PRESS RELEASE
October 31, 1995
New Micro-Machined Sensor Chip
Enhances Pressure Transducer Specification

The latest family of pressure sensors to be released by EG&G IC Sensors of Milpitas, California, incorporates a sealed, micro-machined silicon strain gauge transducer, which the company claims, results in significantly better performance and 50% lower unit cost, than previous industry norms.
The manufacturer states that the Ultra chip design has reduced transducer non-linearity to +/-0.1% and expanded the temperature compensation range to -20oC to 85oC, for working pressure ranges of
0-1 bar (0-15psi) up to 0-35 bar (0-500 psi), and 0-70 bar (0-1000psi) up to 0-350 bar (0-5000psi).
The compact, rugged design especially suits the transducers for embedded, OEM applications such as process instrumentation pressure and liquid level transmitters, manufacturing machinery and robotics, where low cost and simplicity of installation are paramount.

The new design improves measurement performance and long term reliability while, at the same time, broadening the application base by reducing the cost and simplifying installation, EG&G IC Sensors reports. Key factors in achieving these objectives are the Ultra, micro-machined, silicon strain gauge sensor and the mechanical design of the sensor package.
Long term, reliable pressure measurement of corrosive media relies on effective isolation of the sensor from the media. Diaphragms and sealing fluids, which are designed to isolate the sensor, often introduce measurement errors due to mechanical losses in the diaphragm and expansion and contraction of the sealing fluid as a result of temperature variations. The manufacturer claims their design has addressed these limitations by novel diaphragm design and fabrication techniques, and by minimizing the volume of the silicon sealing fluid.
The new sensor family is offered in two models, Model 96 with pressure ranges of 0-1 bar (0-15psi) up to 0-35 bar (0-500 psi), and Model 97 with pressure ranges of
0-70 bar (0-1000psi) up to 0-350 bar (0-5000 psi). Each model has a 1/4 inch NPT pressure connection and a five conductor ribbon cable for connection of the excitation current and the voltage output signal.
The excitation current required is 1.5mA and the output signal 0-100 mV for both models. In addition to the OEM applications, the Model 96 and 97 family are targeted at applications as diverse as medical drug infusion instrumentation, hydraulic control systems, and tank pressure monitoring for SCUBA dive computers.
EG&G IC Sensors specializes in the design and manufacture of silicon, micromachined pressure sensors, accelerometers and micro-valves, which are marketed worldwide./ins



Caption: EG&G IC Sensors Model 96 and 97 silicon strain gauge pressure transducers feature ranges from 0-1 bar to 0-350 bar, +/-0.1% non-linearity, and temperature compensation from -20oC to 85oC.

For further information, please contact:
In the U.S:
EG&G IC Sensors Inc.
Linda Duprel
1701 McCarthy Blvd.
Milpitas, California 95035
USA
Tel: +1 408 432 1800
Fax: +1 408 432 7322

In India:
Electronic Enterprises
Ashok Patankar
Post Bag No. 6367, Unit 216
Regal Industrial Estate
Acharya Donde Marg, Sewri
Bombay-400 015, India
Tel: (91) 224 137 096
Fax: (91) 224 133 341




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