(1) Resistance shunt: practice is a resistance with a very small resistance value, when there is a current through, according to Ohm's law, the voltage occurs in the resistance, and the current is known according to the measured voltage value. The resistance shunt has high precision, fast response speed, low cost, simple use, and the defect is that the equipment itself is not blocked, and the power consumption is large when measuring large currents;
(2) Current transformer (CT): The current transformer is based on the principle of electromagnetic induction, converting the primary side large current into the secondary side small current for measurement and protection of the equipment, its primary side winding turns are very small, the wire diameter is thick, and the primary side is connected in series in the line that needs to measure the current, and the secondary side is prevented from opening the circuit. The advantage of the current transformer is that it has an electrical barrier, and the disadvantage is that it can only measure the AC circuit;
(3) Hall current sensor: including open-loop Hall current sensor and closed-loop Hall current sensor, closed-loop Hall current sensor expands the output voltage of Hall equipment, and then after current expansion, the current passes through the compensation coil, and the magnetic field generated by the compensation coil is opposite to the direction of the magnetic field generated by the measured current, and the original magnetic field is compensated, so that the output of Hall equipment is gradually reduced, so that Hall equipment works at zero magnetic flux. Open-loop Hall current sensor, when the primary current IP flows through a long wire, a magnetic field occurs in the toroidal core, the size of this magnetic field is proportional to the current flowing through the wire, the generated magnetic field is gathered in the magnetic ring, measured and enlarged by the Hall element in the magnetic ring air gap, and the output voltage reflects the primary current according to the share.
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Turck Sensor Systems is the basis for agricultural applications
The next stage of development in agriculture is data-driven, requiring solid sensor skills in the field. Turck products can be operated with a driver-assisted system and then fully automated farming. In the steer-by-wire system, the QR20 encoder measures the axle ...
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Turck at CEMAT Logistics
Intelligent production is a hot topic of global concern, and it is also the primary direction of the transformation and upgrading of China's manufacturing industry. One of the important links is how intelligent logistics can serve intelligent production, and the allocation of production materials can be seamlessly connected with intelligent production. CeMAT is held under the theme of "Smart ...
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Precautions for the installation of load cells in Turck
First of all, when using load cells, it is necessary to adjust the orientation of the sensors. Think of the sensor as a fragile product, cut the oscillation of the sensor, and try to handle it gently, because many sensors have elastomeric devices planned internally, and these elastomeric devices are critical to the stability of the sensor, ...
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Turck's RFID read/write head for zone 1/21
Turck is expanding its Industry 4.0 portfolio into hazardous areas and is committed to becoming a provider of end-to-end IoT solutions for process automation occupations. As an automation specialist, with the TN-R42/TC Ex, Turck offers not only high-frequency RFID reads and writes that are certified for direct use in ATEX zone 1/21...
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Turck's flow sensors are based on the heat exchange principle
Based on the principle of heat exchange, Turck's flow sensors use energy changes to detect wear-free changes in flow velocity, and send an alarm signal through the processing circuit, with LED indicators indicating the flow status:
1. Traffic ...
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The difference between load cells and load cells – Turck
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. And the load cell ...
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Introduction to TURCK's various sensors
Inductive sensors
Inductive sensors are capable of detecting metal objects in a non-tactile and wear-free manner. To do this, they use high-frequency communication electromagnetic fields to interact with their targets. Their strengths are durability, robustness, high switching frequencies, and long service life. Cause...
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BGS principle for Turck sensors' photoelectric sensors
When the photoelectric switch is used, it is usually seen in the operation manual that the operating principle of Turck sensors is BGS, so what is BGS? What kind of work does it depend on?
The full English name of the so-called BGS principle is background suppression, that is, the meaning of the set press, so ...
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Intake pressure sensor failure response – Turck
1. The internal circuit of the sensor is open or short-circuited;
2. The output signal of the sensor cannot change with the change of the vacuum degree of the inlet pipe;
3. The voltage of the output signal of the sensor is too large or too small, and its value violates the stop range.
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Introduction to the types of flow sensors – Turck
Flow is an important parameter in industrial production, in the process of industrial production, many raw materials, semi-finished products, and finished products are presented in a fluid state. The flow rate of the fluid has become the key to determining the composition and quality of the product, and it is also an important basis for production cost accounting and rational use of energy. Thus...
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Turck's RFID module now features FLC
Turck's TBEN-S-RFID block I/O modules are now available as a field logic controller
Ahead of SPS IPC Drives 2017 (Industrial Automation in Nuremberg, Germany), Turck has expanded its TBEN-S-RFID ...
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The main function of the proximity switch is Turck
Check the distance
Detect the abortion, start, and passing direction of elevators and lifting equipment; Detect the orientation of the vehicle to prevent two objects from colliding with each other; Detect the set orientation of the working machine, the limit orientation of the moving machine or component; Detect the abort position of the rotary body and the opening or closing position of the valve.
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Comparison of old and new Turck modules
Old model New model
BL67-16DO-0.1A-P MC 0116 0101
BL 67-1RS232 MC 2501 0000
BL 67-1RS485/422 ...
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Are AC and DC contactors interchangeable?
1. The AC contactor can be used as a substitute for the DC contactor in an emergency, and the suction time can not exceed 2 hours (due to the poor heat dissipation of the AC coil than the DC, which is determined by their different structures).
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Turck's temperature sensor is selected
(1) Whether the temperature of the measured target needs to be recorded, alarmed and automatically controlled, and whether it needs to be measured and transmitted at a distance.
(2) The size and accuracy of the temperature measurement range.
(3) Whether the size of the temperature measuring element is appropriate.
(4) When the temperature of the measured target changes with time, the temperature measuring element lags behind ...
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Turck offers a wide range of solutions at CEMAT
Intelligent production is a popular category that the world attaches great importance to, and it is also the main direction of the transformation and upgrading of China's manufacturing industry. One of the important links is how intelligent logistics can serve intelligent production, and the equipment of production materials can be seamlessly connected with intelligent production. CeMAT is held under the theme of "Smart ...
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Classification of electrical strain gauges – Turck
Resistance strain gauge is a kind of element used to measure strain, which is made of 0.02-0.05mm diameter constantan wire or nickel-chromium wire wound into a grid (or corroded into a grid with a very thin metal foil) in two layers of insulating sheet (substrate), and is connected with tinned copper wire and strain gauge wire as a strain.
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Strain Characteristics of Pressure Sensors – Turck
Pressure sensors have been widely used in recent years, many products are in use, according to different types of test pressure, pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors, what are the strain characteristics of pressure sensors?
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The correct way to use linear position sensors – Turck
A linear displacement sensor is an electrical signal device that converts linear mechanical displacement into a linear or arbitrary function relationship through a potentiometer element. The potentiometer planned to complete the measurement of displacement intent must require a confirmation relationship between the change in displacement and the change in resistance. So so...
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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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