ultrasonic transducer

Precision Ultrasonic Range

Sensing

• Range-finding at a fraction of the

cost of other precision rangefinders

• Reading-to-reading stability of

1-mm at 1-meter is typical

• Accuracy is factory-matched at

1-meter to 0.1% providing a typical

large target accuracy of 1% or better

for most voltages and uses1

• Calibrated acoustic detection zones

allows users to choose the part

number with the detection zone that

matches their specific application

• Compensation provided for target

size variation and operating voltage

range

• Internal temperature compensation is

standard

• Optional external temperature

compensation

Very Low Power

Requirements

• Wide, low supply voltage

requirements eases battery powered

design

• Low current draw reduces current

drain for battery operation

• Fast first reading after power-up

eases battery requirements

Easy to use Component

Module

• Stable and reliable range readings

and excellent noise rejection make

the sensor easy to use for most users

• Easy to use interface with distance

provided in a variety of outputs

• Target size compensation provides

greater consistency and accuracy

when switching targets

• Sensor automatically handles

acoustic noise1,2

• Sensor ignores other acoustic noise

sources

• Small and easy to mount

• Calibrated sensor eliminates most

sensor to sensor variations

• Very low power ranger, excellent for

multiple sensor or battery based

systems

Range Outputs

• Pulse width, (1uS/mm)

• Analog Voltage, (5mm resolution)

• Serial, (RS232 or TTL, where TTL

format by solderable jumper or

volume orders available as no-cost

factory installed jumper)

General Characteristics

• Low cost ultrasonic rangefinder

• Sensor dead zone virtually gone,

• Size less than 1 cubic inch with easy

mounting

• Object proximity detection from

1-mm to 5-meters

• Resolution of 1-mm

• Distance sensor from 30-cm to

5-meters

• Excellent2 Mean Time Between

Failure (MTBF)

• Triggered operation yields a

real-time

• 100mS measurement cycle

• Free run operation uses a 2Hz filter,

with 100mS measurement and

output cycle

• Operating temperature range

from -15°C to +65°C, provided

proper frost prevention is employed

• Operating voltage from 2.5V to 5.5V

• Nominal current draw of 2.5mA at

3.3V, and 3.1mA at 5V

Applications & Uses

• Bin level measurement

• Proximity zone detection

• People detection

• Robots ranging sensor

• Autonomous navigation Distance

measuring

• Long range object detection

• Environments with acoustic and

electrical noise

• Height monitors

• Auto sizing