Microsoft LPF-00004 Manual del operador Pagina 79
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Valorado. / 5. Basado en revisión del cliente
MAKING YOUR OWN ADAPTER OR ACTIVE PROBE Page 61
C
YBER
A
MP
380, COPYRIGHT MARCH 2002, AXON INSTRUMENTS, INC.
Current Probes
Photodiode Amplifier
1
U
INPUT
R
1
100 M
Ω
C1
0.1
C2
0.1
100 mV/nA
ANALOG GROUND ( 10 )
15 V ( 8 )
INPUT ( 2 )
15 V ( 15 )
CURRENT
Figure 26. Current-to-voltage converter. The output voltage of U1 is proportional to -R1 times the input
current (I). Since this inverse output is connected to the negative input of the CyberAmp, the output of the
CyberAmp will be positive for positive values of I. For R1 = 100 MΩ, the sensitivity is 100 mV/nA. Different
values of R1 can be used for different sensitivities. A FET input op amp should be used. The dotted line
shows how a photodiode can be connected.
Wheatstone Bridge Strain Gauge Circuits
R
R
R
R
5.000 V
(
4
)
INPUT
(
1
)
INPUT
(
2
)
ANALOG GROUND
(
10
)
Figure 27. Standard connections for a Wheatstone bridge strain gauge used for pressure, force, strain or
other measurements. For example, if the gauge manufacturer quotes a sensitivity of 5 µV/V/mmHg, then the
sensitivity of the gauge when connected to a CyberAmp is 25 µV/mmHg. The resistance (R) of each arm of
the gauge is often 350 Ω, but higher or lower values are possible. If substantially lower values are used, the
user should make sure that the total current drawn by all CyberAmp channels from the +5.000 V excitation
supply does not exceed the specified rating.
- CyberAmp 380 1
- Declaration of Conformity 3
- IMPORTANT INFORMATION 5
- RENSEIGNMENTS IMPORTANTS 6
- WICHTIGE INFORMATIONEN 7
- INFORMACION IMPORTANTE 8
- Explanation of symbols 9
- Explication des symboles 9
- Explicación de símbolos 9
- SÉCURITÉ 10
- SICHERHEITS 10
- HINWEISE 10
- SEGURIDAD 10
- COPYRIGHT 11
- VERIFICATION 11
- TABLE OF CONTENTS 13
- INTRODUCTION 19
- Page 2 INTRODUCTION 20
- INTRODUCTION Page 3 21
- FUNCTIONAL DESCRIPTION 23
- General Features 26
- FUNCTIONAL CHECKOUT 29
- TYPICAL CONFIGURATIONS 33
- Supply Voltage 37
- Changing the Fuse 37
- Grounding and Hum 38
- Power-Supply Glitches 39
- Input Coupling 39
- Expansion 40
- Low-Pass Filter 41
- Amplitude Characteristics 42
- Sampling Rate 43
- 10-90% Rise Time 43
- AC Coupling and Autozeroing 44
- 3 dB frequency of 44
- Time Constant 46
- 100 1.6 46
- Saturation 47
- Notch Filter 48
- Overload Detection 49
- Audio Monitor 50
- External Input 51
- Electrode Test 52
- Strain Gauges 55
- Active Probes 56
- Common-Mode Rejection Ratio 57
- Troubleshooting 59
- TRANSDUCERS 61
- Page 44 TRANSDUCERS 62
- TRANSDUCERS Page 45 63
- EMG, EEG, ECG Recording 64
- Nerve Cuffs 65
- Metal Microelectrodes 65
- Page 48 TRANSDUCERS 66
- Pressure 67
- Acceleration 67
- Self Heating 68
- Isolation 68
- Insulation Techniques 68
- AI 400 SERIES SmartProbes 69
- Transducer Adapter 71
- Input Connector Color Scheme 72
- Recommended Input Coupling 73
- Connector 74
- Example Circuits 75
- Basic Thermistor Circuit 76
- Amplifier Probes 78
- Current Probes 79
- Photodiode Amplifier 79
- Linear Potentiometers 80
- Rotary Potentiometers 80
- Panel Switch 81
- Foot Switch 81
- CMD300 CONTROL SOFTWARE 83
- Command-Line Mode 85
- Interactive Mode 85
- Command-File Mode 86
- Command Reference 87
- CMD300 OVERLOAD 91
- CMD300 REPEAT OVERLOAD 94
- QUICK300 CONTROL SOFTWARE 97
- Command Line Options 100
- CyberControl SOFTWARE 101
- Starting CyberControl 102
- Overload Handling 105
- Keyboard Commands 105
- Communications Settings 107
- PC Menus 108
- Macintosh Menus 109
- PROGRAMMER'S GUIDE 112
- Libraries and Example Code 114
- > end of response 116
- AT3F5 24000 118
- 2 4 6 8 10 ... 28000 30000 118
- AT8R06000 121
- D5=-1234500 124
- Implementation Notes 125
- Support Routine Details 125
- Example Programs 129
- SPECIFICATIONS 135
- Page 118 SPECIFICATIONS 136
- Offset range: ±10 V 137
- Page 120 SPECIFICATIONS 138
- SPECIFICATIONS Page 121 139
- Page 122 SPECIFICATIONS 140
- REFERENCES 141
- ADJUSTMENT PROCEDURES 143
- Other Adjustments 144
- CIRCUIT DIAGRAMS Page 127 145
- SERIAL COMMUNICATIONS CABLES 147
- LIST OF FIGURES AND TABLES 149
- WARRANTY 151
- WARNING 153
- INDEX Page 137 155
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