초록 ▼

Test apparatus for the optoelectronic evaluation of test paper strips such as are used, for example, for determining the blood sugar level, which apparatus may be calibrated in a simple and accurate manner. For dark calibration, there is provided in a position opposite the light source and the photo

Test apparatus for the optoelectronic evaluation of test paper strips such as are used, for example, for determining the blood sugar level, which apparatus may be calibrated in a simple and accurate manner. For dark calibration, there is provided in a position opposite the light source and the photosensor a reflector having a black reflector surface, with the space for receiving the test paper strip - as determined by the holding means - being located between the light source and the photosensor on the one hand and the reflector on the other hand. There are provided accuracy-improving means for the test paper-dependent calibration of the evaluation and display means and a bar code reader comprising a channel for passing therethrough a bar code strip, a light source for illuminating the bar code strip and a photosensor to scan the bar code pattern and having its output connected to the evaluation and display means (FIG. 1).

대표청구항 ▼

Test apparatus for optoelectronically evaluating test strips, for example those used in determining blood sugar levels, comprising means for holding a test strip to be evaluated; a light source for illuminating the test strip; a sensor for receiving light which is reflected from the test strip; and

Test apparatus for optoelectronically evaluating test strips, for example those used in determining blood sugar levels, comprising means for holding a test strip to be evaluated; a light source for illuminating the test strip; a sensor for receiving light which is reflected from the test strip; and calibrating means including a reflector disposed opposite said light source and sensor and defining therewith an elongated gap for the test strip, said reflector having a reflector surface facing across said gap and being oriented to reflect light which issues from said source away from said sensor while said gap is empty.