LJ18A3-8-Z-BX 8mm Inductive Proximity Sensor
LJ18A3-8-Z-BX 8mm Inductive Proximity Sensor
The LJ18A3-8-Z-BX is a high-quality, 8mm inductive proximity sensor designed for detecting the presence or absence of metal objects. This sensor is suitable for a wide range of industrial automation applications, including robotics, machine tools, and conveyor systems.
The LJ18A3-8-Z-BX inductive proximity sensor works on the principle of electromagnetic induction, where an oscillating magnetic field is generated by a coil inside the sensor. When a metal object enters the detection zone, it disturbs the magnetic field, inducing an electromotive force (EMF). The sensor detects this change in the EMF and outputs a signal indicating the presence of the metal object.
The LJ18A3-8-Z-BX has a detection range of 8mm, making it suitable for detecting small metal objects or sensing the presence of metal in tight spaces.
The sensor operates at a frequency range of 20 kHz to 100 kHz, ensuring reliable detection and minimizing interference from external noise sources.
The sensor features a selectable output, allowing users to choose between NPN (normally open) or PNP (normally closed) output configurations, depending on their application requirements.
The LJ18A3-8-Z-BX operates on a supply voltage range of 12 V to 24 V DC, making it compatible with a wide range of industrial automation systems.
The sensor has a fast response time of 500 s, enabling it to detect objects rapidly and accurately.
The LJ18A3-8-Z-BX can be configured to operate in either normally open (NO) or normally closed (NC) detection modes, depending on the application requirements.
The sensor housing is made from high-quality PBT material, providing excellent resistance to chemicals, heat, and mechanical stress.
The LJ18A3-8-Z-BX has an IP67 rating, ensuring the sensor is protected against dust ingress and can withstand immersion in water up to 1 meter for 30 minutes.
The sensor operates reliably in a wide temperature range of -25C to 70C, making it suitable for use in various industrial environments.
The sensor comes with a standard 2-meter cable length, but custom lengths can be provided upon request.
| The LJ18A3-8-Z-BX 8mm inductive proximity sensor is suitable for a wide range of industrial automation applications, including |
Robotics and machine tools
Conveyor systems and material handling
Packaging and manufacturing
Food processing and pharmaceutical industries
Access control and security systems
Please refer to the datasheet or manufacturer's documentation for detailed technical specifications, including dimensions, electrical characteristics, and environmental requirements.
LJ18A3-8-Z-BX 8mm Inductive Proximity Sensor DocumentationOverviewThe LJ18A3-8-Z-BX is an 8mm inductive proximity sensor designed for detecting the presence of metal objects. This sensor operates on the principle of electromagnetic induction, generating a magnetic field that induces eddy currents in nearby conductive materials. The sensor outputs a digital signal when the detected object is within the sensing distance.Technical SpecificationsSensing distance: 8mm
Operating voltage: 6-36V DC
Output type: Digital (PNP or NPN)
Response time: 1ms
Operating frequency: 500Hz
Temperature range: -25C to 70CPinoutThe LJ18A3-8-Z-BX has a 3-pin connector:VCC (1): Power supply (6-36V DC)
GND (2): Ground
OUT (3): Digital output signalCode Examples### Example 1: Basic Object Detection using ArduinoThis example demonstrates how to use the LJ18A3-8-Z-BX with an Arduino board to detect the presence of a metal object.```c
const int sensorPin = 2; // Connect the OUT pin to digital pin 2 on the Arduino
const int ledPin = 13; // Connect an LED to digital pin 13 on the Arduinovoid setup() {
pinMode(sensorPin, INPUT);
pinMode(ledPin, OUTPUT);
}void loop() {
int sensorState = digitalRead(sensorPin);
if (sensorState == HIGH) {
digitalWrite(ledPin, HIGH); // Turn on the LED when an object is detected
} else {
digitalWrite(ledPin, LOW); // Turn off the LED when no object is detected
}
delay(50);
}
```### Example 2: Using the LJ18A3-8-Z-BX with Raspberry Pi (Python)This example demonstrates how to use the LJ18A3-8-Z-BX with a Raspberry Pi to detect the presence of a metal object using Python.```python
import RPi.GPIO as GPIO
import time# Set up the GPIO library
GPIO.setmode(GPIO.BCM)# Set up the sensor pin as an input
sensor_pin = 17
GPIO.setup(sensor_pin, GPIO.IN)try:
while True:
sensor_state = GPIO.input(sensor_pin)
if sensor_state:
print("Object detected!")
else:
print("No object detected")
time.sleep(0.1)
except KeyboardInterrupt:
GPIO.cleanup()
```### Example 3: Using the LJ18A3-8-Z-BX with ESP32 (MicroPython)This example demonstrates how to use the LJ18A3-8-Z-BX with an ESP32 board to detect the presence of a metal object using MicroPython.```python
import machine
import time# Set up the sensor pin as an input
sensor_pin = machine.Pin(32, machine.Pin.IN)while True:
sensor_state = sensor_pin.value()
if sensor_state:
print("Object detected!")
else:
print("No object detected")
time.sleep_ms(100)
```These examples demonstrate the basic usage of the LJ18A3-8-Z-BX inductive proximity sensor. You can modify the code to suit your specific application requirements.