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A fluid level sensor is used in a container in a system for dispensing adhesive used in the formation of electronic devices. The sensor includes a pair of electrical conductors positioned inside the container. A voltage is applied across the conductors to cause a current flow through the fluid in th

A fluid level sensor is used in a container in a system for dispensing adhesive used in the formation of electronic devices. The sensor includes a pair of electrical conductors positioned inside the container. A voltage is applied across the conductors to cause a current flow through the fluid in the container. The magnitude of the current flow represents the amount of fluid remaining in the container. If an empty container is detected, the system is shut off.

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A fluid level sensor is used in a container in a system for dispensing adhesive used in the formation of electronic devices. The sensor includes a pair of electrical conductors positioned inside the container. A voltage is applied across the conductors to cause a current flow through the fluid in th

A fluid level sensor is used in a container in a system for dispensing adhesive used in the formation of electronic devices. The sensor includes a pair of electrical conductors positioned inside the container. A voltage is applied across the conductors to cause a current flow through the fluid in the container. The magnitude of the current flow represents the amount of fluid remaining in the container. If an empty container is detected, the system is shut off. Technical Overview Understanding Foundation � fieldbus technology", Fisher-Rosemount, 1998, pp. 1-23. "Hypertext Transfer Protocol--HTTP/1.0" by, Berners-Lee et al., MIT/LCS, May 1996, pp. 1-54. "Infranets, Intranets, and the Internet" by, Pradip Madan, Echelon Corp, Sensors, Mar. 1997, pp. 46-50. "Internet Technology Adoption into Automation" by, Fondl et al., Automation Business, pp. 1-5. "Internet Protocol Darpa Internet Program Protocol Specification" by, Information Sciences Institute, University of Southern California, RFC 791, Sep. 1981, pp. 1-43. "Introduction to Emit", emWare, Inc., 1997, pp. 1-22. "Introduction to the Internet Protocols" by, Charles L. Hedrick, Computer Science Facilities Group, Rutgers University, Oct. 3, 1988, pp. 1 -97. "Is There A Future For Ethernet in Industrial Control?", Miclot et al., Plant Engineering, Oct. 1988, pp. 44-46, 50. LFM/SIMA Internet Remote Diagnostics Research Project Summary Report, Stanford University, Jan. 23, 1997, pp. 1-6. "Managing Devices with the Web" by, Howard et al., Byte, Sep. 1997, pp. 45-64. "Modular Microkernel Links GUI And Browser For Embedded Web Devices" by, Tom Williams, pp. 1-2. "PC Software Gets Its Edge From Windows, Components, and the Internet", Wayne Labs, I&CS, Mar. 1997, pp. 23-32. Proceedings Sensor Expo, Aneheim, California, Produced by Expocon Management Associates, Inc., Apr. 1996, pp. 9-21. Proceedings Sensor Expo, Boston, Massachuttes, Produced by Expocon Management Associates, Inc., May 1997, pp. 1-416. "Smart Sensor Network of the Future" by, Jay Warrior, Sensors, Mar. 1997, pp. 40-45. "The Embedded Web Site" by, John R. Hines, IEEE Spectrum, Sep. 1996, p. 23. "Transmission Control Protocol: Darpa Internet Program Protocol Specification" Information Sciences Institute, Sep. 1981, pp. 1-78. "Transmission Control Protocol DARPA Internet Program Protocol Specification", by Information Sciences Institute University of Southern California, pp. 1-78, Sep. 1981. "Advanced Engine Diagnostics Using Universal Process Modeling", by P. O'Sullivan, Presented at the 1996 SAE Conference on Future Transportation Technology, pp. 1-9, 1996. "Thermocouple Continuity Checker", IBM Technical Disclosure Bulletin, vol. 20, No. 5, Oct. 1977. "Self-Validating Thermocouple", by J. Yang et al., IEEE, pp. 239-253, 1997. "Instrument Engineers' Handbook", Process Measurement, pp. 266-333, 1969, 1982. "The IEEE P1451.1 Object Model Network Independent Interfaces for Sensors and Actuators", by J. Warrior, pp. 1-14, 1997. "The Collision Between the Web and Plant Floor Automation", by J. Warrior, 1997. "Microsoft Press Computer Dictionary", p. 184, 1997. "emWare's New Licensing Structure Lets You Pay For Networking and Internet Capability Only When You Use It", 3 pages from the Internet, Nov. 4, 1998. "Time-Frequency Analysis of Transient Pressure Signals for a Mechanical Heart Valve Cavitation Study," ASAIO Journal, by Alex A. Yu et al., vol. 44, No. 5, pp. M475-M479, (Sep.-Oct. 1998). "Transient Pressure Signals in Mechanical Heart Valve Caviation," by Z.J. Wu et al., pp. M555-M561 (undated). "Caviation Pumps, Pipes and Valves, " Process Engineering, by Dr. Ronald Young, pp. 47 and 49 (Jan. 1990). "Quantification of Heart Valve Cavitation Based on High Fidelity Pressure Measurements," Advances in Bioengineering 1994, by Laura A. Garrison et al., Bed-vol. 28, pp. 297-298 (Nov. 6-11, 1994). "Monitoring and Diagnostics of Cavitation in Pumps and Valves Using the Wigner Distribution," Hydroaccoustic Facilities, Instrumentation, and Experimental Techniques, NCA-vol. 10, pp. 31-36 (1991). "Developing Predictive Models for Cavitation Erosion," Codes and Standards in A Global Environment, PVP-vol. 259, pp. 189-192 (1993). "Self-Diagnosing Intelligent Motors: A Key Enabler for Next Generation Manufacturing System," by Fred M. Discenzo et al., pp. 3/1-3/4 (1999). "A Microcomputer-Based Instrument for Application in Platinum Resistance Thermometry," b