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For all cooking methods, including grilling, the temperature of the food is the most important indicator. Once we know the temperature, we no longer need to ask the most famous question: "Is it done?" If there is one single piece of advice that can be given to a grill chef, it is to use a good quality digital thermometer. Many bricklayers say that the temperature can be determined by trying the grill by hand, and maybe some people can do it. This is very difficult for most people because everyone responds to heat differently. In 2014, Consumer Reports in the US tested hundreds of chicken breasts from across the US and found that almost all were infected with bacteria -- half of which were antibiotic-resistant. As scary as it sounds, the good news is that these germs can be eliminated. As long as the chicken is cooked to 71.1 degrees Celsius and above, these bacteria can be eliminated. Determining the degree of doneness of food, not relying on a thermometer can only rely on guesswork. Cooking without a good digital thermometer is like diving without a speedometer, punching furniture without a tape measure, and inflating without a barometer. Thermometers are inexpensive, fast, and accurate, and the investment in a few good ones is well worth the money. Nothing will improve your culinary skills faster. Baking thermometers include the following: oven thermometers, electronic probe thermometers (with and without wires), infrared laser thermometers. Each specific use is also different. The oven thermometer is generally used to test and monitor the temperature in the oven. Electronic probe thermometers are generally used to measure fermented dough, boil sugar, adjust the temperature of chocolate, etc. The ones with wires can also be extended into the oven to measure the temperature. At the same time, the probe or infrared laser thermometer can also be used to measure milk temperature, water temperature, oil temperature, barbecue and so on.

In recent years, with the continuous development of electronic technology and automation, its high-tech has been widely used in various industries, and therefore, the liquid level measurement and control technology has also been greatly improved. In addition, because the functions of the liquid level sensor are becoming more and more perfect, it also provides a huge contribution to many industries, such as the liquid level of various media in petrochemical, metallurgy, electric power, pharmaceutical, water supply and drainage, environmental protection and other industries. Level measurement is now inseparable from the monitoring of the liquid level. Since its development, the importance of liquid level sensors has become increasingly prominent, and even directly affects production and life. Briefly, the liquid level sensor is a liquid level control device with a simple structure and convenient use. It is suitable for continuous detection of liquid level, material level or material level under special conditions such as high temperature, high pressure, strong corrosion, easy crystallization, anti-clogging, anti-cold junction and solid powder and granular materials, and can be widely used in various industries. In-process detection control. The common liquid level sensors mainly include capacitive liquid level sensors, floating ball liquid level sensors, ultrasonic liquid level sensors, radar liquid level sensors and submersible liquid level sensors. 1 Capacitive Liquid Level Sensor The capacitive liquid level sensor uses the capacitive detection principle, and the capacitive liquid level gauge measures the level of the liquid level by measuring the change of capacitance. 2 Float-type liquid level sensor The float type liquid level sensor uses the magnetic float of the float level switch to rise or fall with the liquid level, so that the reed switch chip at the set position in the sensor detection tube acts, and sends out the contact opening (closing) conversion signal. 3 Ultrasonic Liquid Level Sensor Ultrasonic liquid level sensor is a non-contact sensor that uses the principle of ultrasonic reflection, that is, the liquid level height is calculated by monitoring the time difference between ultrasonic transmission and reflection, so as to achieve the purpose of liquid level measurement. 4 Radar Liquid Level Sensor The radar liquid level sensor has the same advantages as the laser measurement principle, and is not affected by the measurement medium, and is less affected by the external environment, and does not require repeated calibration, but the measurement height is generally within 6 meters, especially suitable for heating steam. In-tank measurement of large containers, such as residual oil, asphalt and other monitoring fields. 5 Hydrostatic Liquid Level Sensor The measurement principle is that the static pressure generated by the liquid column is a function of the liquid density and liquid level. The pressure sensor installed at the bottom of the storage tank measures the gauge pressure relative to the atmospheric pressure, and converts the measured value into the liquid level according to the known medium density. In addition, under the rapid development of the Internet of Things in recent years, the submersible liquid level sensor has a unique advantage in the liquid level sensor market due to the advantages of accurate measurement, high precision, fast response, advanced technology and low power consumption, and can adapt to With the development of the Internet of Things society, the sturdy stainless steel package makes it easy to measure the liquid level of most media, and occupies a leading position in the contact liquid level measurement. Overall, the future prospects of liquid level sensors are very promising

80 GHz radar level transmitters, compact instruments with a narrow beam for flexible installations in existing vessel openings – or even non-intrusively through plastic vessels. The transmitters` 80 GHz high frequency delivers robust, reliable measurements even in challenging environments such as those with solids. The custom microchip technology delivers fast response and extremely high sensitivity to detect even the weakest of signals. The transmitters` dependable readings reduce workers` exposure to hazardous situations: no need to climb tanks, lean out over sumps, or crawl into confined spaces to maintain instruments. As well, zero-meter blanking distance allows measurement right up to the sensor, thereby avoiding costly overfilling. And 2 mm accuracy enhances operational safety through precise measurement through the full range of the application. All this robust performance is wrapped in an IP68 submersible housing constructed of corrosion resistant PVDF. As the bandwidth of the radar widens, the resolution of the spectrum increases and the individual targets are indicated by narrower, more accurate peaks: the bandwidth over which the frequency is modulated determines the number of different signals reflected from a target. A 24 GHz radar typically modulates between 24 and 26 GHz and thus has a bandwidth of 2 GHz, while an 80 GHz typically modulates in the range between 78 and 82 GHz and thus has a bandwidth of 4 GHz. With 4 GHz, for example, it is possible to differentiate between targets that are only 10 cm/4" apart. With 2 GHz, these cannot be distinguished under the same conditions.

Application of Electromagnetic Flowmeter in Industrial Metallurgical Wastewater Treatment I. With the acceleration of my country's industrialization process, the problem of environmental pollution has become increasingly serious, and the discharge of industrial wastewater has also increased significantly. If these wastewaters are discharged without treatment, they will cause serious pollution to the environment and drinking water. I. Only the lining and electrodes of the sensor part of the intelligent electromagnetic flowmeter are in contact with the liquid to be measured. As long as the electrode and lining materials are reasonably selected, they can be resistant to corrosion and wear. Therefore, it is especially suitable for flow measurement of industrial sewage. I. Electromagnetic flowmeters have continuously received positive feedback from customers in chemical sewage measurement and are used in various occasions.

Application of PT100 temperature sensor in the Internet of Things I. Overview: NB-IoT wireless sensor is a wireless temperature smart meter equipped with NB-IoT module. Adapt to PT100 temperature sensor. It is an ideal low-power intelligent instrument for temperature acquisition, transmission and display. It is suitable for smart city application scenarios such as oil field, water conservancy, fire pipe network, water pipe network, urban heating pipe network, etc. It is a wireless pressure, temperature, temperature and pressure integrated smart meter equipped with NB-IoT module. Compatible with diffused silicon sensor and PT100 temperature sensor. It is an ideal low-power intelligent instrument for pressure, temperature acquisition, transmission and display. It is suitable for smart city application scenarios such as oil field, water conservancy, fire protection pipeline network, tap water pipeline network, and urban heating pipeline network. Ⅱ. Features: 1. Sampling low-power microprocessor, NB-IoT wireless communication technology, battery-powered, low-power operation, battery life of 2-5 years (affected by the upload interval). 2. There is no need for gateway routing RTU and other equipment, the data is directly connected to the background server, and the installation is simple; 3. Support data access services of third-party platforms, suitable for oil fields, tap water, mines, and water conservancy. Internal parameter settings are more suitable for group users. 4. Strong anti-interference characteristics, the temperature characteristics of the whole machine are very good, and the working temperature range is -30-70 degrees. 5. High protection level above IP65, suitable for outdoor occasions. 6. A variety of application software and hardware support, data transmission solutions, customer application software and hardware support. Ⅲ. System composition 1.NB-IoT sensors: The instrument is responsible for collecting sensor information such as pressure, liquid level, and temperature, and uploading data to the cloud platform through the NB-IoT network at preset intervals. 2.cloud platform: The cloud platform is responsible for collecting and saving data uploaded by sensors, has a complete and rigorous background protocol, and can handle certain business logic. The cloud platform can be a private cloud, an IoT cloud platform, and a third-party data platform. 3.Application development support: Provide a concise API interface, through which the client web, PC, Android APP and other application programs can be developed quickly, helping customers to quickly realize the Internet of Things data access and data analysis capabilities.

The antenna of the radar sensor emits electromagnetic wave signals in the form of beams. The emitted waves are reflected on the surface of the material to be measured, and the reflected echo signals are still received by the antenna. Every point in the transmitted and reflected beams is collected by ultrasonic sampling. After the signal is processed by the intelligent processor, the distance between the medium and the probe is obtained and sent to the terminal display for display, alarm, and operation. During the transmission time interval, the antenna system is used as a receiving device. The instrument analyzes and processes the echo signal whose running time is less than one billionth of a second, and analyzes and processes the echo in a very short moment. The radar sensor uses a special time interval adjustment technology to amplify and locate the echo signals per second, and then analyze and process them. Therefore, the radar sensor can analyze and process these amplified echo signals accurately and meticulously within 0.1s, without spending a lot of time analyzing the frequency. The strength of the reflected signal is highly dependent on the dielectric constant of the fluid. Water (ε = 80) is much easier to measure than hydrocarbons (ε <25). The sensors can be tuned to measure either, however. Two operating principles are used: time of flight (TOF) and frequency modulated continuous wave (FMCW). Modern instruments have overcome deficiencies that once plagued the FMCW technology. Select the device on the basis of its accuracy, beam angle, and antenna diameter rather than on the type of radar signalling. The absolute accuracy of a radar detector is improved with a higher signal frequency which is generally 6, 26, or 80 GHz. The accuracy is typically 6-10 mm at 6 GHz and <1 mm at 80 GHz. But the service accuracy is also affected by the nature of the surface of the fluid in the tank. The beam angle decreases with increased frequency. If the surface of the fluid is choppy or wavy, a wider angle might do a better job of smoothing out the signal. This is somewhat analogous to an auto-focus camera that can be set to focus on a tight spot or on the average of the wider scene; the spot will be correctly focused while another subject in the photo is blurry. However, algorithms in modern electronics can mitigate this effect and allow for the use of high frequency signals even with very turbulent surfaces. Beam angle is an important consideration when deciding where to locate the transmitter on the tank head. You want the beam to avoid hitting the tank wall because that will disrupt the reflected signal and decrease the strength and robustness of the measurement. Radar sensors are fitted with an antenna; the diameter and shape of the antenna, in addition to the signal frequency, determine the beam angle. Many radar units can be programmed to [map out" signals that are reflected from internals in the tank, including the wall, but it is still better practice to keep them out of the beam

Industry 4.0 is the next generation of industrial automation, allowing the affiliates to optimize their factories and augment their production process with the interconnectivity of industrial equipment and increasing computation. The Fourth Industrial Revolution conceptualizes rapid change in technology, industries, societal patterns and processes in the 21st century which is due to increasing interconnectivity and smart automation. It is a new chapter in industrial development, empowered by extraordinary technological advances commensurate with those of the first, second, and third industrial revolutions. These advances are converging the physical, digital, and living worlds in ways that create both huge promises and potential peril. It is more than just a technology-driven change; it is an opportunity to help the stakeholders harness converging technologies to create an inclusive, human-centered future to achieve sustainability. Interoperability, information transparency, technical assistance, and decentralized decisions are the basic principles of establishing Industry 4.0. Figure 1 provides the insights of same in identifying and implementing Industry 4.0. IoT facilitates the devices to communicate with each other, leading to the creation of a virtual copy of physical world data. This assists the operators to visualize/analyze the related process involved and eventually making decisions on their own to perform tasks as autonomously as possible. Industry 4.0 is regarded as a series of disruptive and ever-growing innovations in production and leaps in industrial processes with the objective of achieving excellence in terms of productivity, safety, and related cost involved. Various key enabling technologies are being practiced in the industrial arena for the same (Figure 2). From improving production and quality to related safety and cost involved, Industry 4.0 has created solutions for day-to-day industrial problems. It has demonstrated various paradigms for asset utilization and resource-energy optimization. Figure 3 summarizes some of the major add-ons which can be achieved through industry 4.0.

The TZNW-5 Transmitters are solid state loop powered Velocity and Velocity/Temperature Sensors. Each parameter provides a 4-20mA output that is proportional to overall vibration and temperature in terms of velocity and degrees Celsius or Fahrenheit. The TZNW-5 Series continuously monitors machinery health and transmits directly into a PLC or DCS for trending, alarm and machine shutdown