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一、国外强震加速度仪的发展近十年来,国外强震加速度仪的发展很快,表现在两个方面。(1)继续改进并发展成本低,性能稳定可靠的光记录三分量强震仪。美国Kinemetrics公司的SMA-1型强震仪是这种仪器的代表。目前SMA-1的销量已经超过5000台。应当强调的是,这种仪器的性能仍在不断地改进,以进一步提高仪器的可靠性和实用性。例如:增设了TCG-1型编码时钟,增加了仪器序列号编码选件等等。仪器在野外使用的可靠性可以达到99％,野外的检查工作减少到只
First, the development of foreign strong earthquake accelerometer Over the past decade, the acceleration of strong earthquakes abroad developed rapidly, reflected in two aspects. (1) continue to improve and develop low-cost, stable and reliable optical recording three-component strong seismograph. The Kinemetrics SMA-1 seismometer from the United States is a representative of this type of instrument. The current sales of SMA-1 has more than 5,000 units. It should be emphasized that the performance of this instrument is still constantly improving to further improve the reliability and practicality of the instrument. For example: Additional TCG-1 encoding clock, an increase of instrument serial number encoding options and so on. The reliability of the instrument used in the field can reach 99%, the field inspection work reduced to only