MTG300A MEMS Gyro

 

 

 

Satellite stabilization thiab tswj tus cwj pwm

 

 

Lub MTG300A MEMS peb-axis gyro sib dhos yog siab- kev ntseeg tau, tus nqi- zoo 3-axis MEMS gyro los ua ke, muaj feem xyuam rau kev taw qhia thiab tswj thaj chaw qis - mus rau - nruab nrab ntiaj teb orbit satellites. Kev sib dhos ua ke sib koom ua ke siab -kev ua tau zoo MEMS gyroscopes hauv ib lub vaj tsev nyob sab nraud. Cov tsim-hauv gyroscopes txais yuav domestically manufactured MEMS inertial sensor technology mus txog qib siab kev lag luam.Qhov peb -axis MEMS gyroscope paub lub angular motion ntawm cov cab kuj. Tag nrho - kub them rau Bias, qhov ntsuas qhov ntsuas thiab tsis yog- kev ua yuam kev orthogonality yog siv nyob rau hauv lub kaw lus, ua kom muaj kev ntsuas qhov raug siab thaum lub sijhawm ua haujlwm ntev.

 

 

Lub tuam txhab yog ib lub tuam txhab ua haujlwm siab - thev naus laus zis nrog kev kaw tag nrho- lub peev xwm los ntawm fiber ntau winding rau FOGs, fiber ntau / MEMS inertial cov khoom, IMU circuits, software, thiab cov khoom siv kuaj. Xaus-rau- kev tswj cov txheej txheem kawg txhim kho kom zoo thiab txo cov nqi. Ua haujlwm raws li ISO9001, nws ua kom muaj kev ntseeg siab thiab sib xws. INS ua lub luag haujlwm tseem ceeb hauv kev txawj ntse thee mining, nrog FOG ua lub luag haujlwm tseem ceeb.The MTG300A MEMS peb-axis gyro los ua ke siv cov khoom siv txhuas aluminium alloy vaj tse, featuring lub teeb yuag, siab lub zog, thiab zoo heev kev co & poob siab.

 

 

Parameter	Technical Index
Gyroscope
Kev ntsuas ntau (degree / s)	±100
Tag nrho -Tsub Bias (degree /h)	Tsawg dua los yog sib npaug li 5
Bias Stability (℃/ h, 10s qhov rais nruab nrab)	Tsawg dua los yog sib npaug li 0.1
Bias Stability (degree / h, 100s qhov rais nruab nrab)	Tsawg dua los yog sib npaug li 0.05
Bias Instability (degree / h, Allan variance method, raug)	Tsawg dua lossis sib npaug li 0.02
Bias Repeatability (degree / h)	Tsawg dua los yog sib npaug li 0.1
Angular Random Taug kev (degree / √h)	Tsawg dua los yog sib npaug li 0.005
g-Dependent Drift (degree /h/g)	Tsawg dua los yog sib npaug li 0.5
Scale Factor Nonlinearity (ppm)	Tsawg dua los yog sib npaug li 150
Bandwidth (Hz)	Ntau dua lossis sib npaug li 12
Hluav taws xob & Mechanical Interfaces
Cov khoom siv hluav taws xob (V)	5 ~ 12 (ripple Tsawg dua lossis sib npaug rau 100 mV)
Kev siv hluav taws xob (W)	Tsawg dua los yog sib npaug li 1.5
Startup Sijhawm (s)	Tsawg dua los yog sib npaug 2
Kev sib txuas lus Interface	1 channel RS-422
Cov ntaub ntawv hloov tshiab tus nqi	Kev xaiv tsa cov lus teb tawm, max . 200 Hz
Zuag qhia tag nrho Dimension (mm × mm × mm)	44.8×38.6×21.5
Qhov hnyav (g)	Tsawg dua los yog sib npaug li 60
Kev ua haujlwm ib puag ncig
Ua haujlwm kub (degree)	-40 ~ 85
Cia kub (degree)	-55 ~ 85
Kev vibration	7.72g (RMS)
poob siab	500 g / 1 ms mem tes

 

 

 

 

Cov khoom luv luv

MTG300A MEMS peb-axis gyro sib dhos yog siab- kev ntseeg tau, tus nqi- zoo 3-axis MEMS gyro los ua ke, muaj feem xyuam rau kev taw qhia thiab tswj thaj chaw qis - mus rau - nruab nrab ntiaj teb orbit satellites. MTG300A series MEMS peb-axis gyro sib dhos ua ke ua ke siab -Kev ua tau zoo MEMS gyroscopes hauv ib lub vaj tsev tsis muaj zog. Cov ua tau -hauv gyroscopes txais yuav domestically manufactured MEMS inertial sensor technology mus txog qib siab kev lag luam. Tag nrho cov khoom siv hluav taws xob hauv lub cev yog 100% hauv tsev. Qhov peb -axis MEMS gyroscope hnov ​​​​lub kaum sab xis ntawm tus cab kuj. Tag nrho - kub them rau Bias, qhov ntsuas qhov ntsuas thiab tsis yog- orthogonality yuam kev yog siv nyob rau hauv lub kaw lus, ua kom muaj kev ntsuas qhov tseeb thaum lub sijhawm ua haujlwm ntev.

 

Khoom nta

• 100% cov khoom siv hluav taws xob hauv tsev
• Compact qauv, lub teeb yuag thiab tsawg zog noj
• Tag nrho - ntsuas kub thiab nyiaj them txij li -40℃mus rau +80 degree
• 2 kHz siab -kev ntsuas ceev
• Kev tiv thaiv zoo heev rau cov khoom siv hluav taws xob hnyav
• Kev them nyiaj yug rau hauv - teb software upgrade

 

Daim ntawv thov teb

• Satellite stabilization thiab tswj tus cwj pwm

 

 

Table 1 Performance Parameters of MTG300A MEMS Peb-Axis Gyro Assembly

Parameter	Technical Index
Gyroscope
Kev ntsuas ntau (degree / s)	±100
Tag nrho -Tsub Bias (degree /h)	Tsawg dua los yog sib npaug li 5
Bias Stability (℃/ h, 10s qhov rais nruab nrab)	Tsawg dua los yog sib npaug li 0.1
Bias Stability (degree / h, 100s qhov rais nruab nrab)	Tsawg dua los yog sib npaug li 0.05
Bias Instability (degree / h, Allan variance method, raug)	Tsawg dua lossis sib npaug li 0.02
Bias Repeatability (degree / h)	Tsawg dua los yog sib npaug li 0.1
Angular Random Taug kev (degree / √h)	Tsawg dua los yog sib npaug li 0.005
g-Dependent Drift (degree /h/g)	Tsawg dua los yog sib npaug li 0.5
Scale Factor Nonlinearity (ppm)	Tsawg dua los yog sib npaug li 150
Bandwidth (Hz)	Ntau dua lossis sib npaug li 12
Hluav taws xob & Mechanical Interfaces
Cov khoom siv hluav taws xob (V)	5 ~ 12 (ripple Tsawg dua lossis sib npaug rau 100 mV)
Kev siv hluav taws xob (W)	Tsawg dua los yog sib npaug li 1.5
Startup Sijhawm (s)	Tsawg dua los yog sib npaug 2
Kev sib txuas lus Interface	1 channel RS-422
Cov ntaub ntawv hloov tshiab tus nqi	Kev xaiv tsa cov lus teb tawm, max . 200 Hz
Zuag qhia tag nrho Dimension (mm × mm × mm)	44.8×38.6×21.5
Qhov hnyav (g)	Tsawg dua los yog sib npaug li 60
Kev ua haujlwm ib puag ncig
Ua haujlwm kub (degree)	-40 ~ 85
Cia kub (degree)	-55 ~ 85
Kev vibration	7.72g (RMS)
poob siab	500 g / 1 ms mem tes

 

 

Cov yam ntxwv zoo

Lub MTG300A MEMS peb-axis gyro sib dhos txais yuav aluminium alloy txhua yam vaj tse, featuring lub teeb yuag, siab structural zog, thiab zoo heev vibration & shock resistance. Daim duab qhia qhov ntev ntawm chav tsev yog qhia hauv daim duab 1, thiab chav tsev yog tsau nrog 3 M4 screws.

Daim duab 1 Daim Dimensions

 

Khoom cim thiab kev sib koom tes polarity

Thaum lub sij hawm installation, lub carrier coordinate system ntawm cov khoom yuav tsum muaj ib tug taag geometric kev sib raug zoo nrog lub carrier coordinate system ntawm lub party khoom. Cov cab kuj tswj qhov system txhais ntawm MTG300A MEMS peb -axis gyro los ua ke yog teev raws li hauv qab no.

 

Daim duab 2 Product Coordinate System

 

Pin Assignment

Sab nraud tso zis connector ntawm MTG300A MEMS peb -axis gyro los ua ke yog J30J-15ZK (mating connector: J30J-15TJL), uas muab lub zog mov thiab kev sib txuas lus sab nraud rau chav tsev. Cov lus txhais tus pin ntawm lub connector yog teev nyob rau hauv Table 2.

Table 2 Sab Nraud Pin Assignment ntawm MTG300A MEMS Peb -Axis Gyro Assembly Connector

Pin No.	Txhais	Lus hais
7, 8	POWER_IN	5 ± 0.2V fais fab mov
15	GND
10	RS422 R +	RS422 interface
2	RS422 R -
9	RS422 T +
1	RS422 T -
3, 12, 13	GND

Tom qab cov khoom siv hluav taws xob poob qis hauv qab lub cuab yeej ua haujlwm, lub zog -tawm tuav lub sijhawm t_OFF ua ntej rov- lub hwj chim yuav tsum tsis pub tsawg dua 3 vib nas this. Lub hwj chim tsis txaus- lub sijhawm tawm yuav ua rau muaj qhov pib tsis zoo, latch- nce lossis pib ua tsis tiav ntawm lub cuab yeej.

Kev sib txuas lus sab nraud

3.4.1 WXGYRO-EB90 raws tu qauv

Data Link Layer

Kev xa mus ua raws li UART Idle-Kab hom, thiab cov qauv ntawm SCI tsheb npav tau txhais raws li hauv qab no. Lub hauv paus kis tau tus mob yog ib tug cim, nrog rau 11 khoom ib tug cim.

Daim duab 3 Data Transmission Format

 

Nyob rau hauv Idle-Kab kis hom, txhua tus ncej nyob 1 byte thiab tag nrho cov thav ntawv raug kho raws li cov ntaub ntawv. Ib qho SCI cov ntaub ntawv yog 1 byte (8 ntsis). Lub tsheb npav tseem muaj logic siab thaum lub xeev tsis ua haujlwm. Tag nrho cov SCI thav duab pib nrog lub logic- qis pib me ntsis, ua raws li cov ntaub ntawv kab lus xa nrog Tsawg Tsawg Qhov Tseem Ceeb Ua Ntej (LSB First). Cov lus qhia ntxaws ntxaws:

• Pib me ntsis: 1 ntsis
• Cov ntaub ntawv cov khoom: 8 ntsis (b0 ~ b7)
• Nres me ntsis: 1 ntsis
• Parity me ntsis: Odd parity
• Baud tus nqi: 115200 bps
• Rau ntau-byte kis tau tus mob, siab byte kis ua ntej rau qis byte los ntawm lub neej ntawd.

 

Daim Ntawv Thov Txheej

Tib Unit Telemetry Data Format

Ib chav tsev telemetry cov ntaub ntawv yog cov ntaub ntawv teb ntawm txhua feem / module tom qab tau txais telemetry thov commands los ntawm On-Board Computer (OBC). Cov ncauj lus kom ntxaws muaj nyob rau hauv cov lus hauv qab no.

Table 4 Tib Unit Telemetry Data Format

Byte Index	Txhais	Kev piav qhia
B0, B1	Ncej Header	Tus nqi tas li: 0xEB90
B2, B3	Payload Length	Nco tseg 1
B4	Telemetry Data Classification ID	Nco tseg 2
B5	Telemetry Request Counter	Nco tseg 3
B6	Valid Command Counter	Nco tseg 4
B7	Invalid Command Counter	Nco tseg 5
B8	Qhov kawg Executed Command Code	Nco tseg 6
B9 ~ B(N-1)	Tus neeg siv -Defined Payload	Nco tseg 7
BN	Checksum	Nco tseg 8
Nco tseg: Lub rooj sib txoos gyro tsuas yog txhawb nqa cov lus thov telemetry yam tsis muaj lwm yam kev tswj hwm, yog li Bytes B6, B7, B8 yuav tsum tau ntim nrog 0xFF.

 

• Nco tseg 1: Payload Length. Tag nrho byte suav suav txij li Telemetry Data Classification ID (include) mus rau Checksum (include).
• Nco tseg 2: Telemetry Data Classification ID. Yuav tsum ua raws li qhov sib thooj hauv cov lus thov telemetry.
• Ceeb Toom 3: Telemetry Request Command Counter. 1 unsigned byte, increments by 1 thaum tau txais qhov sib phim telemetry thov ncej xa los ntawm OBC.
• Ceeb Toom 4: Siv tau cov lus txib Counter. 1 unsigned byte, nce los ntawm 1 thaum tau txais cov lus txib ua tiav tsis suav nrog telemetry thov thav ntawv (validated los ntawm checksum). Sau nrog 0xFF rau chav nyob yam tsis muaj chaw taws teeb tswj cov lus txib.
• Faj seeb 5: Invalid Command Counter . 1 unsigned byte, suav cov ntaub ntawv tau txais txawv txav nrog rau cov kab lus tsis ncaj ncees lawm header, checksum yuam kev, unrecognized command code, thiab lwm yam. Sau nrog 0xFF rau units tsis muaj tej thaj chaw deb tswj commands.
• Faj seeb 6: Cov Cai Ua Haujlwm Tseeb Kawg . 1 tsis tau kos npe byte, sau cov lej ntawm cov lus txib tshiab kawg (tsis suav nrog kev thov telemetry thiab tshaj tawm xov xwm). Daim teb no tau hloov kho tam sim ntawd tom qab qhov kev lees paub dhau los (tsis yog tom qab kev ua tiav tiav). Yog hais tias qhov kev lees paub tsis ua tiav, qhov yuam kev yuav tsum raug qhia los ntawm Invalid Command Counter hauv tus neeg siv -txhais payload; sau nrog 0xFF rau chav nyob yam tsis muaj cov chaw taws teeb tswj cov lus txib.
• Ceeb Toom 7: Tus neeg siv -Defined Payload. Bytes B9 ~ B(N-1), customizable raws li tus neeg siv yuav tsum tau.
• Lus Cim 8: Checksum. Unsigned cumulative sum ntawm tag nrho cov bytes (B0+B1+B2+…+B(N-1)), khaws cov qis 8 ntsis rau cov byte no.

Cov ntaub ntawv teb telemetry yuav tsum tso tawm tsis pub dhau 2 ms tom qab tau txais cov lus txib telemetry; txwv tsis pub, kev sib txuas lus yuav raug txiav txim raws li lub sijhawm.

 

Tib Unit Telecommand Format

Telemetry Request Command

Qhov kev thov telemetry yog cov ntaub ntawv xa los ntawm OBC kom tau txais cov pob ntawv telemetry los ntawm txhua chav, xa ib zaug ib zaug los ntawm lub neej ntawd. Sib cais cov qauv zaus tau teev tseg rau cov pob ntawv telemetry xav tau cov nqi tshwj xeeb. Daim ntawv thov telemetry muaj nyob hauv qab no.

Table 5 Telemetry Request Data Format

B0	B1	B2	B3	B4	B5	B6	B7
EB	90	TMT	00	00	00	00	SUM

Telemetry Data Classification ID (TMT): txheeb xyuas cov ntaub ntawv xa rov qab telemetry. Teem rau 0xFF yog tias tsuas muaj ib hom telemetry muaj. Rau ntau hom telemetry: Hom 1=0xFF, Hom 2=0xFE, Hom 3=0xFD, thiab lwm yam. Daim teb no nyob rau hauv telemetry teb thav duab yuav tsum phim cov teb sib xws hauv telemetry thov thav ntawv rau txhua hom telemetry.

SUM: Checksum. Unsigned summulative sum ntawm B0 ~ B6, khaws qhov qis 8 khoom rau cov byte no.

Nco tseg: Byte B2 yog tsau li 0xFF.

 

Tib Unit Telemetry Response Data

Thaum tau txais ib daim ntawv thov telemetry, cov ntaub ntawv telemetry yuav tsum raug xa mus rau hauv hom ntawv teev tseg hauv qab no:

Table 6 Gyro Output Telemetry Data

Byte Index	Txhais	Kev piav qhia
B0, B1	Ncej Header	Tus nqi tas li: 0xEB90
B2, B3	Payload Length	0x0024
B4	Telemetry Data Classification ID	0 xf
B5	Telemetry Request Counter	Kev nce ntxiv los ntawm 1 thaum tau txais telemetry hais kom ua
B6	Valid Command Counter	Kev nce ntxiv los ntawm 1 thaum tau txais xov tooj siv tau
B7	Invalid Command Counter	Kev nce ntxiv los ntawm 1 thaum tau txais kev sib txuas lus yuam kev
B8	Qhov kawg Executed Command Code	Hais kom ua code ntawm qhov tseeb ua tiav telecommand
B9~B12	X-Axis Gyro Data	Chav tsev:℃/s, ntsuas qhov ntsuas=1 × 10⁻⁵, ntau yam: -500 ~ 500
B13~B16	Y-Axis Gyro Data
B17~B20	Z-Axis Gyro Data
B21~B22	X-Axis Gyro Kub	Chav tsev: degree, scale factor=1 × 10⁻², range: -128 ~ 128
B23~B24	Y-Axis Gyro Kub
B25~B26	Z-Axis Gyro Kub
B27~B30	Status Word	Cov ntaub ntawv hom: uint32
B31~B34	Ncua tseg teb
B35~B38	Lub sijhawm ua haujlwm	Lub zog ntaus ntawv- ntawm lub sijhawm ua haujlwm, chav tsev: ms
B39	Checksum	Tsawg dua 8 khoom ntawm cov lej suav ntawm bytes B0 rau B38

 

Cov khoom ua haujlwm ceev faj

• Ua raws li cov khoom siv hluav taws xob ntawm tus pin nruj me ntsis thaum xaim kom tsis txhob muaj kev sib txuas tsis raug.
• Cov khoom no yog ib tug precision inertial ntsuas ntaus ntawv. Tsis txhob muaj kev sib tsoo, kev sib tsoo thiab cov khoom siv kho tshuab ntau tshaj nws qhov kev kam rau siab thaum tuav.
• Mounting flatness imposes tseem ceeb cuam tshuam rau angular ntsuas ntsuas. Lub siab -flatness mounting dav hlau yuav tsum tau tshem tawm cov installation misalignment yuam kev.
• Mount cov khoom kom ruaj khov thiab ntseeg tau los tiv thaiv kev ntsuas qhov yuam kev vim los ntawm xoob installation.
• Siv tshuaj tiv thaiv- tiv thaiv zoo li qub thaum lub sijhawm teeb tsa thiab ua haujlwm; anti- zoo li qub dab teg pluaj yog pom zoo.
• Ua haujlwm nruj me ntsis raws li cov lus qhia tshwj xeeb ntawm phau ntawv no thiab xyuas kom meej tias cov xwm txheej puag ncig zoo sib xws rau kev ua haujlwm. Tsis txhob disassemble lub vaj tse los yog hloov cov qauv sab hauv yog tias muaj teeb meem tshwm sim. Hu rau peb cov kws tshaj lij kev pabcuam kev pabcuam sai rau kev daws teebmeem.

 

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