1. Piezoresistive pressure sensor
Resistive strain gauges are one of the main components of piezoresistive strain transducers. The working principle of metal resistance strain gauge is the phenomenon that the resistance value changes due to mechanical deformation due to the strain resistance adsorbed on the base material, which is commonly known as the resistance strain effect.
2. Ceramic pressure sensor
The ceramic pressure sensor is based on the piezoresistive effect, the pressure directly acts on the front surface of the ceramic diaphragm, so that the diaphragm produces a slight deformation, the thick film resistor is printed on the back of the ceramic diaphragm, connected into a Wheatstone bridge, due to the piezoresistive effect of the varistor, the bridge produces a highly linear voltage signal proportional to the pressure, and the excitation voltage is also proportional, the standard signal is calibrated to 2.0/3.0/3.3mV/V according to the different pressure ranges, etc., which can be compatible with strain gauge sensors.
3. Diffusion silicon pressure sensor
The working principle of the diffusion silicon pressure sensor is also based on the piezoresistive effect, using the principle of piezoresistive effect, the pressure of the measured medium directly acts on the diaphragm of the sensor (stainless steel or ceramic), so that the diaphragm produces a micro-displacement proportional to the pressure of the medium, so that the resistance value of the sensor changes, the electronic circuit is used to detect this change, and converts and outputs a standard measurement signal corresponding to this pressure.
4. Sapphire pressure sensor
Using the strain resistance operating principle, silicon-sapphire is used as a semiconductor sensitive element with unmatched metering characteristics. Therefore, semiconductor sensitive components made of silicon-sapphire are not sensitive to temperature changes and have good working characteristics even under high temperature conditions. Sapphire has strong radiation resistance; In addition, silicon-sapphire semiconductor sensitive components have no p-n drift.
5. Piezoelectric pressure sensor
The piezoelectric effect is the main operating principle of piezoelectric sensors, which cannot be used for static measurements because the charge after the action of an external force is only saved if the loop has an infinite input impedance. This is not the case, so this dictates that piezoelectric sensors can only measure dynamic stresses.
|
More on that
|
Adjustment method of the Sick WFS3-40N415 sensor
(1) Automatic calibration: When the workpiece enters the sensitive area of the probe, press and hold the "SET" button for 3 seconds, and the sensitivity value will be set and displayed in green.
(2) Two-point calibration: When the workpiece does not enter the sensitive area, hold and hold the "SET" button for three seconds, there is a ...
|
|
Sick Sensor - Introduction to photodiodes for photoelectric sensors
1. Photodiode
Photodiodes are generally in reverse operation in circuits
Dark current, photocurrent (the stronger the light, the photocurrent?) )
2. Phototransistor
There is no lead-out at the base, and the collector is positive with respect to the emitter
When the light shines on ...
|
|
Why is RFID inseparable from function blocks?
With the change of supply chain and the iterative upgrading of local technology, more and more automation sites have begun to boldly try and successfully apply domestic brand PLC, which ensures the replaceability of parts on industrial sites and improves the "safety" of production stability. Today I want to talk to you about why ...
|
|
Sick Sensors – How to use color sensors
Method 1:
Put the color sensor on the white object, turn on the red filter, at this time the sensor will emit the frequency, count the emitted frequency, when the count reaches 255, there is a time, this time is recorded as T1.
Turn on the green filter, at this point the sensor will ...
|
|
There are several undesirable fault phenomena that are common with SICK sensors
The color and number of SICK sensor wires are conveniently different. Some are six-wire sensors. However, the two sense lines are also connected to the sensor's book input signals E+ and E-, and we can ignore these two feedback lines or combine them into one. The color of each cable ...
|
|
Sick | Cameras from RIBE Technik are used to monitor the assembly facility
Quality assurance through programmable imaging: RIBE Technik from Schwabach has developed an innovative bumper assembly system that includes an inspection system.
Machine vision from SICK enables the identification of individual components and the monitoring of each operating process as a special system concept ...
|
|
Where are the main applications of Sick Sensors – Laser Distance Sensors?
Position monitoring of moving objects;
Railway catenary survey, building limit survey;
Measurement of objects that are not suitable for access;
industrial automation and intelligent production management;
Automobile speed and traffic statistics;
Industrial monitoring signal trigger control;
Tower crane ...
|
|
Sick Sensors – What are the Common Types of Proximity Sensors?
Capacitance – As the name suggests, these sensors work by recording changes in capacitance, which is a function of charge and voltage between two surfaces with an air gap or other material known as the dielectric constant. When the object to be measured enters the sensor field, it has an impact on the medium.
|
|
Debugging method of Sick fiber optic sensor 180T
1. First, connect the external hardware and install the external COM port of the scanner to the serial port of the industrial computer.
2. The power supply of the SICK scanner control box is 24V positive and negative induction eyes, and the feedback signals of 10, 11 and 12 corresponding to the electric eyes, 24V+, 24V-.
...
|
|
What are the advantages of Sick sensors – laser distance sensors?
1. Laser ranging sensor
2. Measuring distance range 0.5-300 meters, 3000 meters (to use reflector)
3. The accuracy error of the whole process is 20 mm
4. The continuous service life of the laser is more than 50,000 hours (5 years)
5. Standard RS232, RS422 ...
|
|
Sick Sensors – How to deal with failures in AGC displacement sensors
(1) Measure the clock signal and data signal of the displacement sensor of 4 hydraulic cylinders, the clock signal is about 2.8V DC and 0.123V AC; The data signals are all about 2.8V DC and 0.245V AC. From this, it can be judged that the PLC clock and MTS data bit transmission and reception pulse loops are normal ...
|
|
A detailed description of the Sick ZS36x8 series of handheld guns
With the strong addition of ZS36x8 series handheld guns, SICK's handheld barcode reading product line is becoming more and more perfect, from general to professional, from 1D code to QR code, and then from conventional label barcode to DPM direct marking barcode, we give more accurate handheld solutions for different application scenarios ...
|
|
Detailed explanation of fault judgment and maintenance of SICK sensors
Analysis of the factors that may cause the zero point change of the SICK sensor: overload will lead to a sudden change in the zero point, and the output resistance will obviously exceed the specified value impact, as above; Moisture return or turbidity, so it is mainly manifested as a continuous change of 0 point, high and low, etc., at this time, the ground resistance will be further reduced - in ...
|
|
Sick Sensors – Definition and Types of Color Sensors
1. The color sensor, also known as the color sensor, is a machine that compares the color of the object with the reference color that has been taught earlier to detect the color.
The standard color measurement method is to use a spectrophotometric colorimeter to measure the tristimulus value of the sample, so as to obtain the color of the sample.
|
|
Sick Sensors - Precautions for the use of linear displacement sensors
1. If the electronic ruler has been used for a long time, and the seal has been aged, and there are many impurities mixed with it, and the water mixture and oil will seriously affect the contact resistance of the brush, which will make the displayed numbers keep jumping. At this time, it can be said that the electronic ...
|
|
Sick Sensors – An Introduction to Seven Common Sensors
1. Physical sensor:
A physical sensor is a sensor that detects a physical quantity. It is a device that uses certain physical effects to convert the measured physical quantity into a signal in the form of energy that can be easily processed. There is a definite relationship between the output signal and the input signal. The main physical ...
|
|
Introduction to the characteristics of the Sick sensor - laser distance sensor
1. Wide measurement range and fast response;
2. Reflector is not required for long-distance measurement;
3. High measurement accuracy and large range;
4.905 nm safety laser is not harmful to human eyes;
5. Small size, easy to install and debug;
6. On-line continuous measurement to reach unmanned ...
|
|
Introduction to the advantages and disadvantages of Sick Sensors - thermistor temperature sensors
Advantages of thermistor temperature sensors:
1. Thermistors are highly sensitive and can easily detect temperature changes.
2. Most models can respond quickly to temperature changes, which can be completed in a few seconds.
3. The technology is mature, the cost is low, and the user ...
|
|
Sick Sensors – How to use the Contrast Sensor
1. There are 4 wires for the wiring sensor, among them, the red or brown wire is connected to the positive power supply, and the black wire is connected to the negative power supply; The green or blue wire is the dark output line, and the white or yellow wire is the bright output line, the user can choose one of them according to his needs, and the other is not used, but it should be insulated. Lines are not allowed ...
|
|
What are the relevant applications for Sick sensors – ultrasonic sensors?
Main applications:
Ultrasonic sensing technology is used in different aspects of production practice, and medical application is one of its most important applications. The application of ultrasound in medicine is mainly to diagnose diseases, and it has become a clinical...
|
|