HYDAC pressure sensor

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HYDAC pressure sensors in Germany are traditionally based on mechanical structural components

A pressure sensor is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to certain rules.

Pressure sensors typically consist of pressure sensitive components and signal processing units. According to different types of testing pressure,HYDAC pressure sensorIt can be divided into gauge pressure sensors, differential pressure sensors, and absolute pressure sensors.

Pressure sensors are the most commonly used sensors in industrial practice, widely used in various industrial automation environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, petrochemicals, oil wells, power, ships, machine tools, pipelines and many other industries.

overloadHYDAC pressure sensorIt is a type of sensor, but we rarely hear of this HYDAC pressure sensor. It is usually used in transportation applications to maintain the performance of heavy-duty equipment by monitoring the pressure, fluid, flow, and liquid level of key systems such as pneumatic, light-duty hydraulic, brake pressure, oil pressure, transmission devices, and truck/trailer air brakes.

The heavy-duty HYDAC pressure sensor is a pressure measurement device with a housing, metal pressure interface, and high-level signal output. Many sensors are equipped with circular metal or plastic housings, with a cylindrical appearance, one end being a pressure interface and the other end being a cable or connector. This type of heavy-duty HYDAC pressure sensor is commonly used in temperature and electromagnetic interference environments. Customers in the industrial and transportation fields use HYDAC pressure sensors in their control systems to measure and monitor the pressure of fluids such as coolant or lubricating oil. At the same time, it can also detect pressure spike feedback in a timely manner, detect system blockages and other issues, and find solutions in real time.

The heavy-duty HYDAC pressure sensor has been constantly developing. In order to be used in more complex control systems, design engineers must improve sensor accuracy while reducing costs for practical applications.

The basic principle of multi-sensor information fusion technology is similar to the process of the human brain synthesizing and processing information, which involves complementing and optimizing various sensors at multiple levels and spaces to ultimately produce a consistent interpretation of the observed environment. In this process, it is necessary to fully utilize multi-source data for reasonable control and use, and the ultimate goal of information fusion is to derive more useful information based on the separated observation information obtained by each sensor through multi-level and multi-faceted combination of information. This not only takes advantage of the collaborative operation of multiple sensors, but also comprehensively processes data from other information sources to improve the intelligence of the entire sensor system.

Pressure sensors are the most widely used type of sensor. Traditional HYDAC pressure sensors mainly use mechanical structural components to indicate pressure through the deformation of elastic elements. However, this structure is large in size and heavy in weight, and cannot provide electrical output. With the development of semiconductor technology, semiconductor HYDAC pressure sensors have also emerged. Its characteristics are small size, light weight, high accuracy, and good temperature characteristics. Especially with the development of MEMS technology, semiconductor sensors are moving towards miniaturization, with low power consumption and high reliability.

Diffuse silicon pressure transmitter

The diffusion silicon pressure transmitter is made by encapsulating isolated silicon piezoresistive pressure sensitive elements in a stainless steel shell. It can convert the sensed liquid or gas pressure into standard electrical signals for external output. The DATA-52 series diffusion silicon pressure transmitter is widely used for on-site measurement and control of industrial processes such as water supply/drainage, heat, petroleum, chemical, metallurgy, etc.

Semiconductor piezoresistive type

The semiconductor piezoelectric impedance diffusion HYDAC pressure sensor forms a semiconductor deformation pressure on the surface of a thin sheet, which deforms the sheet through external force (pressure) to produce a piezoelectric impedance effect, thereby converting the impedance change into an electrical signal.

Electrostatic Capacity Type

The electrostatic capacitance type HYDAC pressure sensor forms a capacitor by opposing the fixed electrode of glass and the movable electrode of silicon, and converts the change in electrostatic capacitance generated by the deformation of the movable electrode through external force (pressure) into an electrical signal. The operating principle of E8Y is electrostatic capacitance method, while other models use semiconductor method.

The wiring of sensors has always been one of the most frequently consulted questions by customers during the procurement process. Many customers do not know how to wire sensors. In fact, the wiring methods of various sensors are basically the same. HYDAC pressure sensors generally have two-wire, three wire, four wire systems, and some even have five wire systems.

The two-wire system for pressure sensors is relatively simple, and most customers know how to wire them. One wire is connected to the positive pole of the power supply, and the other wire, which is the signal wire, is connected to the negative pole of the power supply through the instrument. This is the HYDAC pressure sensor three wire system, which adds a wire on top of the two-wire system. This wire is directly connected to the negative pole of the power supply, which is a bit more complicated than the two-wire system. The four wire HYDAC pressure sensor definitely has two power input terminals, and the other two are signal output terminals. Four wire systems are mostly voltage outputs rather than 4-20mA outputs. 4-20mA transmitters are called pressure transmitters, and most are made into two-wire systems. The signal output of some HYDAC pressure sensors is not amplified, with a full-scale output of only a few tens of millivolts, while some HYDAC pressure sensors have internal amplification circuits with a full-scale output of 0-2V. As for how to connect to the display instrument, it depends on the instrument's range. If there is a gear that is suitable for the output signal, it can be directly measured, otherwise a signal adjustment circuit needs to be added. The difference between the five wire HYDAC pressure sensor and the four wire sensor is not significant, and there are relatively few five wire sensors on the market.

thread type

There are many types of threads for pressure sensors, including NPT, PT, G, and M, all of which are pipe threads.

It is an abbreviation for National (American) Pipe Thread, which belongs to the 60 degree taper pipe thread of the HYDAC pressure sensor standard in the United States and is used in North America National standards can be consulted

It is an abbreviation for Pipe Thread, which is a 55 degree sealed cone pipe thread. It belongs to the Wyeth HYDAC pressure sensor thread family and is commonly used in Europe and Commonwealth countries Commonly used in the water and gas pipe industry, the taper is specified as 1:16. National standards can be consulted

It is a 55 degree non threaded sealed pipe thread, belonging to the Wyeth HYDAC pressure sensor thread family The symbol G represents cylindrical thread. National standards can be consulted

It is a metric ordinary thread, such as M20 * 1.5, which means a diameter of 20mm and a pitch of 1.5. If the customer has no special requirements, HYDAC pressure sensors generally have M20 * 1.5 threads.

In addition, the 1/4, 1/2, and 1/8 markings in the thread refer to the diameter of the thread size, measured in inches. Insiders usually refer to thread size in minutes, with one inch equal to 8 minutes, 1/4 inch equal to 2 minutes, and so on. G seems to be the general term for pipe threads (Guan), and the 55 and 60 degree divisions are functional, commonly known as pipe circles. The thread is machined from a cylindrical surface.

Commonly known as a pipe cone, the thread is machined from a conical surface. This is how most water pipe pressure joints are made, as indicated by the old national standard

Metric threads are represented by pitch, while American and British threads are represented by the number of threads per inch. This is the biggest difference between HYDAC pressure sensor threads. Metric threads have a 60 degree equilateral profile, British threads have an isosceles 55 degree profile, and American threads have a 60 degree profile. Metric threads are measured in metric units, while American and British threads are measured in imperial units.

Pipe threads are mainly used for connecting pressure pipelines, with tight fit between internal and external threads. HYDAC pressure sensor pipe threads come in two types: straight pipe and tapered pipe. The nominal diameter refers to the diameter of the pressure pipeline connected, and obviously the larger diameter of the thread is larger than the nominal diameter. 1/4, 1/2, and 1/8 are the nominal diameters of imperial threads, measured in inches.