Description 

E-188 

The Massa Model E-188 is a miniature ultrasonic air transducer having many applications in short range, high resolution, non-contact sensing and remote control. The transducer operates at either 215 kHz or 220 kHz, depending upon model selected. A unique design feature results in the transducer having a narrow directional pattern completely free of all minor lobes. Each transducer is provided with two feet of coaxial cable. Additional types of termination are available on special order.

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

  • Proximity Detection

  • Security Sensing

  • Robotics

  • Short Range Measuring

  • Systems


Features

  • High Frequency Operation

  • Narrow Beam

  • No Minor Lobes

  • Small Size

 

 

SPECIFICATIONS

 

E-188/215

E-188/220

Frequency at Receiving Sensitivity

 

215 kHz

+/- 2.5 kHz

220 kHz

+/-2.5 kHz

Bandwidth
(Transmitting)

 

25 kHz

25 kHz

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

 

+20

+20

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

 

-77

-77

Driving Voltage
(10% Duty Cycle)

 

50 V p-p

50 V p-p

Nominal Impedance

 

1000 Ohms

1000 Ohms

Total Beam Angle
(-3 dB) Conical

 

10 deg.

10 deg.

Operating Temperature

 

0-70 C

0-70 C

Humidity

 

0-90%

Non-condensing

Weight

 

10 grams

10 grams

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

 

Return to Home