1. Materials
Load cells require stringent parameters such as creep of the output signal, temperature drift and zero point stability, so the metal properties of the sensor elastomers such as deformation, internal stress relief, as well as zero point stability and temperature compensation on the strain gauge are more demanding. On the other hand, load cells have higher requirements for opposing overloads and anti-offset loads.
2. Auxiliary materials
In terms of sealing, the load cell is generally fixed with epoxy resin, but it only has the effect of sealing maintenance; Due to the working conditions, load cells are more cluttered than load cells, so high-temperature resistant insulating adhesives are generally used. Sealing and fixing allow the sensor to vibrate and pull at very high frequencies without disconnecting the wires. In the selection of strain gauges, the load cell generally uses a constantan strain gauge, and the load cell generally uses a special Cama grid wire or platinum grid strain gauge.
3. Performance requirements
Load cells are generally used for transaction settlement or monitoring, so the accuracy of the sensor, long-term stability, creep, zero runout, temperature drift and other parameters are very important.
Load cells are generally used to monitor or detect force magnitude and quantitative fatigue testing, so the repeatability and reliability of the sensor are required.
4. Application occasions
When using load cells, only the force perpendicular to the horizontal plane to the center of the earth can be measured. Load-bearing structures focus on "elasticity". Weighing platforms generally have connecting parts and spherical attachments to ensure uniform force alignment.
The load cell is capable of measuring forces in any direction. Therefore, it is necessary to consider at least 20% of the transverse force, shear force and eccentric load of the maximum bearing capacity value in the direction of the force in the planning to improve the accuracy of the integration error and prevent damage to the sensor.
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Turck expands its two-wire general-purpose product range
Since September 2020, Turck has expanded its portfolio of general-purpose products to include 2-wire general-purpose inductive sensors. Since the introduction of the universal 3-wire product, the general-purpose product family has been greatly developed, and the product is now used in various types of customers. Pass...
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Turck wins the 2020 αi Quality Workplace "Excellence in Growth and Win-Win Award"
On November 25, 2020, the 2020 αi annual selection ranking of high-quality positions was officially announced. Turck stood out from more than 2,900 companies that participated in the application and won the 2020 αi Award for Outstanding Growth and Win-Win Awards.
The Turks ...
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The internal composition of the tension force sensor
1. Sensor body: including the sensor's shell, mechanical structure, circuit board, etc.
2. Deformation element: It is the most important part of the tension sensor, which converts the force into signal output. Commonly used deformation elements are strain gauges, piezoresistive sensors, piezoelectric crystals, and compact gases.
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Force Alignment Sensors for Bridge Data Detection – Turck
The bridge viewing method is to use the sensor to perceive the physical quantity of the measured object, convert the perception signal into a telecommunication signal output according to the fixed law, collect the electrical signal of the sensor with the active collection equipment, transmit the data to the remote server through the wireless data transmission module, complete the information processing, storage...
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Turck's pressure transmitters have no output cause
Generally, when encountering the situation that the pressure transmitter has no output in the field, people always subconsciously think that there is something wrong with the pressure transmitter, but this damage only accounts for a small amount in practice.
In many applications, pressure transmitters may be used separately and in combination with other equipment or systems.
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Introduction to the types of proximity switches – Turck
1. Eddy current proximity switch
This type of switch is sometimes called an inductive proximity switch. It is the use of conductive objects to produce eddy currents inside the object when approaching the proximity switch that can generate an electromagnetic field. This eddy current reacts to the proximity switch and causes the internal circuit parameters of the switch to change, ...
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Turck presents IO-Link-enabled pressure sensors
Turck's PT1000/2000 series pressure sensors are now available with an IO-Link interface and two programmable switching outputs. In addition to the series' ability to withstand shocks, pressures, and temperature changes, the new products also offer all the advantages of digital communication, including enhanced ...
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What is an SOI high-temperature pressure sensor – Turck
Pressure sensor is a kind of equipment used to detect pressure signals and convert pressure signals into electrical signals according to certain rules, which are widely used in various production, industry and aerospace fields. With the subdivision of application fields, the pressure in high-temperature and harsh environments such as high-temperature oil wells and various engine cavities ...
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In terms of industrial sensor selection – Turck
1. According to the measurement target and measurement environment
In order to carry out a detailed measurement work, it is necessary to first consider the principle of the sensor to choose, which needs to be analyzed and many elements can be confirmed. Because, even if the same physical quantity is measured, there are sensors with multiple principles to choose from.
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Torque transducers – Turck
1. Straightness
The degree to which the practical connection curve between the sensor output (voltage) and the input (torque) deviates from the ideal straight line. General requirements: ≤ ±2%.
2. Hysteresis
The difference in voltage between all test positions during the test stroke. General Requirements: ...
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The difference between Turck sensors and actuators
Sensors and actuators keep an eye on different signals, operate in different ways, and must work together to complete the mission. They are also physically located in different areas and are often used in solitary applications.
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Corrosion solutions for pressure sensors – Turck
Pressure sensors are used in all walks of life, especially in the industry, which uses a lot of pressure sensors, but the industry generally requires that the pressure sensor can be anti-corrosion, and the pressure sensor joint and cavity are made of imported stainless steel.
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Turck's newer, faster I0-Link encoder
Turck's encoder series has been strategically expanded even further. We can now consider our customers to offer newer and faster encoders with IO-link interfaces.
Expansion of the product range
As part of Turck's product range ...
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Turck's fail-safe product family
Fail-safe systems are now an integral part of machinery and plant automation. With the latest complete fail-safe modules, Turck continues to be a driver of distributed automation concepts in these areas and provides support for those who plan to develop a wide range of products in the field of machine hardware and related ...
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Detection of load cell damage – Turck
1. Observe whether the appearance of the sensor is deformed and cracked. If this happens, contact the sensor manufacturer to replace the sensor.
2. Find the sensor connection terminal of the weighing controller (weigher) and measure the sensor connection circuit.
In general, the excitation voltages (EXC+ and EX...
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Turck's method for commissioning pressure sensors
An example of Turck's debugging method for turck pressure sensors is as follows: Select a 0.08-2MPa planned controller, request the pressure to be reduced to 0.8MPa (down switching value) to announce the contact signal, and the operation process is as follows:
Screw the product into the hydraulic pressure ...
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Torque sensor test method
The mature test method of torque sensor is strain electric measurement technology, which has the advantages of high accuracy, fast frequency response, good reliability and long life.
A special change strain gauge is pasted on the elastic shaft with a strain adhesive to form a strain bridge. If a working power supply is supplied to the strain bridge, ...
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The cause of signal distortion measured by the sensor is Turck
In what ways does the signal fail to manifest Allah? Why is the signal unstable? Generally, the output signal is unstable due to transient temperature changes that cause the bias voltage to fluctuate and fluctuate. How to deal with it? A sensor with a stable bias voltage is used for processing.
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Turck proximity sensors and their models
Turck's proximity sensors, also known as contactless proximity switches, are ideal electronic switching sensors. When the metal detector is close to the sensing area of the switch, the switch can be contactless, pressure-free, non-sparking, and issue electrical commands, accurately reflecting the position and stroke of the moving mechanism, even if it is used for a ...
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Selection of pressure sensors – Turck
1. Recognize the type of pressure sensor
(1) Electromechanical: The internal mechanical structure of the product, the pressure sensor made of springs, levers, dispatching screws, metal housings, etc., and contact module equipment, does not contain processing circuits inside, and the output is the pressure switch side of the switching quantity.
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