Sensors measure gas-borne sound in industrial applications

Units are designed for use in corrosive environments, and are electrically isolated.

02/16/2010


Columbia Research industrial acoustic sensors
New acoustic sensors (microphones) from Columbia Research Laboratories Inc. are designed for the measurement of gas-borne sound in industrial applications. Models 765M25 and 765M27 are constructed of Type 316 stainless steel for use in corrosive environments, are electrically isolated, and offer high sensitivity (1200 pC/psi) and temperature range from -10 to +500° F.

Electrically, these devices comprise sensing elements of piezoceramic material in a balanced and floating configuration to provide enhanced rejection of electrical noise associated with many industrial environments. These come with a variety of connector and mounting options, all of which provide a true hermetic seal when combined with the all welded construction of the units.
The two models differ only in their electrical connections. The model 765M25 incorporates a miniature 10-32 fused-glass coaxial connector. Model 765M27 provides a 2-pin connector interface. Optimum performance is achieved when used with a true differential input amplifier.
Columbia Research Laboratories , Inc. is ISO9001:2000 with Design & AS9100 Revision B certified.
For more information, sales@columbiaresearchlab.com
- Edited by Renee Robbins, senior editor

Control Engineering News Desk

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