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Wireless Brake Shoe Force Measurement System

Award Information
Agency: Department of Transportation
Branch: N/A
Contract: DTRT5706C10018
Agency Tracking Number: SBArenumbered4091
Amount: $249,874.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2006
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
200 Boston Ave. suite 1000
Medford, MA 02155
United States
DUNS: 786127522
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 MC VanSchoor
 (781) 306-0609
Business Contact
 Petra Botha
Title: Chief Financial Officer
Phone: (781) 306-0609
Research Institution

Railroad Freight car safety and maintenance cost is directly related to knowledge of the actual braking force provided by a brake shoe. If the brake force is too low, safety is at risk. If the brake shoe is replaced before the end of it's lifetime to ensure safety, maintenance and thus operating costs are increased. Currently there is no system in place to monitor brake shoe force during train operation. Mide has constructed a feasible self-powering brake shoe force measurement system design based on Phase I trade studies, prototypes and testing. The system includes a piezo electric energy harvester that powers a system consisting of a low power strain measurement device as well as data storage and wireless transmitting capability. Strain is measured via high temperature strain gage capable of operating in presence of extreme thermal loads. This system will wake up during a brake event, record data until the brake force has subsided and wirelessly transmit the data to a central location for reduction and analysis. Since the system is self-powered it will never need to be serviced for battery replacement.

* Information listed above is at the time of submission. *

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