DMTA-10022-01EN, Rev. C, January 2015
Chapter 10
182
Figure 10-15 Examples of the interface blank in mode 3
10.8.3
Mode 3 Echo Blank
The echo blank in mode 3 (
M3 BLANK
) is similar to the interface blank in mode 2, or
to the main bang blank in mode 1. This function creates a blank or dead zone up to
20 µs long following the leading edge of the first detected back-wall echo in order to
prevent detection of trailing lobes or cycles of that echo, and the resulting gage hang-
up (see Figure 10-16 on page 182).
Figure 10-16 Examples of M3 Blank adjustment
Gage reading between back-
wall echoes 1 and 2
Interface blank adjusted so the gage measures
between back-wall echoes 2 and 3
Gage hanging up on trailing edge of back wall 1
M3 BLANK set properly
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Страница 26: ...DMTA 10022 01EN Rev C January 2015 Introduction 16...
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Страница 157: ...DMTA 10022 01EN Rev C January 2015 Configuring the Instrument 147 Figure 8 3 The COMM screen...
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Страница 226: ...DMTA 10022 01EN Rev C January 2015 Appendix A 216...
Страница 232: ...DMTA 10022 01EN Rev C January 2015 Appendix C 222...