Auxiliary mechanical devices: commonly used are rack and pinion, chain belt, friction runner, rope reeling machinery, etc.
Low-speed end device: device after the reduction gear, such as the shaft end of the winch wire rope drum or the shaft end of the next section of the reduction gear, this method has no gear round-trip clearance, the measurement is more direct, the accuracy is higher, this method generally measures long-distance positioning, such as various lifting equipment, feeding trolley positioning, etc.
High-speed end device: installed at the end of the power motor shaft (or gear connection), the advantage of this method is high resolution, because the multi-turn encoder has 4096 circles, the number of motor rolling turns in this range can be fully used to improve the resolution, the defect is that after the moving object passes through the reduction gear, there is a gear gap error in the round-trip trip, which is generally used for one-way high-precision control and positioning, such as the roll gap control of steel rolling. In addition, the encoder is directly installed at the high-speed end, and the motor jitter must be small, otherwise the encoder will be easily damaged.
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More on that
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Pre-selection of sensors
In the early application and selection of sensors, how to choose is a very important point, and the selection is smooth, and the following will briefly talk about how the sensor is selected in the early stage.
The use of the sensor in practical operation is relatively common and may be practical ...
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How to install the safety barrier
1. The safety barrier should be installed in a safe place, and the environmental conditions meet the requirements of "application conditions" in the "Safety Barrier Selection Sample".
2. The connecting wires of the intrinsically safe end (blue end) and non-intrinsically safe end circuits of the barrier safety barrier should be laid separately in the wiring slot.
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The wiring of the load cell – we are responsible
Load cells can be wired in two different input and output ways:
One 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 the time and time of use are very convenient, but when the cable is long, it is very simple to be affected by the working temperature.
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Common faults and solutions of linear displacement sensors
1. If the electronic ruler has been used for a long time, and the seal is now 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 ...
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Frequently Asked Questions on Photoelectric Sensors – Begaff
1. How to estimate the standard detector body of photoelectric sensors?
The thrift-beam type and the regressive reflection type are based on the diagonal length of the optical structure, and the scale of the opaque body with a large diameter is used as the standard object. The general through-beam type is based on the diagonal length of the projector and receiver as the standard detection ...
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The measurement properties of our sensors
According to the nature of the measurement, sensors can be divided into three categories: physical sensors, chemical sensors and biosensors.
Physical sensors: It is the use of certain physical effects to convert the measured energy into energy that is easy to process.
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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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Solutions for ultrasonic sensor applications
In industrial use, ultrasonic sensors are characterized by high reliability and versatility. Since the ultrasonic sensor measurement method works reliably in almost all environmental conditions, even the most complex tasks can be used for a secure connection for object detection or level measurement.
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The structure of proximity sensor switches – we are blessed
1. Durability
The reason why the switch has such a long life is that the switch acts as elastic from the vertical direction of the elastic membrane. Although millions of peristalsis are carried out after the elastic membrane, because the creep rate is very small, only 0.1 - 0.3m ...
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Test method for sensor output
1. Test for NPN output sensor
The NPN sensor output, also known as OC gate output, is based on the principle of open collector output of a transistor.
The principle of NPN type OC gate output is whether the output of the NPN transistor and GND are short-circuited. When the transistor is turned on, the output and GND ( ...
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We participate in discussions on Industry 4.0 in Germany
As one of the early participants and drafters of Industry 4.0z in Germany, we were involved in the discussion of the RAMI reference architecture model. Focusing on connectivity and data presentation, through exhibitions and market applications, we have achieved relevant results, collected effective feedback, and guided our digital and physical products.
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Engineered Vibration Sensor Test Methods – Blessing
In the field of engineering oscillation testing, there are various test methods and methods, but they can be divided into three categories according to the measurement methods of various parameters and the physical properties of the measurement process.
1. Mechanical quizzes
Will the works oscillate ...
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The characteristic principle of magnetostrictive displacement sensors – we are blessed
The use of magnetostrictive elastic displacement sensors in industrial and consumer electronics is not small, and its marketed products are gradually used in metallurgy, aviation, wood processing, petroleum, industrial vehicles, bridge monitoring and other fields.
The principle of magnetostrictive displacement sensor technology is to use two different magnetic fields to ...
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Proximity sensor design considerations – a blessing on our part
Even if you don't think about the cost, there is no proximity sensor that fulfills all of its potential missions better than other sensors. Therefore, when examining the ideal proximity sensor skill for a particular application, it is necessary to consider and weight a number of attributes for their importance.
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Classification of the movement mode of the displacement sensor
The displacement sensor has no sliding contacts, is not affected by non-metallic elements such as dust during operation, has low power consumption, and has a long service life, so it can be used in various bad conditions. Displacement sensors are mainly used to intelligently control the analog quantity of automation equipment production lines.
The displacement sensor selects laser three...
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Introduction of photoelectric switches for sensors
Photoelectric switches are what we generally call sensors. **Standard GB7665-87 defines a sensor as: a device or device that can sense the specified measured part and convert it into a usable signal in accordance with certain rules, which is generally composed of a sensitive element and a conversion element.
The sensor is a ...
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Models of square proximity switches
NBB20-L2-E0-V1/ NPN normally open
NBB20-L2-E2-V1/ PNP normally open
NBB20-L2-A2-V1/ PNP normally open + normally closed
NBN40-L2-Z0-V1/ DC two-wire normally open
NBN40-L2-E0-V1/ NPN normally open
NBN40-L2-E2-V1/ PNP normally open
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The number and range of load cells – we are blessed
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 equilibrium, and secondly, it ...
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P+F proximity switch selection
1. Select the type of proximity switch according to the detected object. If the detection object is metal, the inductive proximity switch is preferred, and if the detection object is non-metal such as wood, plastic, paper, water, etc., or smaller and finer metals, the capacitive proximity switch should be selected.
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The photoelectric switches are simply classified
An important function of the photoelectric switch is to be able to handle changes in the intensity of light: the light beam is changed by using optical components in the transmission medium; Use a beam of light to reflect objects; Instantaneously returns the light emitted by the beam over a long distance.
The photoelectric switch (photoelectric sensor) is a photoelectric proximity on...
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