Temperature Sensors as a Flexible Linear Array

Request Number REQ3351581
Due Date November 14, 2017
Author Seh-Rin Sung
Request for Proposal Details
RFP Title
Temperature Sensors as a Flexible Linear Array
RFP Description

NineSigma, representing a global electric motor manufacturer, invites proposals for robust temperature sensor or technique for monitoring temperature of an encased motor assembly.


NineSigma’s client manufactures an electronic assembly that is encased in a pressurized fluid chamber made of steel.  The client must monitor the temperature of this assembly at various locations on the assembly and continuously report temperature values to a control system.  They seek a robust sensor or sensors that last the life of the encased assembly.


Previously, they have used individual, discrete temperature sensors in several locations within the assembly.  This approach does not permit sufficient resolution of local thermal excursions (hot spots) within the assembly.  NineSigma’s client seeks different sensor geometries, for example, a linear loop of sensors, to measure temperature over a larger portion of the assembly.



Anticipated Project Phases or Project Plan

Phase 1 – Proof of concept

  • Evaluate sensor performance and reliability in lab setting
  • Evaluate external monitoring system, if different than a simple resistance or voltage differential characterization


Phase 2 – Engineering development

  • Integrate sensors into client products for detailed product evaluation and UL testing


Criteria for Moving from Phase 1 to Phase 2

Client will consider for advancement an approach that meets performance criteria with acceptable economics and pathway to commercialization.



Key Success Criteria

The successful technology will:

  • Offer a means to measure temperature at multiple locations
    • For example, a linear array of discrete temperature sensors to enable temperature measurement at discrete locations over a total length of approximately 12 inches
    • Can be a flexible ribbon (≤ 0.5 inch wide), rope (≤ 0.125 inch diameter), or any other flexible robust configuration
  • Measure and report temperature accurately over range from –20 to +450 °F
  • Report rate of change of temperature
    • Including temperature rise of 30-50 °F/sec
  • Minimize the number of wires that must pass through hermetically sealed chamber
    • Preferably, use < 5 wires, ideally 2 or 3
  • Offer stability over a lifetime up to 15 years

Additional characteristics that would be nice to have include:

  • Ability to pole separately each temperature sensor within an array in case of failure
  • Interface to a logic controller to adjust electronic assembly operation to counteract temperature excursions


NineSigma’s client prefers solutions with technology readiness suitable for incorporation into product applications but is also willing to consider solutions requiring some development.


Possible Approaches

Possible approaches might include, but are not limited to:

  • Temperature sensor integrated circuit
  • Date reported over power wires


Approaches not of interest

  • NTC or PTC discrete leaded pill / sensor technology


Preferred Collaboration types
  • Contract Research
  • Technology Licensing
  • Supply Agreement
  • To Be Negotiated
Items to be submitted

Your response should address the following:

  • Non-confidential description of proposed technology and working principle
  • Availability of technical data including sensor dimensions, temperature range, response rate, sensor array geometry, and life expectancy
  • Technical maturity of the approach (reduced to practice, prototype, ready to implement, commercialized)
  • Pathway to commercial scale including timing, estimated budget, and capacity for manufacture
  • Estimated unit cost of sensor/s and related components (US$)
  • Position on intellectual property including patent references
  • Desired relationship with sponsor
  • Team description and related experience


Appropriate responses to this Request

Responses from companies (small to large), consultants, entrepreneurs, or inventors are welcome.  For example:

You represent a company or university that has demonstrated a device that is ready for implementation at commercial scale.

You represent a technology transfer agency that represents an inventor or technology holder who can demonstrate a sensor to address the request.

You represent a university research department that has a prototype device ready to adapt and scale.



Area of Interest
Request Priority
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