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五机部238厂在1979年研制体育用短程精密激光测距仪的基础上,经过两年努力,装出了五台 HQ-105型短程相位测距仪样机,交付武汉市测绘大队,长办第八、第十一勘测队,五机部勘测公司,湖南省测绘局等单位实测使用。实践证明仪器性能良好,达到原设计指标的各项要求。1981年12月,有关部门作了联合鉴定,同意定型,投入小批量生产。该仪器具有稳定、精密、快速、小型化、轻便、耗电量低等优点,适用于各种工程测量、精密导线测量,城市建设及基本建设等部门。其特点是:发射、接收采用异轴等焦物镜系统,目视系统设有成象清晰的内调焦装置,整机结构一体化。在测量过程中,若光束被遮挡,则仪器自动停测;通视后又自动恢复测量。仪器外形见图1
Wuchang 238 plant in 1979 developed sports short-range precision laser range finder, based on two years of hard work, put out five HQ-105 short-range phase range finder prototype, delivered to the Wuhan Surveying and Mapping unit, long Office Eighth, the eleventh survey team, five machine survey company, Hunan Bureau of Surveying and Mapping and other units measured. Practice has proved that the instrument performance is good, to meet the original design requirements of the indicators. December 1981, the relevant departments made a joint appraisal, agreed to stereotypes, put into small batch production. The instrument has the advantages of stability, precision, fastness, miniaturization, light weight and low power consumption, and is applicable to various engineering surveys, precision wire measurement, urban construction and capital construction. Its features are: launch, receive the use of coaxes and other coke lens system, the visual system with a clear image of the focusing device, the whole structure of the integration. In the measurement process, if the beam is blocked, the instrument automatically stop measuring; visual and then automatically resume measurement. Instrument appearance shown in Figure 1