GB702534A - Improvements in or relating to sound-wave-ranging apparatus - Google Patents

Improvements in or relating to sound-wave-ranging apparatus

Info

Publication number
GB702534A
GB702534A GB3039650A GB3039650A GB702534A GB 702534 A GB702534 A GB 702534A GB 3039650 A GB3039650 A GB 3039650A GB 3039650 A GB3039650 A GB 3039650A GB 702534 A GB702534 A GB 702534A
Authority
GB
United Kingdom
Prior art keywords
crystal
sections
dec
electrodes
pulse generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3039650A
Inventor
Charles Norman Smyth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Birmingham Small Arms Co Ltd
Original Assignee
Birmingham Small Arms Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Birmingham Small Arms Co Ltd filed Critical Birmingham Small Arms Co Ltd
Priority to GB3039650A priority Critical patent/GB702534A/en
Priority to FR1046263D priority patent/FR1046263A/en
Publication of GB702534A publication Critical patent/GB702534A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

702,534. Piezo-electric instruments. BIRMINGHAM SMALL ARMS CO., Ltd. Dec. 12, 1951 [Dec. 13, 1950], No. 30396/50. Class 40 (4) [Also in Groups XXXVIII and XL (b)] A combined transmitting and receiving transducer for sound-wave ranging by the pulseecho system comprises a circular piezo-electric crystal 1 diametrically divided into two D- shaped sections 1a and 1b mounted in an earthed metal cup 2 containing a plastic material 4 (such as polyvinyl chloride) which serves to hold two plate-like electrodes 3 against the underfaces of the respective crystal sections, one being connected to a pulse generator and the other to a receiver amplifier. A circular diaphragm 5 is diametrically grooved at 6 and may be secured against or adjacent the crystal 1 by a band clip 7 located by the engagement of a pin 8 with a slot 9. A screen 10 connected to the cup 2 is disposed between the sections 1a and 1b In a modification, Fig. 2 (not shown), the crystal is divided into a central disc for connection to a pulse generator and surrounding annulus for connection to a receiving amplifier. The electrodes may be evaporated or sputtered on to the appropriate crystal surface, and also serve to damp crystal oscillations and give a rapid decay after energization.
GB3039650A 1950-12-13 1950-12-13 Improvements in or relating to sound-wave-ranging apparatus Expired GB702534A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3039650A GB702534A (en) 1950-12-13 1950-12-13 Improvements in or relating to sound-wave-ranging apparatus
FR1046263D FR1046263A (en) 1950-12-13 1951-12-10 Sound wave distance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3039650A GB702534A (en) 1950-12-13 1950-12-13 Improvements in or relating to sound-wave-ranging apparatus

Publications (1)

Publication Number Publication Date
GB702534A true GB702534A (en) 1954-01-20

Family

ID=10307025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3039650A Expired GB702534A (en) 1950-12-13 1950-12-13 Improvements in or relating to sound-wave-ranging apparatus

Country Status (2)

Country Link
FR (1) FR1046263A (en)
GB (1) GB702534A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090939A (en) * 1953-05-13 1963-05-21 Massa Frank Tessellated electromechanical transducer element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914686A (en) * 1953-10-06 1959-11-24 Texaco Inc Crystal microphone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090939A (en) * 1953-05-13 1963-05-21 Massa Frank Tessellated electromechanical transducer element

Also Published As

Publication number Publication date
FR1046263A (en) 1953-12-04

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