1. Whether the temperature of the measured target needs to be recorded, alarmed and automatically controlled, and whether it needs to be measured and transmitted at a distance;
2. The size and accuracy requirements of the temperature measurement scale;
3. Whether the size of the temperature measuring element is appropriate;
4. When the temperature of the measured target changes with time, whether the hysteresis of the temperature measuring element can adapt to the temperature measurement requirements;
5. Whether the environmental conditions of the measured target damage the temperature measuring element;
6. The price is guaranteed, and whether it is convenient to use.
Temperature sensors are measured indirectly by the fact that an object changes certain characteristics as it changes with temperature. The characteristics of many materials and components change with the change of temperature, so there are quite a lot of materials that can be used as temperature sensors. The physical parameters of the temperature sensor change with temperature: expansion, resistance, capacitance, and electromotive force, magnetic properties, frequency, optical properties, thermal noise, etc. With the development of production, new temperature sensors will continue to emerge.
|
More on that
|
Detailed description of the hysteresis function of ifm ifm sensors
ifm sensors can be used for many different purposes. Here are some of the most common features of sensors.
ifm sensors have hysteresis function, if the system pressure changes around the preset value, the hysteresis function can be ...
|
|
Faulty temperature sensor in cold storage – ifm
1. The exhaust temperature of the refrigeration unit is high, the coolant level of the refrigeration unit is too low, the oil cooler is dirty, the oil filter core is blocked, the temperature control valve is faulty, the oil-off solenoid valve is not energized or the coil is damaged, the oil-cut solenoid valve diaphragm is broken or aging, the fan motor is faulty, the cooling fan is damaged, and the exhaust pipe is not ...
|
|
The LMT series of ifm level sensors
The liquid level sensor launched by ifm electronics - LMT series sanitary liquid level sensor, this series of sensors is made of high-grade stainless steel 316L material shell, compact structure, can reach IP68/69K protection level, reliable and stable function, can be thoroughly used in sanitary areas, suitable for food ...
|
|
Analysis of sensor technical indicators - ifm
Because of the many technical goals of sensors, various data and literature have different perspectives, so that different people have different understandings, and even misunderstandings and ambiguities. To this end, the following are some of the top technical objectives of sensors:
1. Resolving power and resolution:
Definition...
|
|
Analysis of the characteristics of the ifm PN series pressure sensor
360-degree comprehensive dissection from the inside to the outside, the perfect characteristics of the net red PN series pressure sensor
Superior corrosion resistance
Ordinary pressure sensors use metal diaphragms, and PN pressure sensors use ceramic diaphragms to sense pressure, ...
|
|
The main classification of current sensors is ifm
(1) Resistance shunt: It is actually a resistance with a very small resistance value, when there is a current passage period, according to Ohm's law, the voltage occurs in the resistance, and the current size is known according to the measured voltage value. The resistance shunt has high precision, fast response, low cost, simple use, and disadvantages ...
|
|
Selection and testing of ifm proximity switches
1. Proximity switch selection
Different types of proximity switches should be selected for different raw material detectors and different detection intervals to have a high-performance price ratio in the system, for which the following principles should be followed in the selection:
1. When the detector body is metal material, the high-frequency oscillation type should be selected.
|
|
Considerations for the selection of industrial sensors
1. According to the measurement object and measurement environment
In order to carry out a specific measurement operation, it is necessary to consider the principle of the sensor first, which requires an analysis of many factors. Since, even for the measurement of the same physical quantity, there are sensors with multiple principles to choose from.
|
|
Sensors in the mass flow controller – ifm
The mass flow manipulator is a new type of flow measurement and monitoring instrument, as well as an instrument that can conveniently monitor the activity of different gases in the pipeline without temperature and pressure compensation. Its working principle is to send the flow signal measured by the heating bridge of the sensor to the amplifier for amplification, and the enlarged ...
|
|
ifm UGT505 is used to improve air quality
Green City Solutions is committed to improving urban air quality. As a result, they developed CityTree, the world's first bio-skill air filter. The filter is integrated in the UGT505.
CityTree uses ...
|
|
Afm S-type pressure sensor structure
The S-type sensor is actually a deformation of the parallel beam structure, so it is not only highly accurate but also easy to use, and has many applications, such as the modification of hopper scales and weighbridges. S-type sensors are now widely used in industrial manipulation and inspection sites. Because of its high-frequency dynamic response, it is mainly used for ...
|
|
Basic parameters of load cells – ifm
A load cell (also known as a load cell) is a type of sensor that converts a physical force signal into an electronic signal. From the basic principle, it is divided into strain type, piezoresistive type, piezoresistive type, foot type, etc.
Non-repeatability: In the same ring ...
|
|
Common faults and maintenance methods of IFM pressure sensors
1. When the pressure goes up, the output of the transmitter can't go up
In this case, you should first check whether the pressure interface is leaking or blocked, if you confess that it is not, check the wiring method and check the power supply, if the power supply is normal, then briefly pressurize ...
|
|
Mathematical modelling for the diagnosis of sensor faults – ifm
Diagnose sensor faults based on mathematical models? When there is a problem, the first time is to diagnose it, see where the problem is, so that it is easy to deal with, from different angles, we use more than one method when diagnosing the problem, if this is classified, it can be divided into two ...
|
|
High-frequency pressure sensor output signal – ifm
The conversion of the pressure to the electrical signal is done by the physical deformation of the strain gauge, and the strain gauge is bonded to the diaphragm of the pressure sensor and wired into a Wheatstone bridge structure. The pressure exerted on a high-frequency pressure sensor causes the diaphragm to flex, which causes the strain gauge to strain. Strain will occur ...
|
|
General knowledge of controlled systems for ifm controllers
Principles of the control system of IFM controllers:
The IFM ifm controller is a process that continues to detect the unit to be manipulated (control variable x) and compares it with the reference variable w, and according to the results of the comparison, the control variable is affected to get used to the reference variant. In most cases, ...
|
|
Moisture-proof method for sensors – ifm
As an accurate detection device, if the sensor is damp, it will be troublesome, the sensor will affect its accuracy and stability when it is damp, and it will form a problem if the sensor is used in a more important place, then the loss of the formation is very heavy. In '08 there was a ...
|
|
Select the appropriate mounting holes for ifm sensors
ifm sensors have a lot of precautions at the time of installation, and it is necessary to pay attention to the orientation of the device, if the device orientation is not suitable, it will also form damage to the pressure sensor.
ifm sensors are required to be checked at the time and time of the device.
|
|
Diffuse photoelectric sensor target impact
1. The larger the object, the more light is reflected and the farther the sensing interval is.
2. For visible red light sensors, light colors can be detected at a greater scale than dark colors. The color of the target object has a much smaller effect on the infrared light sensor. Compared to a flat or matte appearance, a highly reflective ...
|
|
ifm flow sensor solutions
ifm flow sensor solutions. IFM Flow Sensor SV5200, Vortex Flow Sensor with User Friendly Display, Circuit Connection Can Be Rotated for Optimal Arrangement, With Switching Output or Frequency Output, and IO-Link for Reliable Flow Detection ...
|
|
Contact
working hours
