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Francois Bergeron

Displacement | Microstrain - 0 views

www.microstrain.com/displacement

supplier sensors strain displacement company material

shared by Francois Bergeron on 06 Jun 12 - No Cached
  • MicroStrain offers a range of miniature displacement sensors.  These include contact sensors, non-contact sensors, and signal conditioners. Within our contact sensors, we offer gauging, non-gauging, sub-miniature (very small) and micro-miniature (smallest available on the market) displacement sensor designs.  MicroStrain displacement/position sensors are known as DVRTs (Differential Variable Reluctance Transducers) which are half-bridge LVDTs (Linear Variable Differential Transformers).  Our DVRTs deliver a very high linear stroke range to body length ratio, and can be used in environments where traditional LVDTs are too large.  MicroStrain’s miniature displacement transducers are extremely robust, capable of operating at temperatures up to 175°C in corrosive media such as saline, oil, and brake fluid.  The near frictionless design enables sensors to operate over millions of cycles without wear or degradation in signal quality.
  • croStrain offers a range of miniature displacement sensors.  These include contact sensors, non-contact sensors, and signal conditioners. Within our contact sensors, we offer gauging, non-gauging, sub-miniature (very small) and micro-miniature (smallest available on the market) displacement sensor designs.  MicroStrain displacement/position sensors are known as DVRTs (Differential Variable Reluctance Transducers) which are half-bridge LVDTs (Linear Variable Differential Transformers).  Our DVRTs deliver a very high linear stroke range to body length ratio, and can be used in environments where traditional LVDTs are too large.  MicroStrain’s miniature displacement transducers are extremely robust, capable of operating at temperatures up to 175°C in corrosive media such as saline, oil, and brake fluid.  The near frictionless design enables sensors to operate over millions of cycles without wear or degradation in signal quality. MicroStrain’s displacement sensing products including transducers, signal conditioners, and motherboards. These systems provide highly precise measurement solutions. MicroStrain’s contact displacement transducers deliver highly precise linear measurements with an extremely small, miniature design.  Both gauging and non-gauging displacement transducers are available. Our non-contact displacement transducers are designed to measure the displacement and proximity of a metal target without physical contact. MicroStrain offers wireless, analog, and digital output DVRT signal conditioners. Signal conditioners are required for use with MicroStrain DVRT displacement sensors.   .familyNav1, .familyNav2, .familyNav3, .familyNav4 { background: none repeat scroll 0 0 #CCCCCC; color: #FFFFFF; display: block; font-size: 14px; margin: 1px 0; padding: 6px 0 3px 6px; text-decoration: none; } .familyNav1:hover, .familyNav2:hover, .familyNav3:hover, .familyNav4:hover { opacity:1.0; filter:alpha(opacity=100); } .familyNav1:hover, .familyNav1.live { background:#0468AD; } .familyNav2:hover, .familyNav2.live{ background:#32641E; } .familyNav3:hover, .familyNav3.live{ background:#B55A11; } .familyNav4:hover, .familyNav4.live{ background:#76285D; } .familySub { margin: -1px 0 0; opacity:0.7; filter:alpha(opacity=80); font-size:12px; } .familySub img { width: 22px; } WIRELESS SENSOR NETWORKS
Francois Bergeron

United States Patent: 5316950 - 0 views

patft.uspto.gov/...nph-Parser

shared by Francois Bergeron on 01 Sep 11 - No Cached
  • One method for measuring contaminants which has been extensively discussed is the use of fiber-optic guided systems for in situ spectroscopy and chemical sensing,
  • Recently, a cooperative effort with many participants
  • Francois Bergeron on 01 Sep 11
     
    optical measurement and strain gauge
Francois Bergeron

Conference Detail for Industrial and Commercial Applications of Smart Structures Techno... - 0 views

spie.org/...index.cfm

conference sensors structures smart

shared by Francois Bergeron on 05 Mar 13 - No Cached
  • Francois Bergeron on 05 Mar 13
     
    "Three-axis distributed fiber optic strain measurement in 3D woven composite structures   Paper 8690-6 Time: 1:50 PM - 2:10 PM Author(s): Matt Castellucci, Evan M. Lally, Sandra Klute, Luna Innovations Inc. (United States); David Lowry, NASA Johnson Space Ctr. (United States) Hide Abstract Add to My Schedule  Recent advancements in composite materials technologies have broken further from traditional designs and require advanced instrumentation and analysis capabilities. Success or failure is highly dependent on design analysis and manufacturing processes. By monitoring smart structures throughout manufacturing and service life, residual and operational stresses can be assessed and structural damage identified. Composite smart structures can be manufactured by integrating fiber optic sensors into existing composite materials processes such as layup, filament winding and three-dimensional weaving. In this work optical fiber was integrated into 3D woven composite parts at a commercial woven products manufacturing facility. The fiber was then used to monitor the structures during a VARTM manufacturing process, and subsequent static and dynamic testing. Low cost telecommunications-grade optical fiber acts as the sensor using a high resolution commercial Optical Frequency Domain Reflectometer (OFDR) system providing distributed strain measurement at spatial resolutions as low as 2mm. Strain measurements using the optical fiber sensors are correlated to resistive strain gauge measurements during static structural loading."
Tiberius Brastaviceanu

Fibre-optical strain-gauge - Google Patents - 0 views

www.google.com/patents

Fibre-optical strain-gauge patent

shared by Tiberius Brastaviceanu on 09 Sep 11 - No Cached
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 09 Sep 11
       
      A similar concept, based on misalignment was used by Gerald Pollack in muscle physiology (1993)   
  • Tiberius Brastaviceanu on 09 Sep 11
     
    2 fiber device, relies on a mechanical assembly and its known elastic properties. Differs from our sensor in that ours has one free end.
Tiberius Brastaviceanu

Optical strain gauge - Google Patents - 0 views

www.google.com/patents

optical strain patent gauge

shared by Tiberius Brastaviceanu on 09 Sep 11 - No Cached
  • Tiberius Brastaviceanu on 09 Sep 11
     
    Far from what we have. This is about a moving object with a grating on it and a laser beam diffracting on it and detecting changes in the freq of res.  
Tiberius Brastaviceanu

Science and Technology Consultation - Industry Canada - 0 views

www.ic.gc.ca/...h_07416.html

Industry Canada

shared by Tiberius Brastaviceanu on 15 Jan 14 - No Cached
  • Under this strategy
    • Yasir Siddiqui
      Yasir Siddiqui on 15 Jan 14
       
      Testing
    • Yasir Siddiqui
      Yasir Siddiqui on 15 Jan 14
       
      testing
  • Genome Canada, the Canadian Institute for Advanced Research and the Canada Foundation for Innovation.
  • Still, Canadian businesses continue to underperform when it comes to innovation—a primary driver of productivity growth—when compared to other competing nations. The performance of business R&D is one oft-cited measure used to gauge the level of innovative activity in a country's business sector.
  • ...38 more annotations...
  • Canadians have reached top tier global performance in reading, mathematics, problem solving and science, and Canada has rising numbers of graduates with doctoral degrees in science and engineering.
  • This valuable resource of highly qualified and skilled individuals needs to be better leveraged.
  • The ease and ability of the academic community to collaborate, including through research networks, is also well-recognized.
  • to develop technologies, products and services that add value and create high-paying jobs.
  • Canada has an impressive record when it comes to research and the quality of its knowledge base.
  • Still, the innovative performance of Canada's firms and the productivity growth continue to lag behind competing nations.
  • The government is also committed to moving forward with a new approach to promoting business innovation—one that emphasizes active business-led initiatives and focuses resources on better fostering the growth of innovative firms.
  • Achieving this requires the concerted effort of all players in the innovation system—to ensure each does what one does best and to leverage one another's strengths.
  • the government has invested more to support science, technology and innovative companies than ever before
  • Canada must become more innovative
    • Kurt Laitner
      Kurt Laitner on 15 Jan 14
       
      problem statement
  • providing a new framework to guide federal ST&I investments and priorities. That is why the Government of Canada stated its intention to release an updated ST&I Strategy in the October 2013 Speech from the Throne.
    • Kurt Laitner
      Kurt Laitner on 15 Jan 14
       
      exercise
  • seeking the views of stakeholders from all sectors of the ST&I system—including universities, colleges and polytechnics, the business community, and Canadians
  • written submissions from all Canadians on the policy issues and questions presented in this paper.
  • The government remains focused on creating jobs, growth and long-term prosperity for Canadians
  • encouraging partnerships with industry, attracting highly skilled researchers, continuing investments in discovery-driven research, strengthening Canada's knowledge base, supporting research infrastructure and providing incentives to private sector innovation.
  • has transformed the National Research Council, doubled its investment
  • supported research collaborations through the federal granting councils
  • created the new Venture Capital Action Plan
  • helping to promote greater commercialization of research and development
  • Our country continues to lead the G7 in spending on R&D
  • Canada has a world-class post-secondary education system that embraces and successfully leverages collaboration with the private sector, particularly through research networks
  • destination for some of the world's brightest minds
  • global race
  • businesses that embrace innovation-based strategies
  • post-secondary and research institutions that attract and nurture highly qualified and skilled talent
  • researchers who push the frontiers of knowledge
  • governments that provide the support
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 07 Feb 14
       
      Why a race? We need to change the way we see this!!! We need to open up. See the European Commission Horizon 2020 program  http://ec.europa.eu/programmes/horizon2020/en/ They are acknowledging that Europe cannot do it alone, and are spending money on International collaboration. 
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 07 Feb 14
       
      There is nothing about non-institutionalized innovation, i.e. open source! There is nothing about the public in this equation like the Europeans do in the Digital Era for Europe program  https://ec.europa.eu/digital-agenda/node/66731 
  • low taxes, strong support for new businesses, a soundly regulated banking system, and ready availability of financial services
  • reducing red tape
  • expanding training partnerships and improving access to venture capital.
  • Collaboration is key to mobilizing innovation
  • invest in partnerships between businesses and colleges and universities
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 07 Feb 14
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 07 Feb 14
       
      But the public and in people is still not in sight of the fed gov. 
  • Economic Action Plans (EAP) 2012 and 2013
  • provide incentive for innovative activity in firms, improved access to venture capital, augmented and more coordinated direct support to firms, and deeper partnerships and connections between the public and private sectors.
Tiberius Brastaviceanu

Is Shame Necessary? | Conversation | Edge - 0 views

www.edge.org/...is-shame-necessary

shame collaboration cooperation paper theory

shared by Tiberius Brastaviceanu on 28 Oct 11 - No Cached
  • What is shame's purpose? Is shame still necessary?
  • Shame is what is supposed to occur after an individual fails to cooperate with the group.
  • Whereas guilt is evoked by an individual's standards, shame is the result of group standards. Therefore, shame, unlike guilt, is felt only in the context of other people.
  • ...53 more annotations...
  • Many animals use visual observations to decide whether to work with others.
  • humans are more cooperative when they sense they're being watched.
  • The feeling of being watched enhances cooperation, and so does the ability to watch others. To try to know what others are doing is a fundamental part of being human
  • Shame serves as a warning to adhere to group standards or be prepared for peer punishment. Many individualistic societies, however, have migrated away from peer punishment toward a third-party penal system
  • Shame has become less relevant in societies where taking the law into one's own hands is viewed as a breach of civility.
  • Many problems, like most concerning the environment, are group problems. Perhaps to solve these problems we need a group emotion. Maybe we need shame.
  • Guilt prevails in many social dilemmas
  • It is perhaps unsurprising that a set of tools has emerged to assuage this guilt
  • Guilt abounds in many situations where conservation is an issue.
  • The problem is that environmental guilt, though it may well lead to conspicuous ecoproducts, does not seem to elicit conspicuous results.
  • The positive effect of idealistic consumers does exist, but it is masked by the rising demand and numbers of other consumers.
  • Guilt is a valuable emotion, but it is felt by individuals and therefore motivates only individuals. Another drawback is that guilt is triggered by an existing value within an individual. If the value does not exist, there is no guilt and hence no action
  • Getting rid of shaming seems like a pretty good thing, especially in regulating individual behavior that does no harm to others. In eschewing public shaming, society has begun to rely more heavily on individual feelings of guilt to enhance cooperation.
  • five thousand years ago, there arose another tool: writing
  • Judges in various states issue shaming punishments,
  • shaming by the state conflicts with the law's obligation to protect citizens from insults to their dignity.
  • What if government is not involved in the shaming?
  • Is this a fair use of shaming? Is it effective?
  • Shaming might work to change behavior in these cases, but in a world of urgent, large-scale problems, changing individual behavior is insignificant
  • vertical agitation
  • Guilt cannot work at the institutional level, since it is evoked by individual scruples, which vary widely
  • But shame is not evoked by scruples alone; since it's a public sentiment, it also affects reputation, which is important to an institution.
  • corporate brand reputation outranked financial performance as the most important measure of success
  • shame and reputation interact
  • in our early evolution we could gauge cooperation only firsthand
  • Shaming, as noted, is unwelcome in regulating personal conduct that doesn't harm others. But what about shaming conduct that does harm others?
  • why we learned to speak.1
  • Language
  • The need to accommodate the increasing number of social connections and monitor one another could be
  • allowed for gossip, a vector of social information.
  • in cooperation games that allowed players to gossip about one another's performance, positive gossip resulted in higher cooperation.
  • Of even greater interest, gossip affected the players' perceptions of others even when they had access to firsthand information.
  • Human society today is so big that its dimensions have outgrown our brains.
  • What tool could help us gossip in a group this size?
  • We can use computers to simulate some of the intimacy of tribal life, but we need humans to evoke the shame that leads to cooperation. The emergence of new tools— language, writing, the Internet—cannot completely replace the eyes. Face-to-face interactions, such as those outside Trader Joe's stores, are still the most impressive form of dissent.
  • what is stopping shame from catalyzing social change? I see three main drawbacks:
  • Today's world is rife with ephemeral, or "one-off," interactions.
  • Research shows, however, that if people know they will interact again, cooperation improves
  • Shame works better if the potential for future interaction is high
  • In a world of one-off interactions, we can try to compensate for anonymity with an image score,
  • which sends a signal to the group about an individual's or institution's degree of cooperation.
  • Today's world allows for amorphous identities
  • It's hard to keep track of who cooperates and who doesn't, especially if it's institutions you're monitoring
  • Shaming's biggest drawback is its insufficiency.
  • Some people have no shame
  • shame does not always encourage cooperation from players who are least cooperative
  • a certain fraction of a given population will always behave shamelessly
  • if the payoff is high enough
  • There was even speculation that publishing individual bankers' bonuses would lead to banker jealousy, not shame
  • shame is not enough to catalyze major social change
  • This is why punishment remains imperative.
  • Even if shaming were enough to bring the behavior of most people into line, governments need a system of punishment to protect the group from the least cooperative players.
  • Today we are faced with the additional challenge of balancing human interests and the interests of nonhuman life.
  • Tiberius Brastaviceanu on 28 Oct 11
     
    The role of non-rational mechanisms in convergence - social emotions like shame and guilt 
Francois Bergeron

OPSENS, Fiber optic temperature sensors, pressure transducers, displacement probes, str... - 1 views

www.opsens.com/...chart

fiber optic sensors pressure displacement

shared by Francois Bergeron on 19 Apr 13 - No Cached
  • strain range up to 10 000μe
  • isplacement sensor based on the WLPI technology offers a 25mm linear stroke length with 1 micron resolution and 0.2% FS accuracy level.
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