共 50 条
- [21] A DIRECT-READING FREQUENCY METER FOR THE AUDIO AND SUPERSONIC RANGES REVIEW OF SCIENTIFIC INSTRUMENTS, 1948, 19 (01): : 43 - 46
- [23] A direct-reading frequency meter suitable for high speed recording REVIEW OF SCIENTIFIC INSTRUMENTS, 1935, 6 (02): : 43 - 46
- [25] The Purdue Pitch Meter - A Direct-Reading Fundamental Frequency Analyzer JOURNAL OF SPEECH AND HEARING DISORDERS, 1950, 15 (02): : 135 - 141
- [26] A direct-reading pH meter for glass, quinhydrone, and hydrogen electrodes INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1935, 7 : 0203 - 0205
- [27] NEW DIRECT-READING THREE-COLOR METER. Journal of the SMPTE (Society of Motion Picture and Television Engineers), 1976, 85 (02): : 80 - 84
- [29] A simple direct-reading potentiometer for standard cell comparisons JOURNAL OF THE OPTICAL SOCIETY OF AMERICA AND REVIEW OF SCIENTIFIC INSTRUMENTS, 1922, 6 (08): : 859 - 864
- [30] A DIRECT-READING SILICON METER FOR ELECTRICAL SHEET STEELS AND A NOTE ON RESISTIVITY JOURNAL OF SCIENTIFIC INSTRUMENTS AND OF PHYSICS IN INDUSTRY, 1948, 25 (06): : 191 - 193