High-temperature-resistant multipath signal cable for sensor

Abstract

The invention belongs to the field of signal transmission cables, and particularly relates to a high-temperature-resistant multipath signal cable for a sensor. The high-temperature-resistant multipath signal cable comprises transmission wires (1), a ceramic insulating layer (2), an insulating layer (4) and a stainless steel sheath (5). The ceramic insulating layer (2) covers on the transmission wires (1). The insulating layer covers on the ceramic insulating layer (2). The stainless steel sheath (5) is fixedly disposed outside the insulating layer (4). A buffer layer (3) is provided between the ceramic insulating layer (2) and the insulating layer (4). The transmission wires (1) are pure nickel wires or silver alloy wires. The high-temperature-resistant multipath signal cable for a sensor is composed of the multiple transmission wires, the ceramic insulating layer, the magnesium-oxide insulating layer and the stainless steel sheath, and has the characteristics of small size, high temperature resistance, flexibility, hot-end wire short circuit prevention, etc. Multipath signals detected are transmitted from a hot end to a cold end via the high-temperature-resistant multipath signal cable.

Description

technical field [0001] The invention belongs to the field of signal transmission cables, in particular to a high-temperature-resistant multi-channel signal cable for sensors. Background technique [0002] Multi-channel signal cables for sensors are generally composed of wires covered with insulating layers arranged in parallel. The wires are made of copper wires; the insulating layer is made of organic materials such as polyethylene or polyvinyl chloride, which has good insulation. [0003] There are more and more applications of small sensors in high-temperature environments in compact spaces, and the transmission of test signals requires high-temperature signal cables to be transmitted from the high-temperature end to the low-temperature end. When the high temperature exceeds 300 degrees, cables using organic materials cannot be used. Armored signal cables are made of inorganic materials, which can be used in high temperature environments. It consists of a wire for trans...

AI Technical Summary

Problems solved by technology

In the narrow and compact space of small sensors, there are many inconveniences in the use of armored signal cables

When using one cable (only 3mm in outer diameter) to transmit 6 channels of signals, especially the wires at the hot end of the cable, each wire needs to be connected to the corresponding signal terminal of the sensor. Since the wires and signal terminals are exposed and the wires are very thin, multiple channels ( 6) The signal connection is difficult, and it is very easy to cause a short circuit between the signal wires during connection and use, making it unusable or even causing other losses

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