Simrad EQ 55 Informacje Techniczne Pobierz pdf (Strona 72)

950-70017001/Iss 1.2 EQ-55 Operators Manua

l

Page 3.4 Principles of Operation of an Echo Sounde

r

Kongsberg Simrad Mesotech Ltd.

Port Coquitlam, BC - Canada

3.1.4 Transducer(s)

A transducer is composed of a number of elements embedded in a housing which

has been reinforced with polyester or fiberglass. The transducer is attached

horizontally to the bottom of the hull. It is essential that the transducer be

mounted properly as echo transmissions are radiated at right angles from the

transducer face. Shielded cables connect the transducer with the echo sounder.

3.2 HOW THE EQ-55 WORKS

When the EQ-55 is turned on the

processor begins to send an electrical

voltage to the transducer. The

cylindrical resonators in the transducer

have a special property which enables

them to change dimensions slightly

when a varying voltage is applied. The

voltage is thus converted to mechanical

vibrations (sound waves) which are then

transmitted down through the water.

See figure 3.1

Figure 3.1 Transmitted “ping”

from the receiver/transmitter

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 153 154

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Canon 312 XL-S Manuel de l'utilisateur (85 pages)

marque: Canon | Catégorie: Camcorders | Taille: 0.42 MB |

Anglais

Table des matières

INSTRUCTIONS

1

CANOSOUND

2

Contents

3

REAIOTE'Q o 0 0

5

Outstanding Features

7

Specifications

10

X 136(W) X

14

GENERAL OUTLINE

17

Film transport indicator

18

Built-in Rubber Hood

20

Hand Grip and Strap

20

Rubber Mat

20

Battery Loading

21

Battery check/Film

23

Q end warning lamp

23

Battery Life

24

Battery Check

24

Eyepiece Adjustment

25

Main Switch

25

Shutter Release Lever

28

Viewfinder

28

Power Zooming

29

Manual Zooming

29

Focusing

32

Film Plane Indicator

32

Using the Zone Focusing

32

Use of the CCA Fflter Switch

33

CCA FStar Settings

34

Film Loading

36

Checking Film Advance

37

Footage Counter

37

. Film transport

38

Q Underexposure

39

How to Hold the Camera

40

Cue Light

41

Battery check/Film end

43

Removing the Film Cartridge

44

Macrocinematography

48

Running Lock

51

Remote Control Shooting

51

Finder Cover

52

Finder cover

53

SOUND FILMING

55

Microphone

55

Earphone

55

Windscreen

57

Position of the Microphone

58

Audio Level Switch

59

HIming Using the Microphone

62

- - - - - -

65

Cleaning the Recording Head

70

Hints in Filming Titles

71

4%^ V' :'“

73

-■4¡í к:ж*^ •

73

Accessories

74

Boom Microphone BM70

74

Boom Microphone BM50

74

Power Pack 9V

74

С-8 Wide Attachment Lens 43

77

Self-Timer E

77

Headphone HP-M

77

Lighting Adaptor LA-1

78

Connecting Cord C300L

78

43 mm Filters

78

CAMERA MAINTENANCE

80

Cleaning

80

When the Camera is not in use

81

High Temperature

81

Caution with the Head

81

Canon 312XL-S Sound System

82

Film Compartment Opening Knob

83

PUB. IE01-047G

85

0378B2.3

85

PRINTED IN JAPAN

85

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