Specification DPL-Series Inclinometer Module

Transcription

1 DPL-Series Inclinometer Module Version.9 of 3

2 Contents. History.. General Information Functional Description Part Number Mechanics and Connections Mounting Label information Mechanical data Dimensions Connector Terminal Connections Unit with UART interface Unit with SPI interface Absolute Maximum Ratings Definition of Absolute Maximum Ratings 8 9 Operating Conditions Sensor Characteristics Sensor NS-/DPL-UXD, Outputs UART Sensor NS-/DPL-UXD, Outputs UART Sensor NS-0/DPL-UXG, Outputs UART Sensor NS-/DPL-UXG, Outputs UART Sensor NS-30/DPL-UXN, Outputs UART Step response/filtering NS-/DPL-UXG Interface UART / RS3 Electrical Levels Interface parameter for NS xx/dpl Uxx and NS xx/dpl Rxx Command Reference USER level Command Reference SETUP level SPI Command Reference USER LEVEL Command Reference SETUP LEVEL Test Requirements 00% Series Test Statistical Test 9 9. Qualification Testing Standards of 3

3 Periodical Testing Material Testing 0 EMC 3 Additional Information 3 3 of 3

4 . History Ver. Date Purpose Author Creation for NS-/DPL-UXG K.Schink chapter 7.3: corrections for explanation of filter values, 6 and 7 - additional explanation for forbidden commands - drawing competition K.Schink, M.Zürn Competition/changes DPL-Ux only M.Zürn Remove forbidden commands D.Bieschke Forbidden commands implemented (SC): Special characteristic marks included M. Kalinowski R.Gottfried-G Additional Information s M.Zürn Update Parameter M.Zürn Minor changes R. Stonies Update programmable parameters M.Zürn Updated Temperature Drift Offset section R.Stonies Add options,layout M.Zürn.6 General Information The NS-xx/DPL-xxx is a microcontroller based inclinometer using a biaxial inclination sensor and integrated temperature sensor. It mainly designed for OEM use. All devices are named NSxxDPL in succession.. Functional Description The digitally controlled inclinometer contains: two basic inclination sensor cell based on a conductance measurement principle electronic excitation of the cell readout of the cell signal linearization temperature compensation interface option A: output via UART/TTL-level interface interface option B: output via SPI interface of 3

5 . Part Number These products can be ordered by following part number: type range output supply order number NS-/DPL-UXD - + UART (TTL-level) + VDC +/-0.V G-NSDPL-007 NS-/DPL-SXD - + SPI + VDC +/-0.V G-NSDPL-0 NS-/DPL-UXD - + UART (TTL-level) + VDC +/-0.V G-NSDPL-009 NS-/DPL-SXD - + SPI + VDC +/-0.V G-NSDPL-03 NS-0/DPL-UXG UART (TTL-level) + VDC +/-0.V G-NSDPL-00 NS-0/DPL-SXG SPI + VDC +/-0.V G-NSDPL-06 NS-/DPL-UXG - + UART (TTL-level) + VDC +/-0.V G-NSDPL-003 NS-/DPL-SXG - + SPI + VDC +/-0.V G-NSDPL-07 NS-30/DPL-UXN UART (TTL-level) + VDC +/-0.V G-NSDPL-0 NS-30/DPL-SXN SPI + VDC +/-0.V G-NSDPL-00 of 3

6 3 Mechanics and Connections 3. Mounting This inclinometer is mounted in parallel to the xy-plane, where the base plate is taken as reference. To minimize the mechanical offset, please use the `reference edge of the board (fig. 3.). 3. Label information HW V.6 SW V MEAS NS-/DPL-UXG Fig. 3.: top view, position of cells and labels Parts will be marked with two labels glued on top of the ceramic sensing elements. These labels contain the following information: Model: MEAS version: Serial No.: NS-xx/DPL-xxx internal HW/SW-Versions YYWWNNNNN YYWWNNNNN consists of nine digits. YY shows the year of production (008=08), WW the week of the production and NNNNN the number for identifying. 3.3 Mechanical data Parameter Symbol Conditions Min Weight Dimensions WxDxH Typ Max Unit 0 g x x () 6 of 3 mm

7 3. Dimensions The mechanical dimensions of the board are depicted by fig. 3.. The board is made of FR-Epoxy with a thickness of. +/-0. mm. MEAS SW Vx.x.x HW Vx.x S/N: YYWWNNNNN NS-xx/DPx-xxx reference edge Fig. 3. : Top view, cross sectional and bottom view (top-down) of the board including dimensions and placement of the connector 7 of 3

8 3. Connector The following connector can be used: Molex, Picoflex PF-0 6-Pin Jack ( ). 3.6 Terminal Connections 3.6. Unit with UART interface Pin 3 6 Sensor type NS-xx/DPL-UXX Description Type Positive power supply Supply, Input UART input Input Ground Supply, Input reserved do not connect reserved do not connect UART output Output Name Vcc RxD GND N.C. N.C. TxD 3.6. Unit with SPI interface Sensor type NS-xx/DPL-SXX Description Type Positive power supply Supply, Input SPI data In Input Ground Supply, Input Chip Select, low active Input Clock, rising edge active Input SPI data Out Output Pin 3 6 Name Vcc SIMO GND CS Clk SOMI Absolute Maximum Ratings CAUTION: Exceeding these values may destroy this part! Parameter Symbol Conditions Supply Voltage Storage temperature Operation temperature Maximum angle Vcc Measured versus GND NS-xx/DPL-xxx Min Typ Max Unit V V TST - +8 C Ta C φmax Don t exceed the maximum angle during operation (supply voltage applied). Otherwise there is a risk of irreversible drift. Short one-time overshoots (t<30s) do not affect performance. 8 of

9 . Definition of Absolute Maximum Ratings Absolute maximum ratings are limiting values of permitted operation and should never be exceeded under the worst possible conditions either initially or consequently. If exceeded by even the smallest amount, instantaneous catastrophic failure can occur. And even if the device continues to operate satisfactorily, its life may be considerably shortened. Operation at an absolute maximum rating is permitted (although not desirable even a short test is believed by some to cause incipient failure) but operation at two or more limits (i.e., output current and ambient temperature) almost always means that some other limit has been exceeded (in this instance, probably package power dissipation). In certain ICs that include an internal thermal shutdown, fault conditions will generate higher than permitted (steady-state) temperatures and activate device thermal shutdown circuitry. These fault conditions can be tolerated for short periods of time, but they will affect life expectancy and should be avoided. Except for a maximum output voltage rating (often done as a leakage current test), production testing of the absolute maximum ratings is not usually performed. Operating Conditions Parameter Ambient Temperature Supply Voltage operating range displayed maximum range Supply Current Symbol Conditions Tamb Vcc φop φdisp Min Typ Max Unit C V Measured versus GND Without additional zeroing by the user NS-xx/DPL-UXx NS- /DPL-xxx NS- /DPL-xxx NS-0/DPL-xxx NS-/DPL-xxx NS-30/DPL-xxx Without additional zeroing by the user NS- /DPL-xxx NS- /DPL-xxx NS-0/DPL-xxx NS-/DPL-xxx NS-30/DPL-xxx ma 7 Icc 9 of 3

10 6 Sensor Characteristics (SC): Special characteristic 6. Sensor NS-/DPL-UXD, Outputs UART If not otherwise noted, C ambient temperature, V supply voltage applied. Parameter Symbol Conditions Min Typ Max Unit Resolution Res 0.00 Initial offset φoff,i +/ Temperature φoff,t drift offset () (SC) Ta = 0C +0C Ta3 = -0C +8C Accuracy (absolute incl. φoff,t ) Ta = +C (SC) Ta = 0C +0C Ta3 = -0C +8C Acc Acc Acc %.6 s s /s Cross CCAx, sensitivity () CCAy Settling time ( step) Ts90 Ts99 with default filter settings: to 90% (=final value ±0,) to 99% (=final value ±0,0) Noise RMS output rate typ = default settings, other adjustable 0. () Temperature drift offset is defined in general by: φoff,t = φoff(ta)- φoff(c) () Please note: The offset drift given above is not a relative but an absolute number as the drift is not necessarily a linear function of temperature. In other words: The offset drift specified is the maximum to be observed in the given temperature interval. (3) Cross sensitivity is defined by: CCAx=Sensx(Inclinationy)/Sensx(Inclinationx) CCAy=Sensy(Inclinationx)/Sensy(Inclinationy) 0 of 3

11 6. Sensor NS-/DPL-UXD, Outputs UART If not otherwise noted, C ambient temperature, V supply voltage applied. Parameter Symbol Conditions Min Typ Max Unit Resolution Res 0.00 Initial Offset φoff,i +/-0.08 Temperature drift Offset (3) φoff,t (SC) Ta = 0C +0C Ta3 = -0C +8C Accuracy (absolute incl. φoff,t ) Acc Acc Acc3 Ta = +C (SC) Ta = 0C +0C Ta3 = -0C +8C Cross sensitivity () CCAx, CCAy Settling time ( step) Ts90 Ts99 with default filter settings: to 90% (=final value ±0,) to 99% (=final value ±0,0) Noise RMS output rate typ = default settings, other adjustable %.6 s s /s () Temperature drift offset is defined in general by: φoff,t = φoff(ta)- φoff(c) Please note: The offset drift given above is not a relative but an absolute number as the drift is not necessarily a linear function of temperature. In other words: The offset drift specified is the maximum to be observed in the given temperature interval. () CrossSens is defined by: CCAx=Sensx(Inclinationy)/Sensx(Inclinationx) CCAy=Sensy(Inclinationx)/Sensy(Inclinationy) of 3

12 6.3 Sensor NS-0/DPL-UXG, Outputs UART If not otherwise noted, C ambient temperature, V supply voltage applied. Parameter Symbol Conditions Min Typ Max Resolution Res 0.00 Unit Initial Offset φoff,i +/-0.08 Temperature drift offset () φoff,t (SC) Ta = 0C +0C Ta3 = -C +8C Accuracy (absolute incl. φoff,t ) Acc Acc Acc3 Ta = +C (SC) Ta = 0C +0C Ta3 = -0C +8C Cross sensitivity (6) CCAx, CCAy Settling time ( step) Ts90 Ts99 with default filter settings: to 90% (=final value ±0,) to 99% (=final value ±0,0) Noise RMS output rate typ = default settings, other adjustable %.6 s s /s (6) Temperature drift offset is defined in general by: φoff,t = φoff(ta)- φoff(c) (7) Please note: The offset drift given above is not a relative but an absolute number as the drift is not necessarily a linear function of temperature. In other words: The offset drift specified is the maximum to be observed in the given temperature interval. (8) CrossSens is defined by: CCAx=Sensx(Inclinationy)/Sensx(Inclinationx) CCAy=Sensy(Inclinationx)/Sensy(Inclinationy) of 3

13 6. Sensor NS-/DPL-UXG, Outputs UART If not otherwise noted, C ambient temperature, V supply voltage applied. Parameter Symbol Conditions Min Typ Max Unit Resolution Res 0.00 Initial Offset φoff,i Temperature drift Offset (9) φoff,t +/ (SC) Ta = 0C +0C Ta3 = -0C +8C φ 0 0 < φ Accuracy (absolute incl. φoff,t ) Acc Acc Acc3 Cross sensitivity (8) CCAx, CCAy Settling time ( step) Ts90 Ts99 Ta = +C (SC) Ta = 0C +0C Ta3 = -0C +8C with default filter settings: to 90% (=final value ±0,) to 99% (=final value ±0,0) Noise RMS output rate typ = default settings, other adjustable %.6 s s /s (9) Temperature drift offset is defined in general by: φoff,t = φoff(ta)- φoff(c) (0)Please note: The offset drift given above is not a relative but an absolute number as the drift is not necessarily a linear function of temperature. In other words: The offset drift specified is the maximum to be observed in the given temperature interval. ()CrossSens is defined by: CCAx=Sensx(Inclinationy)/Sensx(Inclinationx) CCAy=Sensy(Inclinationx)/Sensy(Inclinationy) 3 of 3

14 6. Sensor NS-30/DPL-UXN, Outputs UART If not otherwise noted, C ambient temperature, V supply voltage applied. Parameter Symbol Conditions Min Typ Max Unit Resolution Res 0.00 Initial Offset φoff,i Temperature drift Offset (9) φoff,t +/ (SC) Ta = 0C +0C Ta3 = -0C +8C φ 0 0 < φ Accuracy (absolute incl. φoff,t ) Acc Acc Acc3 Cross sensitivity (0) CCAx, CCAy Settling time ( step) Ts90 Ts99 Ta = +C (SC) Ta = 0C +0C Ta3 = -0C +8C with default filter settings: to 90% (=final value ±0,) to 99% (=final value ±0,0) Noise RMS output rate typ = default settings, other adjustable % s s /s ()Temperature drift offset is defined in general by: φoff,t = φoff(ta)- φoff(c) (3)Please note: The offset drift given above is not a relative but an absolute number as the drift is not necessarily a linear function of temperature. In other words: The offset drift specified is the maximum to be observed in the given temperature interval. () CrossSens is defined by: CCAx=Sensx(Inclinationy)/Sensx(Inclinationx) CCAy=Sensy(Inclinationx)/Sensy(Inclinationy) of 3

15 6.. Step response/filtering NS-/DPL-UXG Step response NS-/DPL-UXG, fast change from angle to angle 0, at Ta=C Measured at output rate Hz*. 6 Step response NS-/DPL UXG, ->0 at T=C φ filter= filter= filter= filter=6 filter= s s s 3s s s Fig. 6..: step response of NS-/DPL UXG, -> Ta=C *For filter settings see command M f in chapter 7.. Command reference setup level of 3 t 6s

16 7 Interface The NS-xx/DPL is available with UART, RS3 and SPI interface. 7. UART / RS3 A standardized UART/RS3 interface is used in duplex mode. UART output uses inverted CMOS/TTL levels. After startup the sensor transmits the angle values in degrees () continuously. 7.. Electrical Levels RS3: PARAMETER MAX TYP( ) MIN UNIT DOUT at RL = 3 kω to GND, DIN = GND DOUT at RL = 3 kω to GND, DIN = VCC VI = VCC VI at 0 V V V µa µa Vcc =. V, VO = 0 V 60 ±0 60 ma Vcc, V+, and V = 0 V, VO = ± V 300 TEST VOH High-level output voltage VOL Low-level output voltage IIH High-level input current IIL Low-level input current ( ) IOS Short-circuit output current O Output resistance CONDITIONS Ω ( ) TA = C. ( ) Short-circuit durations should be controlled to prevent exceeding the device absolute power-dissipation ratings, and no more than one output 7.. Interface parameter for NS xx/dpl Uxx and NS xx/dpl Rxx Baud rate: 9600 Baud Format: ASCII, 8 data bits, stop bit, no parity String length: Byte Layout: < D0... D> D0... D0 D... D = X=±xx.xxx, <CR>, <LF> = Y=±xx.xxx, <CR>, <LF> Example: X= Y= of 3 with D = sign (+ or -), D = decimal point with D3= sign (+ or -), D6 = decimal point

17 7..3 Command Reference USER level Default after power on or software reset. Commands in user level Stop continuous output of inclination values Input Output Comment s s Start continuous output of values S Version and serial number Read one value V Activate setup level f i m a X=+0.3, CR, LF, Y= , CR, LF, X= DPL V.8.0, CR, LF, SN:36789, CR, LF, X=+0.3, CR, LF, Y= , CR, LF, f i m a any other no reaction Stops the continuous output of angle results or raw values, required for input of commands, terminated by S or reset or power on, mode temporary Starts the continuous output of angle results or raw values, mode temporary Output of SW-Version and serial number, use in stopped mode only Output of complete string, x-value and y-value, only in stopped mode Activate the setup level, chapter 7... Setup level can be deactivated by sending K or resetting with q. The controller automatically exits this level after about 0 minutes of user inactivity with a reset. No reaction for commands from setup level R 7.. Command Reference SETUP level Setup level will be used for permanent settings, stored. Commands in setup level Input Output Stop continuous output of inclination values c Start continuous output of values C Set zero N N Setback zero Set low pass filter n M, f n M, f Set output rate O, o O, o Comment This level will be terminated (reset) automatically after about 0 minutes of user inactivity. Stops the continuous output of angle results or raw values, required for input of commands, terminated by C, mode permanent, query with R, see chapter Starts the continuous output of angle results or raw values, mode permanent, valid after reset. Define 0 position. Offset is stored and used even after reset. Resets the offset displacement Input filter settings with count f = , other characters were answered with E, see item ) below. Set Output rate with count o =... 6, other characters were answered with E, see item ) below. c 7 of 3

18 Commands in setup level Show internal settings Input Output Comment * O3 M3, CR, LF OffX= OffY= , CR, LF Erase Cycl SegF: +00, CR, LF Show currently temperature [C] T T= 00.00, CR,LF Software reset Erase both Info segments, (switch to default settings) Forbidden command q E" q Seg A deleted, CR, LF Seg B deleted, CR, LF # # O3 : internal setting of output rate in 0ms, M3 : internal filter setting; both values => default settings Off.. : stored Offset values Erase Cycl Seg : active Segment and number of erasure procedures for this segment Readout the currently temperature in C. Usable at > software version.0.. Without sign, positive temperature. With sign `- `, negative temperature. Reset the sensor Erases the info segments of flash storage banks, InfoA and InfoB. This set all changed user values to default settings Reserved for factory communication ) Set low pass filter exponential, with count f = 0 : Out value = current value : Out value = (current value + old out value) / : Out value = (current value + 3 * old out value) / 3 : Out value = (current value + 7 * old out value) /8 : Out value = (current value + * old out value) /6 : Out value = (current value + 3 * old out value) /3, default 6 : Out value = (current value + 63 * old out value) /6 7 : Out value = (current value + 7 * old out value) /8 8..9: reserved, undefined. Above calculation was made every 0ms. For example of time response see chapter 6..: Step response NS-/DPL-UXG ) Set output rate (strings per second, string contains x and y-value) with count o = : 0ms (==Hz) : 00ms (==0Hz), default 3 : 0ms (==Hz), : 00ms (==Hz) : 000ms (==Hz) 6 : 000ms (==0,Hz) 0, 7, 8, 9 : not defined 8 of 3

19 7. SPI Interface parameter for NS xx/dpl Sxx, supply voltage.0v: Baud rate: max. kbaud PARAMETER TEST VOH High-level output voltage VOL Low-level output voltage IIH High-level input current DOUT at RL = 3 k DOUT at RL = 3 k VI = VCC IIL Low-level input current VI at 0 V IOS ( ) O Short-circuit output current Output resistance CONDITIONS to GND, DIN = GND to GND, DIN = VCC MAX V TYP 9 of UNIT. 0 V V µa Vcc =. V, VO = 0 V Vcc, V+, and V = 0 V, VO = ± V MIN ± µa ma Ω

20 7.. Command Reference USER LEVEL At this level the system starts. It is allowed to read tilt and temperature values. Instruction Byte Read inclination SIMO (to the sensor) 03H... 06H Read serial number 3 Read Temperature H 66H 69H 6DH 6H Setup Level SOMI (from the sensor) 03H first character, second character 7th character, 06H MSB X-axis LSB X-axis MSB Y-axis LSB X-axis,, 0H, MSB Temperature, LSB Temperature, 66H 69H 6DH 6H 0 of 3 explanation Send serial number i ASCII format Value in m as signed integer, MSB first, with 80 = negative overflow 7F = positive overflow C68H = -000 => - 00 = 0 => 0 3A99H = +00 => +.00 Output of actual temperature in tenth of degrees. Example for valid value: 03H = 309 => 30.9C Activate setup level

21 7.. Command Reference SETUP LEVEL This level will be terminated automatically after about 0 minutes of user inactivity with a reset. Instruction Byte Set offset 3 3 Reset offset RESET Read Filter parameter Set Filter parameter 3 3 SIMO (to the sensor) 0H 0H AAH 0H H xxh Delay > 0 ms SOMI (from the sensor) 0H () 0H () AAH,, 0H, Filter Parameter,,, H, Filter Parameter, of 3 explanation Define 0 position. Offset is stored and used even after reset. Set the offset angle to factory value. Reset the system and return to command level. Read parameter 0H 07H. Factory setting: 0H. Set parameter 0HH 07H. Factory setting: 0H.

22 8 Test Requirements 8. 00% Series Test 00% of delivered parts are measured at 3 inclinations each (x-axis and y-axis) in order to determine corresponding values for Acc, CCAx and CCAy at a distinct temperature in the range of 8C to 30C. 8. Statistical Test Four (two) parts of each fabrication lot between and 60 ( and 0) are tested at five temperatures: -C, 0C, C, 0C, 8C Measured, respectively calculated and checked are: Tφoff, Acc, Acc3 9 Qualification Testing 9. Standards The sensor NS-xx/DPL(N)-xxx complies with: IEC/EN High Temperature Storage Ta= 8C, medium : air, 000h IEC/EN High Humidity Ta= 8C, RH= 8%, 000h IEC/EN Mechanical shock test A=30g, t=ms, halfsine, 0 cycles per axis IEC/EN Vibration loading 0 to 0 Hz,.mm amplitude, g const. acceleration, octave/minute, 0 cycles per axis IEC/EN Thermo shock THigh=8C,TLow=-0C,medium:air-air,Tdwell: min, Tchange: 30sec,00 cycles 9. Periodical Testing The periodical testing is done every 3 years in terms of a product audit. 9.3 Material Testing All materials used in the process will be released by checking the corresponding supplier certificates when available. A regular material analysis from an independent laboratory will not be scheduled. of 3

23 0 EMC Due to the use of these modules for OEM application no CE declaration is done. Especially line coupled disturbances like surge, burst, r.f. etc. cannot be removed by the module due to the small board area and low price feature. There is no protection circuit against reverse polarity or over voltage implemented. The module will be designed using capacitors for blocking and ground plane areas in order to prevent wireless coupled disturbances as good as possible. Additional Information The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. 3 of 3

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