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一、引言现有的标准金属量器在作为标准量传的检定过程中,每次注水时都需要检定人员手动控制进水阀门的关停、人工观察计量颈的水位,超出刻线时要打开计量颈下方的微调阀门放出多余液体,未达到刻线高度时要继续打开进水阀门进水,耗时费力。检定准确性受人为因素影响较多,不容易实现自动控制。随着标准金属量器在各个行业得到普遍的应用,对检定过程中的时效性提出了新的要求。在一些应用场合,量器的现有结构已不能适应自动化控制的需
I. INTRODUCTION Existing standard metal gauges, as the standard mass transfer verification process, require the verification personnel to manually control the closing and stopping of the inlet valve during each water injection, and manually observe the water level of the neck of the gauge and open beyond the engraved line Measuring the neck below the fine-tuning valve release excess liquid, did not reach the engraved height to continue to open the inlet valve water, time-consuming and labor-intensive. Verification accuracy is more affected by human factors, not easy to achieve automatic control. With the universal application of standard metal gauges in various industries, new requirements have been placed on the timeliness in the verification process. In some applications, the existing structure of the gauge can no longer accommodate the need for automated control