MB7066 查看數據表（PDF） - Unspecified

零件编号

产品描述 (功能)

生产厂家

MB7066

XL-MaxSonar®- WR/WRC™ Series High Performance, IP67 Weather Resistant, Ultrasonic Range Finder

Unspecified 

XL-MaxSonar-WR/WRC Pin Out

XL-MaxSonar® - WR/WRC™ Series

Pin 1- Leave open (or high) for serial output on the Pin 5 output. When Pin 1 is held low the Pin 5 output sends a pulse

(instead of serial data), suitable for low noise chaining.

Pin 2- This pin outputs a pulse-width representation of range. To calculate the distance, use a scale factor of 58uS per cm.

(MB7051, MB7052, MB7053, MB7060, MB7062, MB7066)

This pin outputs the analog voltage envelope of the acoustic waveform. For the MB7070 series and MB7092 sensors, this

is a real-time always-active output (MB7070, MB7072, MB7076, MB7092, MB7150, MB7155)

Pin 3- AN-This pin outputs analog voltage with a scaling factor of (Vcc/1024) per cm. A supply of 5V yields ~4.9mV/

cm., and 3.3V yields ~3.2mV/cm. Hardware limits the maximum reported range on this output to ~700 cm at 5V and ~600

cm at 3.3V. The output is buffered and corresponds to the most recent range data.

For the 10-meter sensors (MB7051, MB7053, MB7066, MB7076) Pin 3 outputs an analog voltage with a scaling of

(Vcc/1024) per 2-cm. A supply of 5V yields ~4.9mV/2-cm., and 3.3V yields ~3.2mV/2-cm. This Analog Voltage output

steps in 2-cm increments.

Pin 4- RX- This pin is internally pulled high. If Pin-4 is left unconnected or held high, the sensor will continually measure

the range. If Pin-4 is held low the sensor will stop ranging. Bring high 20uS or more to command a range reading.

Pin 5- TX- When Pin 1 is open or held high, the Pin 5 output delivers asynchronous serial data in an RS232* format,

except the voltages are 0-Vcc. The output is an ASCII capital “R”, followed by ASCII character digits representing the

range in centimeters up to a maximum of 765 (select models) or 1068 (select models), followed by a carriage return

(ASCII 13). The baud rate is 9600, 8 bits, no parity, with one stop bit. Although the voltages of 0V to Vcc are outside the

RS232* standard, most RS232* devices have sufficient margin to read the 0V to Vcc serial data. If standard voltage level

RS232* is desired, invert, and connect an RS23* converter such as a MAX232.When Pin 1 is held low, the Pin 5 output

sends a single pulse, suitable for low noise chaining (no serial data).

*The MB7150 & MB7155 are TTL output format (inverted RS232) and follow the same ASCII data structure

V+ Operates on 3V - 5.5V. The average (and peak) current draw for 3.3V operation is 2.1mA (50mA peak) and 5V

operation is 3.4mA (100mA peak) respectively. Peak current is used during sonar pulse transmit. Please reference page 13

for minimum operating voltage verses temperature information.

GND-Return for the DC power supply. GND (& V+) must be ripple and noise free for best operation.

_______________________________________________________________________________________________________________________________________

About Ultrasonic Sensors

Our ultrasonic sensors are desired for use in air, non-contact object detection and ranging sensors that detect objects

within a defined area. These sensors are not affected by the color or other visual characteristics of the detected object.

Ultrasonic sensors use high frequency sound to detect and localize objects in a variety of environments. Ultrasonic sensors

measure the time of flight for sound that has been transmitted to and reflected back from nearby objects. Based upon the

time of flight, the sensor then outputs a range reading.

_____________________________________________________________________________________________________________________________________

Auto Sensitivity Adjustment

Each time before the XL-MaxSonar-WR takes a range reading it auto calibrates. The sensor then uses this data to range

objects. If the temperature, humidity, or applied voltage changes during sensor operation, the sensor will continue to

function normally. (The sensors do not apply compensation for the speed of sound change verses temperature to any range

readings.) If the application requires temperature compensation please look at the HRXL-MaxSonar-WR sensor line.

_______________________________________________________________________________________________________________________________________

Supply Voltage Compensation

During power up, the XL-MaxSonar-WR sensor line will calibrate itself for the supply voltage. Additionally, the sensor

will compensate if the supplied voltage gradually changes.

If the average voltage applied to the sensor changes faster than 0.5V per second, it is best to remove and reapply power to

the sensor. For best operation, the sensor requires noise free power. If the sensor is used with noise on the supplied power

or ground, the accuracy of the readings may be affected. Typically, adding a 100uF capacitor at the sensor between the V+

and GND pins will correct most power related electrical noise issues.

MaxBotix® Inc.

Copyright 2005 - 2021 MaxBotix Incorporated

Patent 7,679,996

MaxBotix Inc., products are engineered and assembled in the USA

Page 2

Web: www.maxbotix.com

PD11838v

Share Link: