Montreal, Québec, – May 12, 2008 – Microbridge Technologies, Inc., the leader in passive, analog precision calibration products (Rejustors), today announced three new devices that extend the companys reach into the high temperature, military/aerospace and energy exploration markets. Available in two basic types, the Rejustors target the need for precision and accuracy in extreme temperature environments and offer a lifetime drift of well less than 1%.
The new Rejustors have no mechanical moving parts and are ideal for vibration sensitive applications such as calibrating electronics for Jet engine monitoring instruments, voltage regulators, downhole drilling, military, furnace and boiler, strain gauge and vibration sensors. These applications benefit from improved reliability, dependability, dust and moisture resistance over mechanical parts as well as from the lowest noise and widest bandwidth of any adjustable resistor technology available.
“These three new high temperature Rejustors from Microbridge offer precision and accuracy performance levels that have previously not been achievable,” said Felix Levinzon, principal engineer at Endevco. “The long-term resistance stability of individual Rejustors is better than 1%, up to thousands of hours at 225°C. We are pleased to have helped Microbridge characterize many of its high temperature devices.”
“HT-Rejustors also set new, lower price points and provide the ability to easily adjust circuit parameters for aging effects years after the product has been deployed,” said Bob Frostholm, vice president of marketing at Microbridge. “They are especially suitable for downhole exploration because as oil and gas reserves are getting more difficult to find, more sophisticated and accurate equipment is needed to locate these smaller reserves.”
Features
Each Resistor element is independently electrically adjustable to any value from its nominal, down to 80% of nominal value. The MBH-273-AS1 (Type I Rejustor) is a pair of nominally 27KΩ Rejustors and offers a precision adjustment of < 0.1% while maintaining a +/- 2.5% tolerance over the entire operating temperature range of -55°C to +230°C. Type II Rejustors are designed to offer superior resistance tolerances of +/- 0.7%, “tuned” for a narrower 50°C “window” or band within the high temperature operating range. MBH293-AS2, for example, has a pair of nominally 29KΩ Rejustors that can be acquired as a Type IIA, offering 0.7% tolerance between 150°C and 200°, or as a type IIB, offering the same 0.7% resistance tolerance over the 175°C to 225°C range.
HT-Rejustor dividers are temperature stable so that the ratio between the two resistors is predictable within +/-1% regardless of adjustment state of either HT-Rejustor, as long as both HT-Rejustors are at the same temperature. Precision resistance adjustment of each HT-Rejustor is accomplished by changing the physical properties of the resistor under control of Rejustor Calibration tools and Rejust-it software. The adjustment process is typically complete within 1-2 seconds.
Pricing & Availability
Available directly from Microbridge, the MBH-273-AS1 Type I is priced at $6.95 for quantities of 1,000. The MBH-293-AS2 Type IIA is priced at $7.64 for a 1,000 pieces while the MBH-293-AS2 Type IIB is priced at $8.34 for a 1,000 pieces.
For sales enquiries, contact Microbridge at [email protected]
For more information on Rejustors, please click on mbridgetech.com/whitepaper.php for a Microbridge technical whitepaper on Rejustors.
About Microbridge Technologies
Microbridge Technologies, Inc. is the leading manufacturer and licensor of next step electronic calibration products and solutions in the consumer, automotive, medical and other industries that need to improve manufacturing yields and productivity and enter new markets. Microbridge’s resistor calibration products (Rejustor™) and enabling technology are the first integrated calibration and temperature compensation systems for analog circuit designs and production. Microbridge’s technology enables product designers to achieve one-step calibration and passive adjustment, is adaptive and adjustable in circuit, and it allows calibration in the analog domain to improve the design of current and future products. Microbridge is a privately held company with headquarters in Montreal, Canada and offices in Boston, Mass and San Jose, Calif. For more information please visit www.mbridgetech.com.
