PORTABLE RECEIVER FOR ULTRASONIC WAVES IN AIR

[1] ELMORE, 1951, ELECTRONICS

[2] FLEENOR EG, 1963, ELECTRONICS, V36, P67

[3] Griffin D. R., 1958, LISTENING DARK

[4] Krasil'nikov V. A., 1963, SOUND ULTRASOUND WAV, V3rd

[5] KUHL W, 1954, ACUSTICA, V4, P519

[6] CONDENSER MICROPHONES WITH PLASTIC DIAPHRAGMS FOR AIRBORNE ULTRASONICS .1. [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1958, 13 (12) : 1533 - 1543

[7] CONDENSER MICROPHONES WITH PLASTIC DIAPHRAGMS FOR AIRBORNE ULTRASONICS .2. [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1960, 15 (01) : 167 - 174

[8] MCCUE JJG, 1961, 1961 IRE INT CONV 6, P310

[9] PIERCE G. W., 1938, JOUR MAMMAL, V19, P454, DOI 10.2307/1374231

[10] PIERCE GW, 1948, SONGS INSECTS

[1] ELMORE, 1951, ELECTRONICS

[2] FLEENOR EG, 1963, ELECTRONICS, V36, P67

[3] Griffin D. R., 1958, LISTENING DARK

[4] Krasil'nikov V. A., 1963, SOUND ULTRASOUND WAV, V3rd

[5] KUHL W, 1954, ACUSTICA, V4, P519

[6] CONDENSER MICROPHONES WITH PLASTIC DIAPHRAGMS FOR AIRBORNE ULTRASONICS .1. [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1958, 13 (12) : 1533 - 1543

[7] CONDENSER MICROPHONES WITH PLASTIC DIAPHRAGMS FOR AIRBORNE ULTRASONICS .2. [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1960, 15 (01) : 167 - 174

[8] MCCUE JJG, 1961, 1961 IRE INT CONV 6, P310

[9] PIERCE G. W., 1938, JOUR MAMMAL, V19, P454, DOI 10.2307/1374231

[10] PIERCE GW, 1948, SONGS INSECTS