absorptiometer

Methods The bone masses of the 161 healthy 9~ 20 year old children and adolescents were assessed by single photon absorptiometer ( SPA).

【方法】采用单光子骨密度仪检测了161名健康9～20岁儿童青少年桡骨骨矿含量（BMC值）和骨密度（BMD值）。

Bone mineral content ( BMC) in the distal radius and ulna was measured in 280 old people in Yinchuan using SD 1000 single photon absorptiometer.

采用SD－1000型骨矿物仪测定银川地区280例老年人尺桡骨骨矿含量。

An~ ( 125) I γ single-photon absorptiometer

~（125）I单光子吸收仪的研制

The development work is described in main on an immersion probe Y absorptiometer ( IPA) and a floating probe Y absorptiometer ( FPA) with their application to the solvent extraction for automatic determination of uranium concentrations of organic extracts in the mixer-settler of a certain uranium plant.

本文报道了浸入式和浮动式探头的软γ吸收计的研制，及其在某铀水冶厂萃取过程中的应用。浸入式探头可插入混合澄清器内饱和有机相中测定铀浓度；

Methods: Measuring the bone density of mandibular angle and coxofemoral region with dual energy X ray absorptiometer ( DXA).

方法：采用双能X线吸收测量仪（DXA，骨密度仪），测量右侧髋部与左侧下颌角的骨矿物密度。

The concept of equivalent absorbance is proposed. Under ideal conditons and without the consideration of noise, the sensitivity and the optical path corresponding to optimal sensitivity are derived for the absorptiometer that uses software for A/ D conversion.

提出了等效吸光度的概念，在不考虑噪声的理想情况下，推导出以软件完成AD变换的光电吸收式仪器的灵敏度及最佳灵敏度对应的光程。