Single channel marine seismic station

Single channel marine seismic station

1. Function: Ofshore Seismic measurement for basic geological investigation, engineering geology.
2.  Manufactured by:   Applied Acoustic Engineering Ltd – United of kingdom
3. Year of production: 2016
4. Webiste: https:// appliedacoustics.com
5. SPECIFICATIONS5.1. CSP-D1200 Seismic Energy SourcePhysicalSize: Transit Case (7U) with cover in place and handles flat: 50cm(H) x 58cm(W) x 74cm(D)Weight: Case and cover: 61.5kgElectrical specification

   Mains Input: 240Vac  45-65Hz@3.0kVA single phase. 3 pin connector, Variable Input Power Circuitry (AVIP) ‘soft start’ circuitry

   Voltage Output: 2500 to 3950Vdc, 4 pin interlocked connector ;Solid state semi-conductor discharge method;

   Output Energy:  Easy switch selectable in increments: 50,100,150,200,250,300,350,400,450,500,550,600, 700,800,900,1000,1100,1200 Joules

   Charging Rate: 1500J/second for continuous operation at 0-45°C ambient

   Capacitance: 208μF at 10⁸ shot life

   Trigger: +ve key opto isolated or isolated closure set by front panel switch BNC connector on front panel and remote box (optional)

   Repetition rate: 6pps max, Limited by charge rate, energy level and sound source rating

   Earth: M8 stainless steel stud on front panel

   Safety features

   Main electronic control circuits and secondary layer of safety circuitry

   Specially designed HV connector with interlock

   High speed dump resistors for high voltage components

   Capacitor bleed resistors

   Open circuit shutdown

   Timer shutdown

   Output current monitor and shutdown

   Over temperature shut-down

   Cover and connector interlocks

   HV fault indicator for internal temperature, low input voltage or capacitor fault

   Remote control available for triggering and operation

   The unit’s internal design has a modular construction for ease of servicing and capacitor replacement. However, for safety reasons, only Applied Acoustics trained engineers should attempt a repair.

   Compatible sound sources: AA201, AA251, AA301 Boomer plates, Squid 501 and Squid 2000 Sparkers

   5.2.  Squid 2000 Sparker Seismic Sound

   Physical:

   Size: 1250mm (L) x 900mm (W) x 500mm (H)

   Weight: 40kg

   Connector: RMK 1/0

   Electrical Input:

   Recommended energy: 600-2400J/shot

   Maximum energy: 2500J/shot

   Operating voltage: 3000-4000V

   Number of tip locations: 8

   Maximum number of tips: 120 (8 x 15)

   Sound output:

   Source level: Typically 222dB re 1μPa at 1 metre with 1500J

   Pulse length: Typically 1ms at 1000J  (Dependent on tips and power applied)

   Compatible energy sources:          CSP-D, CSP-S1250, CSP-S4000, CSP-S6000

   Compatible HV cable: Type HVC 2000,  50m standard length and RMK 1/0 connectors complete with locking collars

   5.3. Streamer hydrophones

   Model number: AH150/20

   Tow leader: 50m

   Array Tube type: Polyurethane

   Array tube length: 4.5m

   Number of elements: 20

   Element spacing: 150mm

   Array sensitivity: -161dB ref 1V per μPa

   Fluid type: Polydimethylsiloxane, PMX561

   Power: Battery, 9V alkaline, PP3/MN1604

   Frequency response: 140Hz to 10kHz (-3dB)

   Signal output: Up to 8V peak to peak

   Connector type: BNC, 50/75 ohm cable can be used

   Elements

   Dimensions: 55 x 16 x 10 mm

   Sensitivity: -187dB ref 1V per μPa

   Depth recoverable: 30m max

   Operating depth: Typical 10m

   Type: Non acceleration cancelling

   Resonance: @ 9 kHz

   Other element configurations are available to order

    6. Project used this instrument by Geophysical Division:

   Government Project: “Investigation, overall assessment geological and engineering geological features to propose solutions for territorial exploitation and using for construction and development infrastructure  of Vietnam’s coastal strip”.

                                                                                                                                    Source: Geophysical Division./.