Hỡnh 4.2-Khảo sỏt ủộ chuyển vị ủiểm ủặt lực cỏnh tay ủũn chuẩn (1000mm x 130mm x 16mm) theo phương X với mức tải 2000Nm
Trường ðại học Nông nghiệp Hà Nội – Luận văn thạc sĩ kỹ thuật... ... 76 Hỡnh 4.3-Khảo sỏt ủộ chuyển vị ủiểm ủặt lực cỏnh tay ủũn chuẩn
(1000mm x 130mm x 16mm) theo phương X với mức tải 2000Nm
Hỡnh 4.4-Khảo sỏt ủộ chuyển vị ủầu mỳt cỏnh tay ủũn chuẩn (1000mm x 130mm x 16mm) theo phương Y với mức tải 2000Nm
Trường ðại học Nông nghiệp Hà Nội – Luận văn thạc sĩ kỹ thuật... ... 77 Hỡnh 4.5-Khảo sỏt phõn bố sức căng trờn cỏnh tay ủũn chuẩn
(1000mm x 130mm x 16mm) với mức tải 2000Nm
Hỡnh 4.6-Khảo sỏt phõn bố ứng suất trờn cỏnh tay ủũn chuẩn (1000mm x 130mm x 16mm) với mức tải 2000Nm
Trường ðại học Nông nghiệp Hà Nội – Luận văn thạc sĩ kỹ thuật... ... 78
B-ðẶC TÍNH KỸ THUẬT CHÍNH CỦA HỆ THIẾT BỊ ðO LƯỜNG ðIỆN TỬ System devices MGCsplit
1-NT650/1-NT651 power packs
Input voltage range, nominal VDC
VDC 10 … 50 12, 24 and 42 (suitable for all common automotive vehicle electrical systems)
Output voltage VDC 28 ± 2%
Max. continuous output current A 3,5
Max. number of connectable
MGCsplit modules - 10 (e.g. 1x SH400CP, 9x SH400 or SH650; one module less, if an ABX22 is connected)
Ride-through start-up Intrusion at > 8.5V NT650 only:
Intrusion at < 8.5V
s (ride-through times without measurement system failure) unlimited min. 10
Voltage discontinuity NT650:
NT651:
s s ms ms
(typical ride-through times without measurement system failure) 10 at full load (100 W) 60
at a load of 1x SH400CP42+ 2x SH650 15 at full load (100 W) 50
at a load of 1x SH400CP42+ 2x SH650 Start from standby mode - Via CAN message and digital control signal Power consumption at
standby mode W <1.2
CAN hardware bus link Baud rate
kBits/s Standard CAN as per ISO11898 250
Electrical isolation of digital input V DC 500, typically Input voltage range of digital input V DC 0 ... 50 Input current of digital input mA < 3
Low level of digital input V < 1
High level of digital input V > 3
Protection against false operation - Sustained short-circuit proof, polarity reversal protection, cutoff at excess temperature
Degree of protection - IP65
Operating temperature range °C -30 ... +70
Nominal temperature range °C -20 ... +60
Permissible relative humidity % 100
Connections - Power supply Split line IN / OUT CAN / digital input
Connection technique Power supply
Split line IN / OUT CAN / digital input
-
ODU Minisnap, series B, design S3, size 2 4-pin, 60° coding (suitable connector for cable mounting
e.g. S32BFC-T04LPH0-6000) 16-pin, no coding (suitable connector for cable mounting
e.g. S32B0C-T16PFG0-7500) 6-pin, 30° coding (suitable connector for cable mounting
e.g. S32BAC-T06MPH0-6000) Weight
NT650 NT651
kg
kg 3.15 2.70
Dimensions (W x H x D) mm 104 x 146 x 205
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HBM B0554-15.0 en
*) See MGCplus system specifications for measurement properties of amplifier modules.
Modules *) 1-SH400 | 1-SH650 1-SH400CP Function Enclosure for one MLxx amplifier and max. two connection
boards (each 4 divs wide)
Enclosure for the communication processor
Degree of protection IP40 IP65 IP40
Operating temperature range °C [°F] -30 ... +70 [-22 ... +158] -30 ... +70 [-22 ... +158] -20 ... +60 [-4 ... +140]
Nominal (rated)
temperature range °C [°F] -20 ... +60 [-4 ... +140]
Permissible relative humidity % 95 at 40 °C [104 °F] 100 95 at 40 °C [104 °F]
Supply voltage V 18 ...32
Connections -
S Split-Line Input/Output S As on the resp. connection
boards
• Split-Line Input/Output
• ODU connectors (Lemo®
compatible)
S Connection for ABX22A S With CP22 and CP42:
100 Mbit-Ethernet; USB;
RS-232-C Weight without amplifier
and connection board, approx.
kg 1.6
Dimensions (W x H x D) mm 104 x 146 x 205
Split-Line
Total length m 25 (from 1-SH400CP through last module)
Max. number of measurement modules
- 16
Baud rate Meas./s 307,200; 4-byte format (like MGCplus)
Bus termination - Connected automatically
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ML38B single-channel amplifier module
*) Factory setting
3) In the event of irradiation in accordance with EN 61326, table 1
Accuracy class 0.00253)
Accuracy % ± (0.0025 of measured value+0.0025 of full scale value) Carrier frequency
Bridge excitation voltage (±5 %) Transducers
Strain gage full bridge
Perm. cable length between transducer and amplifier
V Q m
225.05 ±0.02 5*) 2.5
30...4000; typ. 350 500 max.
Carrier frequency amplifier Measuring
ranges
mV/V mV/V
±0.2...5.1 (VB = 5 V) ±0.4...10.2 (VB = 2.5 V)
±5.1 (VB = 5 V) ± 10.2 (VB = 2.5 V)
Measuring frequency range Butterworth low pass Nominal (rated) value f
Hz Hz Hz
Filter levels
f1
1.0 f2 1.5 f3 2.5 f4 3 f5 5 f6 6 f7
9 f8 10
1.1 1.6 2.3 3.2 4.6 6.3 8.3 10
18.9 21.6 24.5 27.4 30.5 33.8 37.3 41
50 54 57 61 65 68 70 72
1 0.7 0.5 0.37 0.26 0.2 0.16 0.13
2.3 1.6 1.14 0.82 0.58 0.42 0.30 0.23
Bessel low pass Nominal (rated) value f (-3 dB)
Hz Hz Hz
Filter levels
f1 0.03 f2 0.05 f3 0.1 f4 0.2 f5
0.5 f6 0.9
f7 1.5
0.03 0.05 0.1 0.22 0.45 0.9 1.7
0.125 0.25 0.5 1 2 4 8
0.2 0.4 0.8 1.7 3.5 7 14
32 16 8 4 2 1 0.5
48 24 12 6 3 1.5 0.75
1000000
Common-mode rejection Input resistance
Effect of 10 K change in ambient temperature on digital signals S1 (gross) and S2 (net)
Sensitivity Zero point Linearity deviation
Long-term drift over 24 hours
Short-term drift over 5 min, from 2h after switching on Sampling rate
dB
% %
% ppm ppm 1/s
>100 1000
< 0.002 of measured value < 0.001 of full scale value
< 0.002 max. ±20, typ. ±8 max. ± 10, typ. ±3
1.18/2.34/4.69/9.38/18.75/37.5/75
Analog outputs Vo1 and Vo2
Residual carrier voltage Long- term drift (over 48 h)
mVPP
mV
< 3
< 3