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Beidou GPS timing quartz crystal thermometer

A quartz crystal and thermometer technology, applied in thermometers, thermometers with electric/magnetic elements directly sensitive to heat, radio-controlled timers, etc., can solve the inconvenience of long-distance transmission, shared signals, large zero drift errors, and only Can achieve 0.1K ~ 0.05K and other problems, to achieve the effect of convenient long-distance transmission, high accuracy and high stability

Active Publication Date: 2016-01-20
章礼道
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  • Abstract
  • Description
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Problems solved by technology

[0008] Solve the problem that the quartz crystal thermometer in the prior art still has a large zero drift error, its resolution can be 0.001K~0.0001K, but the accuracy can only be 0.1K~0.05K; solve the problem of the prior art Quartz crystal thermometers are not convenient for long-distance transmission and signal sharing

Method used

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  • Beidou GPS timing quartz crystal thermometer

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Embodiment 1

[0030] Combine now figure 1 Taking a Beidou GPS time service quartz crystal thermometer with a range of -50°C to 250°C as an example to illustrate the optimal way to realize the invention.

[0031] The quartz crystal thermometer of Beidou GPS time service of the present invention comprises GPS antenna (2), Beidou antenna (3), GPS module (5), Beidou module (6), quartz crystal probe (1), oscillator (4), high-speed counter ( 7), gating control module (8), single-chip microcomputer and solid state hard disk (9), man-machine interface (10), display unit (12); Beidou antenna (3) receives Beidou satellite timing signal, Beidou module (6) outputs high The precision second pulse is sent to the gating control module (8); the GPS antenna (2) receives the GPS satellite timing signal, and the GPS module (5) outputs the high-precision second pulse to the gating control module (8); the gating control module (8) simultaneously It also accepts the instructions of the man-machine interface (10...

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Abstract

The invention discloses a Beidou GPS (global positioning system)-timed quartz crystal thermometer, and relates to a high-resolution, high-accuracy and high-stability thermometer applicable to an industrial environment and capable of conveniently transmitting and sharing signals at a long distance. The thermometer comprises a GPS antenna, a Beidou antenna, a GPS module, a Beidou module, a quartz crystal probe, an oscillator, a high-speed counter, a gating control module, a single-chip microcomputer and solid hard disk, a human-computer interface and a display unit. According to the Beidou GPS-timed quartz crystal thermometer, a reference quartz crystal oscillator is replaced with a high-accuracy Beidou GPS timing signal which can be easily acquired, so that the accuracy of the Beidou GPS-timed quartz crystal thermometer can reach 10 to 1mK; a field bus interface is supported, the Beidou GPS-timed quartz crystal thermometer is consistent with an IEC61158Ed.3 field bus standard, and data can be conveniently shared in a DCS (distributed control system).

Description

(1) Technical field: [0001] The invention relates to a quartz crystal thermometer for Beidou GPS time service, which relates to a thermometer with high resolution, high precision, high stability, convenient long-distance transmission and signal sharing, which can be applied in an industrial environment. (two) background technology: [0002] The International Practical Temperature Scale is based on specified values ​​of temperature at some reproducible equilibrium states (defining fixed points), and standard interpolating instruments graduated at these fixed points of the IPT. In 1968, the international practical temperature scale was divided into three temperature zones, and the temperature values ​​in these temperature zones were defined by standard platinum resistance thermometers, standard platinum-rhodium (10%) platinum thermocouples, and Planck's radiation law. [0003] The core component of the quartz crystal thermometer in the prior art is a resonant quartz crystal os...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/32G04R20/04
Inventor 章礼道
Owner 章礼道
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