High Intensity Acoustic Sensors: 765M30 & 765M35 Models

The High Intensity Acoustic Sensors (Microphones) Models 765M30 and 765M35 are developed for the monitoring of gas-borne sound in industrial applications. These sensors are compatible with type 316 stainless steel diaphragms and are designed for usage in corrosive settings.

When paired with the all-welded structure, the electrically isolated, coaxial stainless steel hermetic connection creates a perfect hermetic seal.

Electrically, Models 765M30 and 765M35 use piezoceramic sensing elements in a balanced and floating design to enable improved rejection of electrical noise in a variety of industrial settings. The inherent acceleration sensitivity of the acoustic element is eliminated by an inbuilt accelerometer. When utilized with a real differential input amplifier, the best results are obtained.

For customized versions of this sensor, contact the manufacturer.

High temperature to +500 Deg F

Vibration compensated

Electrically isolated

High sensitivity (2100 pC/psi)

Specifications

Transfer/Electrical

Table 1. Source: Columbia Research Laboratories, Inc.

Environmental

Table 2. Source: Columbia Research Laboratories, Inc.

Physical

Table 3. Source: Columbia Research Laboratories, Inc.

NOTE: The unit is hermetically sealed when the connector is mated or protected.

Image Credit: Columbia Research Laboratories, Inc.

Accessories Supplied

Standard Calibration Data

Low Noise Cable Assembly (3M) (300 pF)

Hardwood Storage Case