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航天器液体燃料管道绝热夹层的真空测理由于空间位置、重量和高可靠性的特殊要求,工业用真空计使用受到限制。研制的微型中真空电离规可以解决这类测量问题。并为低温容器绝热夹层的真空度测量提供一种较理想的真空压力传感器。这种规尺寸为Φ20×40毫米,全金属结构,总质量小于30克。在100~(-5)×10~(-4)帕有较好的线性。本规在10帕以上K=2.25×10~(-3)帕~(-1)。10帕以下压力时K=7.5×10~(-3)帕~(-1)。此规为斜口设计,即利于直接焊接外,更利于采用DN16CF法兰,为通用设备上的应用提供了较方便的接口,微型规用于低温大型液氧、液氢槽车绝热夹层中的真空测量是十分适宜的,频繁和长期地运输颠簸都不会过大地影响规管性能,可以保证测试结果的可信性。
Vacuuming of spacecraft liquid fuel pipe insulation sandwich Due to the special requirements of space position, weight and high reliability, the use of industrial vacuum gauges is limited. Developed miniature vacuum ionization gauge can solve such measurement problems. And provide an ideal vacuum pressure sensor for measuring the vacuum degree of the insulating interlayer of the cryogenic vessel. This gauge size Φ20 × 40 mm, all-metal structure, the total mass of less than 30 grams. In the 100 ~ (-5) × 10 ~ (-4) Pa has better linearity. The regulations at 10 Pa above K = 2.25 × 10 ~ (-3) Pa ~ (-1). K = 7.5 × 10 ~ (-3) Pa ~ (-1) under the pressure of 10 Pa. This regulation for the ramp design, which is conducive to direct welding, but also more conducive to the use of DN16CF flange for general-purpose applications on the device provides a more convenient interface, micro-regulations for large-scale low-temperature liquid oxygen, liquid tankers car insulation sandwich Vacuum measurement is very appropriate, frequent and long-term transport bumps will not affect the regulatory performance too much, you can ensure the credibility of the test results.