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Olympus MultiScan MS 5800 [21/160] Introduction
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DMTA053-01EN, Rev. D, July 2017
Introduction 15
Introduction
The Olympus MultiScan MS5800 is a portable multitechnology NDT (nondestructive
testing) instrument that is suitable for a number of applications, such as: tube
inspection, weld inspection, and corrosion mapping.
The system may combine any of the following NDT technologies: eddy current
testing (ECT), remote field testing (RFT), magnetic flux leakage (MFL), and ultrasonic
testing (UT). Each one of the technologies offered provides unique capabilities and
superior performance.
The MS5800 may also be used with probe pushers and scanners for automated
inspections. The two built-in encoder inputs record the probe position, for accurate
location of detected flaws.
Acquisition and analysis are both performed from a standard computer using
Olympus MultiView software. This software allows for high volume data storage on
any PC-compatible media.
Содержание
- Dmta053 01en rev d july 2017 1
- Multiscan ms5800 1
- User s manual 1
- Important information please read before use 3 3
- Instrument overview 19 3
- Introduction 15 3
- Labels and symbols 1 3
- Ms5800 features 17 3
- Table of contents 3
- Instrument installation 27 4
- Operation overview 33 4
- Theory of operation electromagnetic techniques 41 4
- Maintenance and troubleshooting 89 5
- Specifications 95 5
- Technical references 105 5
- Theory of operation encoder inputs 85 5
- Theory of operation ultrasound techniques 69 5
- Failure messages 135 6
- Index 145 6
- List of figures 141 6
- List of tables 143 6
- Labels and symbols 7
- Important information please read before use 9
- Instruction manual 9
- Intended use 9
- Instrument compatibility 10
- Repair and modification 10
- Presence of visual interferences or phantom spots 11
- Safety signal words 11
- Safety symbols 11
- Note signal words 12
- General warnings 13
- Safety 13
- Warnings 13
- Electrical warnings 14
- Equipment disposal 14
- Electrostatic discharge precautions 15
- China rohs 16
- Weee directive 16
- Emc directive compliance 17
- Important information please read before use 11 17
- Korea communications commission kcc 17
- This equipment generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference the ms5800 has been tested and found to comply with the limits for an industrial device in accordance with the specifications of the emc directive 17
- 中国 rohs 标识是根据 电器电子产品有害物质限制使用管理办 法 以及 电子电气产品有害物质限制使用标识要求 的规定 适 用于在中国销售的电气电子产品上的电气电子产品有害物质限制使 用标识 17
- 注意 电气电子产品有害物质限制使用标识内的数字为在正常的使 用条件下有害物质不会泄漏的年限 不是保证产品功能性的年限 17
- 이 기기는 업무용 환경에서 사용할 목적으로 적합성평가를 받은 기기로서 가정용 환 경에서 사용하는 경우 전파간섭의 우려가 있습니다 17
- Fcc usa compliance 18
- Ices 001 canada compliance 18
- Warranty information 18
- Technical support 19
- Introduction 21
- Ms 5800 features 23
- Ms5800 features 23
- Chapter 1 18 24
- Eddy current 24
- Figure 1 1 ms5800 ndt applications 24
- Multiscan ms 5800 24
- Remote field flux leakage 24
- This manual describes the utilization of the ms5800 without external synchronization if the system is synchronized by another computer functioning details will be determined by the specific synchronization mode 24
- Ultrasound 24
- Instrument overview 25
- Possible configurations of the ms 5800 25
- Possible configurations of the ms5800 25
- Front panel 26
- Permanent elements 27
- Elements associated with the ect option 29
- Elements associated with the rft mfl option 29
- Elements associated with the ut option 29
- Ms 5800 packaging 30
- Ms5800 packaging 30
- Carrying handle 31
- Instrument installation 33
- Standard equipment and options 33
- Installation procedure 34
- To install the ms5800 34
- Connection procedure 35
- To connect the ms5800 35
- Starting multiview 36
- To start up multiview 37
- Ms 5800 environment 39
- Ms5800 environment 39
- Operation overview 39
- Control and analysis station 40
- Ms5800 40
- Drive unit 41
- Fast ethernet link 41
- Ms 5800 functions 41
- Ms5800 functions 41
- Circuit description 42
- Electromagnetic acquisition board 42
- Electromagnetic acquisition unit 42
- Electromagnetic generator board 42
- Current source control 43
- Injectors ec1 ec2 rf1 and rf2 43
- Probe interface module pim board 43
- Ultrasound acquisition unit 43
- Acquisition and processing board 44
- Pulser receiver board 44
- Interconnection board 45
- Mim hub board 45
- Acquisition triggered by an external clock signal 47
- Acquisition triggered by an internal clock signal 47
- Acquisition triggering modes 47
- Theory of operation electromagnetic techniques 47
- Continuous mode 48
- Excitation modes 48
- Frequency multiplexing mode 49
- Super multiplexed mode 51
- Comparative summary of excitation modes 52
- Multigenerator operation 53
- Reference coil elimination 54
- Increasing probe spatial resolution 56
- Excitation of differential probes 59
- A wiring diagram of the differential probe 60
- Absolute measures 60
- B erroneous eddy current signal obtained with a subtractive flux differential probe 60
- Chapter 5 54 60
- Differential measures 60
- Differential probe 60
- Dmta053 01en rev d july 2017 60
- Figure 5 10 conventional excitation of a differential probe 60
- A wiring diagram of the differential probe 61
- Absolute measures 61
- B eddy current signal obtained with a subtractive flux differential probe 61
- Differential measures 61
- Differential probe 61
- Dmta053 01en rev d july 2017 61
- Figure 5 11 excitation of a subtractive flux probe with two inverted signals 61
- Fortunately the ms5800 overcomes this problem by using two injectors that provide inverted signals out of phase by 180 to produce additive flux in differential probes figure 5 11 a shows the wiring diagram used and figure 5 11 b the eddy current signal obtained in absolute mode under the conditions previously described 61
- Theory of operation electromagnetic techniques 55 61
- Probe overexcitation 62
- Optimization of signal to noise ratio 63
- Excitation amplitude and amplification gain setting 64
- To adjust excitation amplitudes and amplification circuit gains 64
- Electronic probe balancing 65
- To perform probe balancing 65
- Digital filters 66
- To quickly estimate signal bandwidth at the probe amplifier output 67
- Time interpolation of eddy current signals 68
- A sampled channels not shifted b shifted sampled channels 69
- Dmta053 01en rev d july 2017 69
- Figure 5 16 residual signal obtained when combining eddy current channels 69
- Figure 5 17 a shows the eddy current signal of a defect obtained when combining two channels that were sampled simultaneously figure 5 17 b shows this signal when the two combined channels were sampled successively with a sampling delay of 1 ms between channels in this case the distortion of the eddy current signal is obvious 69
- Theory of operation electromagnetic techniques 63 69
- A sampled channels not shifted b shifted sampled channels 70
- Chapter 5 64 70
- Dmta053 01en rev d july 2017 70
- Figure 5 17 signal obtained when combining eddy current channels 70
- Figure 5 18 a shows a residual parasitic signal obtained when combining two simultaneously sampled acquisition channels 70
- In context switching mode there is no delay between the sampling of signals generated within the same time slot because they are sampled simultaneously however a delay elapses between the sampling of two successive time slots 70
- The ms5800 is provided with an interpolation function that estimates the eddy current channel voltages that would have been measured if the channels had been sampled simultaneously this function estimates the eddy current signal voltage at a given instant using voltages measured at sampling points immediately preceding and following the interpolated point the interpolation is linear and uses two known values 70
- A without delay b with a 1 ms delay c with interpolation 71
- Dmta053 01en rev d july 2017 71
- Figure 5 18 b shows this signal when two combined channels were sampled successively with a sampling delay of 1 ms between channels the residual signal is greater because sampled signals are time shifted figure 5 18 c shows the attenuation effect of interpolation on the residual signal level 71
- Figure 5 18 effect of interpolation on a parasitic residual signal 71
- Figure 5 19 a shows examples of eddy current signal obtained when combining two simultaneously sampled acquisition channels 71
- Figure 5 19 effect of interpolation on an eddy current signal 71
- Theory of operation electromagnetic techniques 65 71
- Continuous mode 72
- Selection of frequencies 72
- Super multiplexed mode 73
- Theory of operation ultrasound techniques 75
- Channel 76
- Chapter 6 70 76
- Description of the acquisition chain 76
- Dmta053 01en rev d july 2017 76
- Figure 6 1 rf chain on an ms5800 76
- P r board 76
- This section provides a description of the acquisition chain 76
- Analog signal rf 78
- Bits ascan 78
- Chapter 6 72 78
- Dmta053 01en rev d july 2017 78
- Figure 6 2 digital processing 78
- Next the analog signal goes through the 12 bit digitizer at 100 mhz 78
- Once the digitizing completed the signal is processed by the field programmable gate array fpga figure 6 2 shows the principal processes 78
- A scan 79
- A scan video 79
- Description of the ms 5800 ultrasound data 79
- Description of the ms5800 ultrasound data 79
- Synchronization modes 79
- Multipeak 80
- Remanence 80
- C scan 82
- Averaging 83
- Digital smoothing 83
- Real time processing 83
- Rectification 83
- Compression by n 85
- Acquisition rate information 87
- Acquisition rate 88
- Context length 88
- A cycle of data is produced after a pace signal the pace signal can be produced 89
- Acquisition time 20 µs 2000 samples with 100 mhz 1000 samples with 50 mhz 500 samples with 25 mhz 89
- As this formula shows to obtain maximum speed performances it is better to use a digitizing frequency of 50 mhz even if it means compressing the data by n afterward 89
- Averaging 4 89
- Connector 89
- In multiview software the context length is indicated in the recurrence text box context length 1 recurrence 89
- Input and output data 89
- On encoder 89
- On the external clock in this case the signal comes from the pace pin of the 89
- On the internal clock timer 89
- Table 6 example of context length calculation 89
- The embedded software of the ms5800 calculates the context length the formula shown earlier indicates the minimum time but the user can increase this period for example in order to avoid phantom echoes when there are many contexts the next context is not fired as long as the time of the previous context has not expired 89
- Theory of operation ultrasound techniques 83 89
- Digital position encoders 91
- Theory of operation encoder inputs 91
- Chapter 7 86 92
- Clk dir counter 92
- Counter output value 92
- Dmta053 01en rev d july 2017 92
- Figure 7 1 quadrature counter timing diagram 92
- This type of counter is used with position encoders providing clock and direction signals or clock signal only the counter is clocked by each positive transition of the clock signal the counting direction is controlled by the logic level of the direction signal as shown in figure 7 2 when this signal logic level is low the counter counts up when the logic level is high the counter counts down if the encoder provides a clock signal only the counting direction may be software controlled through the setup dialog box in this case the counter may be configured into a clk up or a clk down counter the counter output data is stored in memory with a 32 bit format 92
- Dmta053 01en rev d july 2017 93
- Figure 7 2 clk dir counter timing diagram 93
- Theory of operation encoder inputs 87 93
- Maintenance and troubleshooting 95
- Preventive maintenance 95
- Instrument cleaning 96
- Maintenance of the fan filter 96
- To clean the instrument 96
- To change the fan filter 97
- To clean the fan filter 97
- Troubleshooting 98
- Changing the fuse 99
- To change the fuse 99
- Environmental conditions 101
- General specifications 101
- Power requirements 101
- Specifications 101
- System 101
- Encoder specifications 102
- Encoders 102
- Ethernet cable 102
- Housing 102
- Alarms 103
- Auxiliary inputs 103
- Auxiliary outputs 103
- Acquisition channels 104
- Coil drive signals 104
- Eddy current option ect 104
- Electromagnetic board options 104
- Acquisition channels 105
- Coil drive signals 105
- Remote field option rft 105
- Acquisition channels 106
- Magnetic flux leakage option mfl 106
- Pulser 107
- Ultrasound option ut 107
- Digitizer 108
- Receiver 108
- Data type 109
- Signal to noise ratio full scale 109
- General connectors 111
- Technical references 111
- Connectors 112
- Etherne 112
- Ethernet 1 and ethernet 2 connectors 112
- Precautions to be taken with the ethernet cable 113
- Connector 114
- I o connector 114
- 5 v supply voltage polyswitch 0 a 115
- Connector 115
- Connector parameters and specifications continued 115
- Dmta053 01en rev d july 2017 115
- Encoder inputs 115
- Figure 10 3 the 115
- Maximum frequency 250 khz 115
- Maximum voltage 24 v 115
- Parameters specifications 115
- Table 11 115
- Technical references 109 115
- Alarm connector 118
- Connector 118
- Analog 120
- Analog x1 and analog y1 connectors 120
- Connectors 120
- Connectors specific to the electromagnetic acquisition board 120
- Connector 122
- Connectors specific to the ect option 122
- Ect extended connector 122
- A b c d e f g h j 124
- Chapter 10 118 124
- Connector 124
- Dmta053 01en rev d july 2017 124
- Ect extende 124
- Figure 10 6 the 124
- M n p r s 124
- Connector 127
- Ect main connector 127
- Connector 129
- Ect ref connector 129
- Connector 131
- Connectors specific to the rft and mfl option 131
- Rft connector 131
- Connector 134
- Mfl connector 134
- Connector 136
- Mux connector 136
- Connectors 138
- Connectors specific to the ut board 138
- P and r connectors 138
- Failure messages 141
- Format of the failure messages 141
- Introduction 141
- Warning messages 142
- Error messages 144
- Fatal error messages 145
- List of figures 147
- List of tables 149
- Index 145 151
- Index 146 152
- Index 147 153
- Index 148 154
- Index 149 155
- Index 150 156
- Index 151 157
- Index 152 158
- Index 153 159
- Index 154 160
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