Home About Us Products What We Do Past Projects Contact Info Jobs Site Map
logo Jobs

 

 


Products

OEM Development

Web Applications

 

 


 

 

_________________________________________________________________

PSIP

Portable Field/Lab Spectral Induced Polarization (PSIP)

Shipping

_________________________________________________________________

SIP Full Switch

Portable SIP Full Switch Unit

Shipping

_________________________________________________________________

 

spectral induced polarization sip sonde

PSIP Stimulus Switch

Shipping

_________________________________________________________

 

spectral induced polarization sip sonde

PSIP Stimulus Amplifier

Shipping

_________________________________________________________

spectral induced polarization sip sonde

OEM SIP Sonde Electronics

Shipping

 

_________________________________________________________

Sonde

SIP Sonde

Now available

 

_________________________________________________________________

 

Portable Field/Lab Spectral Induced Polarization (SIP) Unit (PSIP)

The PSIP is a low-cost high-performance multi-channel geophysical instrument optimized for laboratory and in situ near surface SIP, conventional resistivity, time-domain induced polarization and self-potential measurements.

portable field lab spectral induced polarization sip psip diagram.

Functional Block Diagram

 

 

spectral induced polaraization sip waveform

Theory of Operation

 

Measurement types:
o Spectral Induced Polarization (SIP)
o Conventional Resistivity
o Self-potential
o Time-domain Induced Polarization

Applications:
o Laboratory experimental setups including
o columns, 2-D and 3-D tanks
o Laboratory physically simulated surface and borehole environments
o Small scale surface and shallow borehole field environments

Features:
o 1mHz - 50kHz frequency range (Base Configuration - 1mHz - 20kHz)
o Up to 4 simultaneous test setups
o Simultaneous sampling of up to 24 voltage sense pairs
o Actively driven electrode guards/shields for overcoming capacitive coupling and noise
o Multiple units can be connected together for increased channel capacity
o User selectable (4) reference internal resistor values
o External reference resistor
o Web browser user interface
o Water-resistant field/travel case

Stimulus Outputs [1..4]: (Base Configuration - 2 Outputs)
o Type: Differential
o Voltage: ±10V (20V p-p)
o Current: 10mA (per channel)
o 20mA (all channels)
o Impedance: 100m

Sense Inputs [1..24]: (Base Configuration - 4 Inputs)
o Type: Differential
o Voltage: ±10V (20V p-p)
o Differential Impedance: 4G/1.25pF
o Common Mode Impedance: 1G/4pF

Interfaces:
o Ethernet
o USB Type A
o VGA
o I2C
o Analog Ground
o Chassis Ground
o External Trigger In
o External Trigger Out
o External Reference Resistor x 4

Power Input:
o 12V DC Nominal

Dimensions:
o Unit: 17.16'' x 10.53'' x 7.69''
o Case: 24.6'' x 19.7'' x 14.4''

 

 

_________________________________________________________________

 

Portable Spectral Induced Polarization (SIP) Full Switch Unit (PSFS)

The PSFS is a switching unit designed specifically as an accessory to the PSIP. The PSFS maintains the driven guards of the PSIP for optimal signal quality.

 

Configurations:
o 4 x 24
o 4 x 48
o Dual 4 x 24

Larger Configuration Support:
o PSFS units can be ganged for larger confgurations


Power Input:
o PSIP provides power

Dimensions:
o Unit: 17.16'' x 10.53'' x 7.69''
o Case: 24.6'' x 19.7'' x 14.4''

 

_________________________________________________________________

 

spectral induced polarization sip sonde

Inputs

Outputs

 

PSIP Stimulus Switch Unit

PSIP accessory for time domain and self potential measurements. Power and control from PSIP.

Dimensions:

o Length -- 10"
o Width -- 7.3"
o Depth -- 3.9"

_________________________________________________________________

 

spectral induced polarization sip sonde

Inputs

Outputs

 

PSIP Stimulus Amplifier Unit

PSIP accessory for measurements requiring more power than PSIP provides.

Stimulus Output:
o Type: Differential
o Voltage: ± 25V (50V p-p)
o Current: 1 A

Dimensions:

o Length -- 10"
o Width -- 7.3"
o Depth -- 3.9"

_________________________________________________________________

OEM SIP Sonde Electronics

Complete electronics, firmware and acquisition and control software that is suitable for integration into a customer's sonde / borehole logging system. SIP stimulus and sensing performed entirely by SIP Sonde Electronics within the borehole. Modular electronics design supports application specific focusing and electrode arrangements by simply adding modules.

Power Input:
o 12V DC Nominal

Control Input:
o Ethernet

Dimensions:
o Length -- 48"-72" -- depending on electrode configuration
o Diameter --- 1.5" inside diameter required

 

_________________________________________________________________

spectral induced polarization sip sonde

 

Coming Soon

SIP Sonde

Complete sonde including enclosure, electronics, firmware and acquisition and control software.

_________________________________________________________________

 

 

 

Home ] Past Projects ] About Us ] Products ] What We Do ] Contact Info ] Jobs ] Site Map ]

Send your questions and comments to webmaster@ontash.com

Ontash & Ermac, Inc.
876 Kinderkamack Road - Suite 201
River Edge, NJ 07661
201.265.2189 Tel.
201.265.4129 FAX
www.ontash.com
1996 - 2015
Ontash & Ermac, Inc.