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What capacitive proximity sensors can detect – and what we can detect
Proximity switch is a kind of azimuth switch that can be operated without mechanical direct touch with moving parts, when the sensing surface of the object proximity switch to the action interval, the switch can be operated without mechanical touch and any pressure, so as to drive DC electrical appliances or computer (PLC) ...
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Classification and principle of displacement sensors
According to the principle of operation:
Potentiometer-type displacement sensor
It converts the mechanical displacement through the potentiometer element into a resistive or voltage output that is linearly or arbitrarily linked to it. Generally, linear potentiometers and round potentiometers can be used as linear and angular displacement sensors, respectively. ...
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P+F precautions for the use of safety barriers
The safety barrier, also known as the safety energy limiter, is an important part of the intrinsic safety system. There are two main types of safety barriers: P+F Zener barriers and P+f barrier barriers. The core components of the Zener barrier are Zener diodes, current-limiting resistors and fast fuse wires.
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The role and classification of safety barriers
In electrical intrinsic safety explosion-proof (abbreviation: intrinsically safe explosion-proof), we generally divide the workplace into explosion-proof area and non-explosion-proof area. There is the transmission of electrical energy between the explosion-proof area and the non-explosion-proof area, for example, the switches, buttons, sensors, etc. in the explosion-proof area are connected to the non-explosion-proof area through the wires.
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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 application of P+F sensors
Positioning, Navigation, Sorting...... The completion of various functions of mobile robots can be said to be inseparable from the role of sensors, and with the continuous expansion of the scope of use of mobile robots, the environment they face is more complex and diverse, and the requirements for sensors are also constantly improving.
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Sensor installation points – a blessing
Device points (device bolts)
The sensor of the device is fastened with high-strength bolts of the specified grade. (8.8, 10.9, etc.).
For sensors that require a gasket for the device, a washer must be placed on the bolt before it can be installed.
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Selection criteria for proximity switches
Points to note in the selection of proximity switches
1. The working voltage of the proximity switch output is selected, generally DC type DC24V or AC AC250V optional;
2. Proximity switch output method selection, generally NPN-normally open, NPN-...
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Intake Pressure Sensor Problem Response – Blessing to the Blessing
The inlet pressure sensor is abbreviated as MAP. It connects the intake manifold with a vacuum tube, and induces the vacuum change in the intake manifold with the different speed loads of the engine, and then converts the change of internal resistance from the sensor into a voltage signal, which is used by the ECU computer to correct the fuel injection amount and ignition timing angle. Other words...
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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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The steps of the use of the photoelectric switch
1. Self-conditioning. At the beginning of use, please check whether the switch itself is defective and whether the appearance is defective.
2. When using the EL130 photoelectric switch to avoid obstructions, some goods such as colored goods. Less reflective goods. Goods with large gaps between small pieces ...
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Introducing the sensor
From leveling cranes and monitoring the inclination of front-end loaders to operating elevators, inclination and acceleration sensors can be used in a variety of ways. These sensors are guaranteed to measure even in harsh conditions. Thanks to the innovative split unit concept, the F99 series ...
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Doujiafu helps intelligent robots to fight against the war
Now that the prevention and control of the new pneumonia epidemic has entered a critical period, how can it be useful to reduce cross-infection in hospitals and prevent the spread of the epidemic? Reduce the operational pressure of front-line medical personnel and help prevent and control the epidemic? All of them have become the key policies that have attracted wide attention. From long-distance medical care to intelligent robots ...
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Sensor Selection Considerations – Benefit Us
In order to carry out a detailed measurement operation, it is necessary to first consider the principle of the sensor, which needs to be determined after analyzing many factors. Since, even if the same physical quantity is measured, there are multiple principles of sensors to choose from, which principle of sensor is more suitable, ...
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Common faults of displacement sensors – we are blessed
The working principle of the straight line is the same as that of the sliding rheostat, it is used as a voltage divider, it is the actual orientation of the measured direction with the relative output voltage. There are the following requirements for the operation of this equipment:
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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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Anti-jamming technology for sensors – we are blessed
1. Shielding skills
Containers are made from metal materials. Wrapping circuits that require maintenance between them can effectively prevent the disturbance of electric or magnetic fields, which is called shielding. Shielding can be divided into electrostatic shielding, electromagnetic shielding and low-frequency magnetic shielding.
2. Electrostatic shielding
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Classification of rotary encoders
There are two main types of encoders, incremental encoders and affirmative encoders. The incremental encoder reads the change in the viewpoint displacement, while the affirmative encoder reads the positive viewpoint of the encoding axis. They are done using three common skills, i.e., optical, mechanical, or magnetic.
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P+F proximity switches are indicated by letters
SQ proximity switch,
CE Forward Push Button SBF Reverse Push Button SBR Stop Button SBS Panic Button SBE Test Button SBT Reset Button SR Limit Switch SQ Proximity Switch SQP Manual Control Switch SH Moment Control Switch SK Level Control Switch SL Humidity Control ...
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Encoder classification form
1. Classification according to the way of engraving the disc is different
(1) Incremental type: that is, every time the viewpoint of the unit is rotated, a pulse signal is announced (there is also a sine and cosine signal, and then it is subdivided, and the pulse with a higher frequency is chopped), which is generally output for phase A, phase B and Z, and phase A and phase B are ...
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