NH Research designs and manufactures power-electronics test instruments and automatic test systems. Its products are used worldwide by manufacturers in the switching power supply, UPS, computer, telecommunications, industrial controls and defense industries. Applications typically involve the final test of power conversion products where test equipment performance, reliability and support are critical to both quality standards and production schedules. Located in Irvine, California, NH Research has been in this business for over 30 years.
http://www.simpsonelectric.com
Simpson Electric manufactures analog and digital panel meters and test instruments for industiral, laboratory and environmental applications. Simpson was established in 1934 by Ray Simpson. Ray built the mechanism for the earth inductor compass used during Charles Lindbergh's solo trans-Atlantic flight in 1927. Simpson was purchased by the LacDuFlambeau Band of the Lake Superior Chippewa Indians in 1985 and is a minority-owned company. Our reliable, high quality products continue to be manufactured in the U.S.A.
ADWEL International Ltd. is a growing company and leading manufacturer of specialized test equipment for the electric power industry. Originally called FES International Ltd., the company has been in business since 1986. ADWEL International is the pioneer in the supply of on-line partial discharge analysis (PDA) systems for monitoring stator insulation condition on generators and motors. ADWEL International's head office is in Toronto, Canada with a European branch office in Watford (near London), UK. In 1996 FES International Ltd. expanded by acquiring ADWEL Industries Ltd. of Great Britain and changed its name to ADWEL International Ltd. ADWEL Industries had been the original manufacturer of the widely used Electromagnetic Core Imperfection Detector (EL CID) instrument. The EL CID instrument is a safer, easier, low-power alternative to the ring flux (a.k.a. loop) test for measuring the integrity of stator cores. In addition to PDA and EL CID, ADWEL International Ltd. offers the electronic Wedge Tightness Detector (WTD), Robotic Inspection Vehicle (RIV), Motor Core Tester (MCT), Corona Probe and Magnastart (a slip-ring motor starter). These products and services are used by utilities, motor rewind companies, heavy industrial users and manufacturers of large generators and motors. In 1998 ADWEL International Ltd. expanded again, acquiring the former Electrical Testing Instruments Ltd. of Toronto. This acquisition expanded our product line into general-purpose electrical test instruments like winding resistance testers, micro-ohmmeters, transformer ratiometers and current transformer test sets. In June of 2007 IRIS Power and ADWEL International have combined forces to better serve a broad spectrum of the global electrical testing & measurement market. Through merging the IRIS leadership in Partial Discharge Analysis (PDA) testing with the ADWEL expertise in Stator Core testing of generators & motors, clients will now have direct access to the widest selection of on-line and off-line insulation, stator core and T&D testing products and services in the electric power industry.
Giga-tronics Incorporated. designs, manufactures and markets a line of test and measurement equipment used in the development, test and maintenance of wireless communications products and systems, flight navigational equipment, electronic defense systems and automatic testing systems. Giga-tronics also manufactures and markets a line of test, measurement and handling equipment used in the manufacturing of semiconductor devices. The Company's products are sold worldwide to customers in the test and measurement and semiconductor industries. Giga-tronics conducts its business through its Giga-tronics Instrument Division, and two subsidiary companies: ASCOR, Inc. and Microsource, Inc. (Source: 10-K)
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