Welcome To Seismic Source Company

Seismic Source Company is a manufacturer of seismic instruments and data acquisition systems. Its products are used in a broad range of applications: Seismology, Structural Monitoring, Seismic Site Evaluation, Civil Engineering, Gas and Oil Exploration, Industrial Vibration Monitoring.


portable bd3
In-Field Geophone Testing
Versatile Quality Control System

General Purpose QC Tool:

32-bit, high speed, ADC chip for lower noise and increased accuracy

Embedded computer – Small, lightweight and portable

Internal battery for all-day use

GPS based time and location saved for every record

Designed rugged for outdoor use in the field

Bright, high-contrast screen readable in any light

All test data saved in non-volatile memory for later download and retrieval

Connects to PC via Ethernet or optional Wi-Fi to download results for display, analysis,
report generation and archival

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Geophone Testing Features:

QC individual element or string

Run geophone tests when and where recording system cannot

Tests anywhere at anytime

Assures clients that geophones are operating correctly

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Geophone QC Software:

Time Domain and Frequency Domain Tests

Records and Prints all Test Results

Geophone Tests and Limits
 Test  Range  Accuracy  Resolution
 Frequency  1-100 Hz  ±0.2 Hz  ±0.01 Hz
 Resistance  10-10,000 Ohms  ±1 %  ±0.1 Ohm
 Impedance  20-20,000 Ohms  ±1 %  ±0.1 Ohm
 Sensitivity  -100% to +100%  ±2 %  ±0.001%
 Distortion  0-20%  ±2 %  ±0.01 %
 Damping  0.1-0.9  ±1 %  ±0.001
 Leakage  1-100 MOhm  ±1 %  ±0.1 MOhm
 Polarity  Positive/Negative  -  -

Portable BD3 QC System Includes:

Three Channel Portable Bird Dog 3 Unit

BD3 Geophone Field QC kit with:

  • Geophone Wiring Harness:

    - Tests one 3-Component Geophone


    - Tests one 1-Component Geophone String

  • Charger for Internal Battery
  • CAT5 Computer Interface Cable

Hydrophone Testing Option Available

Portable Bird Dog 3 Specifications:



32 bit high-speed sigma delta converter

Dynamic Range


126 dB



0.0012 %



Better than -125 dB



> 100 dB

Noise Floor (@2ms)


< 0.09 μV RMS

Input Impedance


20k Ohms

Available Tests


Geophones or Hydrophones


# Channels





-40°C to +85°C



0 to 100%

Size (w/o handle)


11.0 x 5.0 x 3.25 in. (279 x 127 x 83 mm)



5 lbs (2.27 kg)

Data Storage (Internal 8GB CF)


480 hours for 3 channels @ 2ms


  Portable Bird Dog 3 Brochure Download Portable Bird Dog 3 Brochure

Seismic Source Co

2391 E. Coleman Rd.
Ponca City, OK 74604
Phone: (580) 762-8233
Fax: (580) 762-1785
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