Selection criteria for proximity switches

First, the first component blocking may be the wrong way of the device, the pressure point is unreasonable, so we often emphasize that the device must be the correct device, once the installation is wrong, maybe the installation is not good, it will bury endless hidden dangers for the back. What are the primary components? Orifice plates, remote transmission measuring joints, etc.

What is the reason for the detection signal when no metal object is close to the switch? The magnitude of the electromagnetically induced voltage is proportional to the current of the disturbance source, that is, the larger the disturbance current, the greater the disturbance voltage. If the proximity switch does not adopt any ...

A sensor is an input device that receives a signal or stimulus and responds to it. Some sensors now integrate many sensing elements and readout circuitry into a single silicon chip, which then provides high accuracy and multiple functions. The new sensor has more functions, including user friendliness.

1. Classification according to the engraving method of the code disc (1) Incremental type: that is, a pulse signal is announced every time the viewpoint of the unit is turned (there is also a sine and cosine signal, Then it is subdivided and choppered out of a higher frequency pulse), which is generally output for phase A, phase B, phase Z, phase A, ...

Overhead monorail conveyors are used for internal transportation of production materials. They are popular in the car industry, where engines, drivetrains, doors and entire car bodies are transported along the production line, for example. A complete monorail conveyor system is composed of a trajectory system and a plurality of monorail conveyors ...

During the epidemic, Huoshenshan Hospital, which rose from the ground within 10 days, made foreign netizens exclaim miracles. This is a life-and-death contest against the epidemic, and it is also a speed that Chinese are proud of. Behind the "China speed", advanced construction equipment is indispensable, in which the project ...

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.

The first is pressure, and the transmitter can't afford to lose it. In this case, see if the pressure connector is leaking or clogged, if you admit that it is not, look at the wiring method and see if the power supply is normal, simple pressure to confirm if the output has changed, or if there is an output at the zero point of the sensor ...

The difference between NPN type and PNP photoelectric switching sensors lies in the different output levels. NPN outputs low, PNP then outputs high. The type of photoelectric switch is a very specialized technical issue. What are photoelectric switches NPN and PNP? What are their differences? ...

In the field of industrial automation, there is always the challenge of connecting the individual sensor components on movable machine components. Regardless of their mechanical structure, the use of e-chains® or slip rings tends to wear or crack slightly. As a result, their durability is limited, and together they cause ...

1. Position with the sensor installation boss, and fix it on the metal plate with screws, nuts or pressing plates. When installing the sensor, it is strictly forbidden to turn and drill the shaft and shell to avoid the shaft or shell being subjected to external impact and pressure, and the axial and radial direction of the shaft is not allowed to be subjected to impact force and pressure ( ...

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. ...

There are two common types of sensor switches: NPN type and PNP type, so let me tell you what are the differences and differences between them? For example, there is a switch VT in the NPN type open collector output circuit, and the output OUT is connected to the power supply 0V through the switch VT ...

Based on the characteristics of fixed force measurement, the sensor principle structure is selected as a resistance strain force sensor with mature technology and low requirements for the measurement circuit, and the elastomer of one of the key components of the sensor is selected S-beam structure, as shown in Figure 1. When subjected to pressure P, the ...

The accelerometer is a sensor that can measure acceleration, this sensor can help the product to understand the environment in time, and it is very accurate, so what is the structure of its sensitive core? 1. Compression method: ...

The air pressure sensor is a control sensor that can be operated according to the barometric pressure end sensing. Inside the air pressure sensor, an air intake tube is provided that can promise air ingress, and once the power is applied, air can be transferred to the inside of the sensor, and when air enters, squeeze sensing occurs ...

First of all, the following points should be paid attention to when wiring the encoder: 1. It is necessary to use a metal cable bracket and ensure that the bracket connection is connected to the ground; 2. The cable should be arranged as close to the metal parts as possible, such as control cabinet panels, beams and metal rails, etc.

Ultrasonic sensors are used for the inspection of printed circuit boards (PCBs): In this application, ultrasonic sensors are used to inspect printed circuit boards. So what factors need to be considered when installing and installing ultrasonic sensors ...

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 ...

Sofis, an expert in the operation of valves in the process industry, relies on sensors for its latest treatment solution, the "Valve Orientation Indicator" (VPI). VPI provides an overview of the orientation of manual valves in the plant network. Combined with integrated sensors and automatic detection...