Resistive strain gauges, elastomers, and detection circuits are the first and foremost parts of the equation. An elastomer is a special shaped structure. It has two functions, firstly, it bears the load of the force on the cell and the external force, to achieve a relatively static balance, and secondly, it is a high-quality strain field (zone), in this category of the ambition of the strain resistance strain gauge paste jujube electrical signal conversion to complete the mission.
Resistance strain gauge load cells are based on a criterion: the elastic deformation of the elastomer (elastic element, sensitive beam) under the action of external forces, so that it is also accompanied by deformation, the resistance value of the resistance strain gauge deformed on the surface of the resistance strain gauge (conversion element) will change (increase or decrease), and then, the corresponding change in the resistance of the measuring circuit is converted into an electrical signal (voltage or current), thus completing the process of converting the force into an electrical signal.
Generally, the load cell should be operated within 30%-70% of its range. However, for some scales with greater impact force in the application process, such as dynamic rail scales, dynamic truck scales, steel scales, etc., when selecting the load cell, it is generally necessary to expand its range, so that the load cell operates within 20%-30% of its range, so that the weighing storage range of the load cell is increased, so as to ensure the safety and life of the load cell. The choice of load cell type depends on the type of weighing and the space of the equipment to ensure that the equipment is suitable and the weighing is safe and reliable.
On the other hand, consider the recommendations of the load cell manufacturing plant. The manufacturer will generally be based on the load cell force situation, function policy, equipment method, structural type, elastomer material and other characteristics of the load cell application plan, such as aluminum cantilever beam load cell is suitable for pricing scales, floor scales, portable scales, etc., steel cantilever beam load cells are suitable for hopper scales, electronic belt scales, sorting scales, etc., steel bridge load cells are suitable for rail scales, truck scales, crane scales, etc., column load cells are suitable for truck scales, dynamic rail scales, large tonnage hopper scales, etc.
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Wiring of weighing strain gauge tension and compression sensors – we are in control
Strain gauge tension and compression load cells are available in two different input and output wiring methods:
The first is the four-wire connection method.
The load cell of the four-wire connection method has no special requirements for the secondary instrument panel, and it is very convenient to use, but when the cable is long, it is easy to be shaken by the operating temperature.
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The type of proximity switch
The proximity sensor, also known as the contactless proximity switch, is an ideal electronic switch sensor. When the metal detector approaches the sensing area of the switch, the switch can be contactless, pressureless, patternless, quickly issue electronic commands, accurately respond to the position and stroke of the action mechanism, and even ...
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We made a wonderful appearance at SIAF 2022
The 2022 Guangzhou World Industrial Automation Skills and Equipment Exhibition (SIAF) landed at the China Import and Export Fair Complex on March 3, kicking off the prelude to this year's industrial automation career exhibition. As the driver and innovator of Industry 4.0, we continue to provide customers with the future of the future.
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The choice of torque transducer – we are blessed
1. Selection of reliability
The potential of a sensor to persist in its properties over a period of time is called reliability. In addition to its own structure, the key factor affecting the long-term reliability of the controller is the use of harsh environments.
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Load cells with low power consumption and low cost – we are all in good hands
Types of load cells:
Electrical strain gauge load cells:
One widely used principle is the color of a resistive strain gauge (resistance strain gauge), where the resistance is changed to an electrical output, which is then passed through an instrument to measure the mass.
Capacitive load cells: low power consumption and low cost. The principle of ...
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Q&A on ultrasonic sensor technology
Q1: How does the ultrasonic sensor work?
Ultrasonic sensors are used to measure the detection function of emitting high-frequency sound pulses that are inaudible to the human ear, which are dispersed in the air into a conical shape and reflected back as soon as they hit an object. Ultrasonic ...
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Wireless HART technology for industrial processes
WirelessHART uses the 2.4 GHz band (which is no-nonsense and globally) as a transmission medium for a variety of radio skills, including WLAN, Bluetooth, and ZigBee. However, WirelessHART is more than just a variant of WLAN.
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The selection of proximity sensors follows the essentials – the blessing of the United States
For different raw material detection bodies and different detection intervals, different types of proximity sensors should be selected to make them have a high performance-to-price ratio in the system, for which the following principles should be followed in the selection:
1. When the detector body is a metal material: high-frequency oscillation proximity ...
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Exhibit at productap China 2019
On March 20, at the 2019 Munich Shanghai Electronic Production Equipment Exhibition, the reporter of Zhihui Industry interviewed Mr. Xiao Dong, the sales manager of the South China Region of the company, and Mr. Xiao shared the history of the company's development, the strategy of shopping malls in China, and the latest products brought by the company at this exhibition.
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Industrial applications of rotary encoders
Rotary encoders are a class of sensors used to detect the angle of rotation and its derived mechanical parameters, including velocity and acceleration, etc., and can detect transmission movements such as rotation and linear lines. Due to its widespread use, rotary encoders convert mechanical inputs into electrical signals, which can be used by counters, tachometers, programmable...
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Torque sensors in the field of robotics – we are blessed
Torque sensor is a sensor widely used in the mechanical category, which can measure the torque of rotating objects, and torque sensors have a wide range of application scenarios, and several typical application scenarios will be introduced below. First of all, the short-term sensor is widely used in the automotive industry to measure the engine and transmission.
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Ultrasonic sensors are easy to install and assemble – we are blessed
Ultrasonic sensors are used for the inspection of printed circuit boards (PCBs), where ultrasonic sensors are used to inspect printed circuit boards. So what factors need to be considered when installing and installing ultrasonic sensors?
Ultrasonic sensors are capable of being installed and operated in any orientation, ...
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P+F precautions for the use of safety barriers
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Zero drift of high-frequency pressure sensors – we are blessed
There are several reasons for the formation of zero drift of high-frequency pressure sensors:
1. There are bubbles or impurities in the adhesive layer of the strain gauge
2. The function of the strain gauge itself is unstable
3. There are virtual solder joints in the circuit
4. The stress release of elastomers is incomplete; In addition to the magnetic field, ...
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A common problem with the failure of pressure sensors – our sensors
First, the problem of the pressure sensor sealing ring
If the output of the pressurized transmitter does not change, and the output of the pressurized transmitter changes suddenly, and the zero position of the pressure relief transmitter cannot be returned, it is likely that the problem of the pressure sensor sealing ring. It is common because of the standard reason of the sealing ring, the sensor is tightened ...
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How to choose a pressure sensor fitting – we are blessed
There are not many single ferrule terminal joints on the market now, and most manufacturers are using double ferrule terminal joints, and the market price is about 9-18 yuan, and the price is different according to different types. Fittings, whether double ferrule end fittings or single ferrule end fittings, are all selected.
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Selection criteria for proximity switches
Points to note in the selection of proximity switches
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A brief introduction to our sensors
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Benefits of our industrial sensors
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The new WIS2 wireless sensing system is available
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