Prinsip kerja kabel pengukur suhu-INNO

Prinsip kerja kabel pengukur suhu

Kabel pengukur suhu merupakan kabel yang dapat memantau perubahan suhu secara real time, mengukur amplitudo perubahan suhu dari waktu ke waktu, dan suhu yang dipantau merupakan suhu tertinggi di seluruh area pengukuran. Kabel pengukur suhu dapat dihubungkan dengan peralatan pendukung yang sesuai untuk mencapai pemantauan jarak jauh komputer dan pengukuran di beberapa lokasi, kelompok suhu skala besar, dan perubahan. Mereka dapat digunakan secara luas di berbagai industri penyimpanan, pertanian, pertambangan, perikanan dan lingkungan lainnya, peralatan operasi, pelestarian dan sistem penginderaan sinyal sistem pemantauan dan kontrol suhu lainnya. Umumnya, kabel pengukuran suhu terdiri dari sensor suhu, kabel, tali kawat baja tarik, dan sarung. Kabel pengukur suhu diri terutama digunakan di rumah sakit padat penduduk, sekolah, pusat perbelanjaan, and other scenarios. They have good fire resistance performance and can still ensure normal power supply in the event of a fire around the cable. Lebih-lebih lagi, the cable produces almost no gas that poses a threat to human life during prolonged combustion; And the cable has a self temperature measurement function, which can give an alarm in advance when the cable temperature is abnormal, so as to evacuate people in a timely manner; It can accurately locate the location of temperature anomalies, promptly troubleshoot faults, avoid fires, and solve problems in existing technologies.

How to install temperature measurement cables

The widely used technologies in cable temperature measurement include thermocouple temperature measurement and fiber optic temperature measurement. The principle of thermocouple temperature measurement is that the resistance of the thermocouple changes with the temperature, in order to convert the temperature signal into an electrical signal and measure it. Thermocouple temperature measurement has a simple structure, biaya rendah, and mature technology. Namun, due to the fact that thermocouples can only perform point type temperature measurement, they cannot monitor the temperature of the entire cable line online, so they have certain limitations. Fiber optic has the advantages of low cost, tidak ada interferensi elektromagnetik, small size and light weight, akurasi pengukuran yang tinggi, dan instalasi mudah. Serat optik terdistribusi temperature measurement technology can achieve long-term monitoring of logarithmic kilometers of power lines using a single fiber optic cable

Requirements for temperature measurement cable sensors

In intelligent temperature measurement cables, the wires include: wire core, inner shielding layer, insulating material, outer shielding layer, protective sleeve, and metal shielding layer; The wire core is made of copper or aluminum wire, and the inner shielding layer is composed of semiconductor material, which surrounds the surface of the wire core and has an equal potential with the wire core to prevent partial discharge between the wire core and insulation material. The insulation material is cross-linked polyethylene, which surrounds the outside of the wire core and inner shielding layer. The outer shielding layer is composed of semiconductor material, which surrounds the surface of the insulation material to prevent partial discharge between the insulation material and the protective sleeve. The metal shielding layer surrounds the outside of the protective sleeve to connect the leakage current to the grounding grid; Use non-woven fabric as the filling material; The fiber optic placement groove is set at the axis of the three core power cable. In the intelligent temperature measurement cable, the temperature measurement fiber is placed in the center of the fiber placement groove. The temperature measurement and storage at various points of the three core power cable have been achieved. The built-in optical fiber is used to eliminate external interference, and the optical fiber is installed in the center of the three core cable, improving the uniformity and accuracy of temperature measurement. Pada saat yang sama, it has increased the service life of temperature measuring optical fibers. Memberikan dasar penerapan untuk deteksi kesalahan kabel daya dan pengendalian daya dukung arus

Biasanya berapa harga kabel pengukur suhu per meternya

Ada banyak harga kabel pengukur suhu, dan terdapat banyak produsen alat pengukur suhu kabel dengan kemampuan teknis yang berbeda-beda. Silakan berkonsultasi dengan FJINNO untuk penawaran terbaru untuk kabel pengukuran suhu.