Description 

E-152/40 

The Massa Model E-152/40 is a miniature air ultrasonic transducer having many applications in short range sensing and remote control where non-contact is desired. The transducer operates at 40 kHz, its fundamental resonant frequency, thereby producing a relatively broad directional response, free of minor lobes. The housing and diaphragm are one piece and made from stainless steel to provide high resistance to corrosive atmospheres. Each transducer is provided with 2 feet of twisted pair cable potted in at the back of the housing. Other lengths of cable or different terminations are available on special order.

E-152/75 

The Massa Model E-152/75 is physically the same as the E-152/40 but operates at 75 kHz. Operation at 75 kHz permits better resolution and performance in short range applications. 

Massa Products Corporation is a leading designer and manufacturer of a wide variety of electroacoustic transducers and systems for use in air and under water, with over 50 years of specialized experience in this field. 

Applications

  • Distance Measurement Systems

  • Proximity Detection Systems

  • Security Sensing Systems

  • Robotics

  • Ultrasonic Counting

Features

 

  • Small Size

  • Corrosive resistant diaphragm/housing

  • Smooth Directional Response

  • Operates at fundamental resonant frequency

 
 

SPECIFICATIONS

 

E-152/40

E-152/75

Frequency at Receiving Sensitivity

 

40 kHz

+/-2kHz

75 kHz

+/-2 kHz

Bandwidth Tuned

14 kHz

20 kHz

Bandwidth Untuned

 

1 kHz

1 kHz

Transmitting Sensitivity
(dB vs. 1 mbar per volt at 1 ft. untuned

 

+10

+10

Receiving Sensitivity
(dB vs. 1 volt/mbar untuned)

 

-57

-62

Rated Power

 

10 mW

10 mW

Nominal Impedance
at minimum resonance

 

1000 W

1000 W

Total Beam Angle
(-3 dB) Conical

 

75 deg.

60 deg.

Operating Temperature

 

0-70 C

0-70 C

Humidity

 

0-90%

Non-condensing

Weight

 

6 grams

6 grams

All Specifications typical at 20 C and barometric pressure at 760 mm of mercury and subject to change without notice.

 

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