B&K 2250 Light Uživatelský manuál Strana 31
- Strana / 122
- Tabulka s obsahem
- KNIHY
- Technical 1
- Documentation 1
- Hand-held Analyzer Type 2250 2
- Safety Considerations 3
- Table of Contents 4
- Chapter 1 6
- 1.2 System Overview 7
- 1.3 Hardware Setup 8
- CHAPTER 1 10
- Chapter 2 12
- 2.4 Frequency Weightings 13
- 2.5 Measured Quantities 13
- Table 2.1 14
- Frequency weight 14
- IEC 61672 – 1, Ta 14
- Table 2.2 15
- Exponential time 15
- CHAPTER 2 16
- ∆t where: 17
- 2.5.4 Spectrum Measurements 18
- Chapter 3 20
- 3.6 EMC test procedures 21
- 3.6.4 Accessories 22
- Chapter 4 24
- 4.5 Microphone 25
- 4.6 Frequency Response 25
- CHAPTER 4 26
- 4.6.3 Low-frequency Responses 27
- 4.7 Directional Response 31
- Table A.25 35
- Table A.32 37
- Table A.34 to Table A.36 39
- Table A.44 to Table A.46 42
- 4.8 Self-generated Noise 44
- 4.9 Measuring Range 46
- 4.9.4 Indicator Range 47
- 4.9.5 Linearity Range 47
- 4.9.6 Pulse Range 47
- 4.9.7 Linear Operating Range 47
- 4.10 Detectors 48
- 4.10.2 Linear Averaging 49
- 4.10.3 Peak 49
- 4.11 Spectrum Analysis 50
- 4.11.3 Linear Operating Range 51
- 4.11.4 Measurement Range 52
- Fig.4.31 53
- The most sensitive 53
- Table 4.13 53
- Magnetic Fields 53
- 4.13.2 Trigger Socket 54
- 4.14.1 Output Socket 54
- 4.14.2 Headphones Socket 54
- 4.15 Power Supply 55
- 4.16 Warm-up Time 55
- 4.17 Real-time Clock 55
- Appendix A 58
- angle of incidence to 65
- ‘UA 1404’ 69
- A.4 Directional Responses 71
- APPENDIX A 100
- Instruction Manual 101
- 500 Hz – 3550 Hz 105
- 4000 Hz – 10600 Hz 106
- 11200 Hz – 20000 Hz 107
- Appendix B 110
- APPENDIX B 112
- B.3 Irrelevant Topics 116
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