1. Avoid scum deposited in the catheter and contact the transmitter with corrosive or overheated media.
2. When measuring the gas pressure, the pressure port should be opened at the top of the process pipeline, and the transmitter should also be installed at the upper part of the process pipeline, so that the accumulated liquid can be easily injected into the process pipeline.
3. When measuring the liquid pressure, the pressure faucet should be opened next to the process pipeline to avoid sediment.
Fourth, the pressure catheter should be installed in the place where the temperature fluctuation is small.
5. When measuring the liquid pressure, the device orientation of the transmitter should avoid liquid impact (water hammer phenomenon), so as to avoid damage to the sensor under pressure.
6. When freezing occurs in winter, it is necessary to adopt anti-freezing measures for the transmitter installed outside to avoid the expansion of the pressure inlet due to the amount of ice, resulting in the loss of the sensor.
7. When wiring, pass the cable through the waterproof joint or winding pipe and tighten the sealing nut to avoid rainwater leakage through the cable to the transmitter housing.
8. When measuring steam or other high-temperature media, it is necessary to add a condenser, such as a buffer tube (coil), and the working temperature of the transmitter should not exceed the limit.
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Pressure control of servo presses – we are blessed
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 ...
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A little bit about photoelectric sensors – a blessing
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 ...
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The cause of drift in temperature and humidity sensors – Blessing
1. The temperature and humidity sensor will drift during use, which is impossible to avoid.
2. The fundamental reason for the drift is that all pressure sensors are based on the elastic deformation of a kind of material, no matter how outstanding the elasticity of the raw material is, after each elastic recovery, there will always be ...
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Precautions for the use of linear displacement sensors - double blessing
Whether it is a linear displacement sensor or a rope displacement sensor, it often encounters a variety of problems when it is used, including quality problems, application problems, environmental problems, etc., but the use of problems is common, and improper use is easy to damage the sensor.
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The output signal of the torque sensor is the sensor of the company
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 ...
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Classification and Principle of Resistive Sensors – BEBF
The resistive sensor and the corresponding measuring circuit are composed of force, pressure, weighing, displacement, acceleration, torque and other measuring instruments for metallurgy, electric power, transportation, petrochemical, commercial, biomedical and national defense departments to carry out automatic weighing, process detection and realize the automation of the production process.
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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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How to choose a sensor in the early stage?
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 say how the sensor is selected in the early stage.
The Viewpoint Sensor is in the real ...
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Pressure sensor zeroing calibration matters - double blessing
1) It is recommended to place the pressure sensor and its tee valve at the level of the axillary line, which is used for ventilation and sensor zeroing.
2) Approve the maintenance cap on the three-way valve to be perforated, connect the sensor with the monitor, and follow the instructions of the monitor to ...
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Static and dynamic characteristics of sensors – we are blessed
1. Static characteristics of the sensor
The static characteristics of a sensor are related to the static input signal, the output and input of the sensor. Since the input and output are moment-independent at this point, the connection between them (i.e., the static properties of the sensor) can be used in an algebraic equation without time variables.
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Encoder failure and selection matters - Bejiafu
An encoder is a device that compiles or converts signals or data into signals that can be communicated, transmitted, and stored. The encoder converts angular or linear displacement into an electrical signal.
Fault Symptom:
1. The encoder itself ...
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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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The difference between DC and AC contactors – we are blessed
1. The core is different: the core of the communication contactor will suffer eddy current and hysteresis loss, while the DC contactor has no core loss. Therefore, the core of the communication contactor is made of mutually insulated silicon steel sheets, and is often made into an E-shape; The core of the DC contactor is made of a single piece of mild steel, ...
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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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The FDH-1 simplifies bus installation
1. Mastery: Take control of your bus
The handheld bus diagnostic device FDH-1 can be regarded as an increasingly intelligent multimeter. It only needs to press a button to quickly view any network segment. And it can work independently, which is a good addition to the engineer's stuff box.
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The difference between NPN type and PNP type in sensor switches – we are blessed
There are two common types of sensor switches: NPN type and PNP type, so what are the differences and differences between them?
For example, there is a switch VT in the NPN open collector output circuit, and the output OUT is through the switch ...
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There are two types of encoders and common models
An encoder is a device that compiles or converts signals or data into signals that can be communicated, transmitted and stored – encoders can be divided into two categories: incremental and absolute.
Incremental encoders are the most important way to convert bits ...
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Cable protection systems for harsh conditions
In addition to getting used to mechanical shock, pressure, and tensile strain, sensor cables are often exposed to chemical environments. While traditional sensor cable planning is often not sufficient to meet these requirements, the new cable maintenance system has been developed with this intention in mind, guaranteeing ...
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Understanding sensor accuracy – a blessing
There are three goals of precision: precision, correctness, and precision.
precision
It sheds light on the sloppy nature of the measurement results. That is, for a certain stable goal (to be measured) by the same measurer ...
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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:
1 ...
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