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 ...
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.
Because the appearance of the six-wire sensor and the six-wire four-wire sensor can not be distinguished, before the measurement and verification personnel test the sensor, if they find that the sensor input and output cable has six wires, it should be clear whether the sensor is a six-wire sensor, and the six-wire load cell test can not use a fine digital voltmeter...
Under normal circumstances, a photoelectric sensor consists of two parts: a processing path and a processing element. Its basic principle is to use the photoelectric effect to convert the measured change into a change in the optical signal, and then use the optoelectronic components to further convert the non-electrical signal into an electrical signal. The "photoelectric effect" refers to the use of light ...
Because of its high precision, high speed and reliability, CNC machine tools have been rapidly spread throughout the enterprise in the upgrading of manufacturing technology and equipment. CNC machine tool is an automatic machine tool equipped with a program control system, which makes the machine tool move and process parts according to the programmed program. It...
The pass-through beam device consists of an acceptor located within the line of sight of the transmitter. In this mode, an object is detected when the beam is blocked from the transmitter to the receiver. The retroreflective device places the transmitter and receiver in the same direction, and uses the reflector to ...
What is the function of the throttle orientation sensor? The primary function of the throttle azimuth sensor is to detect whether the starting motor is in the idle condition or the load condition, and whether it is in the acceleration condition or the deceleration condition. The shaft of the resistor is linked to the throttle, it has two contacts: a fully open contact and an idle ...
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 ...
The dynamic characteristics of a sensor refer to the characteristics of the output of the sensor when the input changes. In practice, the dynamic characteristics of the sensor are often indicated by its echo to some normative input signals, because the echo of the sensor to the normative input signal is easy to obtain by experimental methods, ...
1. Grating pollution This will reduce the signal output amplitude, and the oil must be quietly wiped off with absorbent cotton dipped in anhydrous alcohol. 2. Encoder connection cable fault: the probability of this fault is high, and it is often encountered in repair, which should be the priority factor. Generally, the encoder cable is broken ...
1. It is necessary for the sensor to be properly installed Damage to high-temperature pressure sensors is usually caused by their installation in improperly machined holes. When a sensor is loaded into a hole that is too small or has a migraine, it may damage the sensor diaphragm and cause the instrument to not function properly. Can...
Although the resistance strain gauge load cell itself is a solid, reliable and reliable electromechanical product, the following points should be taken into account when using it to ensure test accuracy: 1. Some "baffles" should be set around the load cell as much as possible, ...
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, ...
Torsion bar torque transducer is mainly composed of torsion bar tension spring, rotation-displacement converter, and potentiometer. The main function of the torsion bar tension spring is to detect the torque of the driver acting on the steering wheel and convert it into the corresponding corner value. The angle-displacement converter is a pair of spiral mechanisms that stretch the torsion bar.
The servo press drives the fine ball shaft through the synchronous belt to complete the accurate orientation control of the pressure spindle, and the high-sensitivity pressure sensor equipment is at the front end of the pressure spindle, which can detect the load of the pressure spindle in real time. Real-time collection of orientation and load data to complete the fine ...
1. The basic output method of torque sensor signal is: square wave signal and pulse signal. Voltage analog signal output or current analog signal output (unidirectional, static torque measurement) can be made according to user needs. 2. Twist ...
1. Fault judgment When the electronic scale presents the following phenomena, it is necessary to see whether the load cell presents a problem. 1) If the electronic scale does not show zero, the display screen continues to shine or show zero in the future, and the weighing number does not appear when weighing. 2) Electric ...
1. The linear displacement sensor should be used to prevent over-travel in the application, and a certain margin should be left in the selection to facilitate the use of the device. 2. The linear displacement sensor device is fixed by a bracket, and then the follow-up shaft is connected to the moving object to be measured. When the sensor is fixed in the device, it can be ...
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 ...
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, ...
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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