EFP Series Probe Configurations
Inexpensive customized solutions
Our probe template library lets us give you inexpensive customized probe configurations for every application. Give us your application dimensions and characteristics of the media you need to measure, and we will produce a customized solution made specifically to fit your needs. Our engineers will help you pick the best options for your measurement application. All new probe designs undergo finite-element electromagnetic modeling to fine-tune signal processor response characteristics and ensure suitability to your task.
Numerous configurations: rigid coaxial, single or multi-segment; flexible flat (blade) probe, single or multi-segment.
Void fraction / steam quality
Numerous minimally-intrusive flat blade probe configurations or non-intrusive cross-channel designs are available. Self-seating probes for nuclear rod-bundle array installations are available.
Most applications can use either coaxial or blade probe configurations described for liquid level or void fraction / steam quality measurement. For unusual applications, specialized probes can be fabricated on a time and materials basis.
Multiple non-contact probe configurations customized for your application. These can be quite large, encompassing conveyor belts for process applications (e.g., process-line dryer applications), or can be made very small (e.g., moisture in thin tape or filament).
EFP Series Probe Materials
Stainless steel, all grades
The lowest cost probe, suitable for many applications. It can be made in any size and is easy to install and use.
Inconel® 600, 625, 690, 718
This probe material is used for long term applications in environments or solutions that may cause stress corrosion cracking in stainless steel.
This probe material is used for very long term applications at even more extreme conditions in which iron-based alloys would fail.
This material is used for high conductivity, high pH solutions and for situations in which a low cross-section for thermal neutrons is desired (e.g., nuclear reactor core rod-bundle installation). It is used with either the jacketed stainless or Inconel® cable. This is the most expensive of the probe/cable materials and requires special welding and fabrication techniques.
Ceramics and insulators
An important portion of any probe is the region where the probe is mated to the signal source. We have a number of special insulator materials for any situation, including specialized ceramics which allow probes and cables to sustain extreme environments for long periods of time.
EFP Series Cables
Stainless steel coax cable with copper-coated steel center conductor
Suitable for normal operating environments and basic probe design. This is the least expensive, and the best choice for many applications.
Stainless steel jacket with copper liner and copper center
This cable has a lower insertion loss and is good for high conductivity solutions or long cable runs. This is more expensive and difficult to fabricate and install.
Inconel® jacket with copper liner and copper center
This cable has the greatest temperature range and is the most durable option for long term applications in extreme enviroments or corrosive solutions that might cause stress corrosion cracking of stainless steel. This is a more expensive option but necessary for some high-temperature applications.
Cables are chosen for ease of installation, environmental suitability, and signal characteristics and will vary depending on the application. Signal processors can be located more than 100 ft. (30 m) from probe installations with acceptable signal loss.
How to purchase
Every application is different, and our goal is to find the solution that fits your measurement and budgetary needs perfectly. An experienced application engineer is standing by to answer any questions and plan a customized measurement solution for you. Please contact us!