ...ower supplies and sensor mounting fixtures whenever possible This is an extremely important step toward ensuring the best performance from your SLICE system Always connect a cable from a good Earth gr...

Page 43: ...ore important than you might think If the Laptop used to communicate with SLICE is powered from a source that has a significantly different ground potential than the SLICE system communication with th...

Page 44: ...r Test Article Sensor SLICE DAS Mounting Plate Sensor Cable Shield NOT connected here Isolated metal structure such as a dummy component SLICE Stack Ground Cable Earth Ground Cable to Earth 2009 2010...

Page 45: ...aided type with a 12 gage equivalent size Ground cables from a test article or vehicle to the SLICE Stack should be braided strap type with a 15 gage equivalent size The cable from a test article or v...

Page 46: ...ompanies are OK Alpha part number 1230 SV005 3 16 wide 15 gage equivalent 3 16 wide 15 gage equivalent Good for SLICE Stack grounding Available from www Digi key com part A1230SV 100 ND Alpha part num...

Page 47: ...APPENDIX F SLICE Bridge Sensor Connections...

Page 48: ...Sensor ex 2 5V DAC used to null offset Must zero to 2 A D f s 16 bit ADC Basic Analog Features 1 0 5 volt Input Rage 2 Gains of 1 to 1 280 3 True Bridge Completion 4 50KHz Bandwidth max 5 ESD and RFI...

Page 49: ...ction 3 1 2 6 7 5 4 EX SIG SIG ID Internal to SLICE Bridge ex sig sig ex Sensor Bridge Amplifier Electronic ID Interface Excitation 5 volts 20 mA EX 3K 3K ID Half Bridge Switch EX EX SIG SIG ID ID Shi...

Page 50: ...e Connection 350 0 1 350 Gage 3 1 2 6 7 5 4 EX ID Internal to SLICE Bridge Electronic ID Interface Excitation 5 volts 20 mA EX 3K 3K ID Half Bridge Switch EX EX SIG SIG ID ID Shield Sensor Side SIG SI...

Page 51: ...e Connection 350 Gage EX EX SIG SIG ID ID Shield 3 1 2 6 7 5 4 EX ID Internal to SLICE Bridge Electronic ID Interface Excitation 5 volts 20 mA EX 3K 3K ID Half Bridge Switch Sensor Side SIG SIG Amplif...

Page 52: ...ronic ID Interface Excitation 5 volts 20 mA EX 3K 3K ID Half Bridge Switch Sensor Side SIG SIG Amplifier 1K 2 5V Example Sensor Settings Half Bridge Mode Proportional to Excitation No Sensitivity 1 00...

Page 53: ...e is 0 5 volts WRT SLICE power ground and Excitation Both sides of input amplifier must be connected either externally or Signal via bridge mode Signal generator must float WRT ground or alternate con...

Page 54: ...p p add 2 5 volts offset to signal Notes SLICE input range is 0 5 volts WRT SLICE power ground and Excitation Both sides of input amplifier must be connected either externally or Signal via bridge mod...

Page 55: ...10K 10K 10K R Resistor Network SLICE Bridge 95 3K Resistance R Approx MAX External Voltage Vmax Sensitivity mV V 49 85 40V R External Voltage 150K 32 26 60V 49 9K 91 07 20V Sensitivity calculation 5...

Page 56: ...provided by the user InlineSerializedData Boolean Guid Windows UUID string A unique identifier assigned to each event Modules Within the Test node will be a list of modules contained within a Modules...

Page 57: ...rigger sample numbers In the circular buffer case there will be one trigger sample number In recorder mode the trigger is optional In the case of multiple event mode there may be more than one trigger...

Page 58: ...esenting to the user If missing this attribute is considered false IsSubsampled Boolean Optional Indicates if the data stored on disk is at a lower sample rate than the original data collection If mis...

Page 59: ...unt test was performed the actual deflection of the shunt TargetShuntDeflectionMv Double Optional If a shunt test was performed the expected shunt deflection MeasuredExcitationVoltage Double Optional...

Page 60: ...t64 Trigger sample number N 42 4 Int32 Pre Test zero level in counts N 46 4 Int32 Pre Test Cal level in counts N 50 8 Double Pre test noise as a percent of FS N 58 4 Int32 Post test zero level in coun...

Page 61: ...IMAL notation The byte numbers are along the left side of the viewer Boxed in white is first the DATA start offset and it can be seen that starting at the byte specified in this offset is the actual s...

Page 62: ...that the file is little endian that is the values are serialized into the file LSB first This is not important but should be considered if changes are to be made to the serialization procedure It must...

Page 63: ...are have defaulted to this because the x86 processor architecture is little endian Take the data offset for example The 8 bytes read E2 00 00 00 00 00 00 00 but this does not mean the data starts at b...

Page 64: ......

Page 65: ...sensing logo Version 1 0f 25 Aug 2011 EK Updated sections 2 3 2 3 1 2 3 3 3 1 3 2 3 3 2 3 4 5 1 5 2 1 and 5 2 2 Removed section 2 3 4 Digital SLICE and any references Updated options for Accel SLICE n...

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