Measuring instruments for determining skin color have a variety of classifications. Telespectroradiometers (TSRs) and spectrophotometers (SPs) are two classifications for instruments that are widely used for measuring skin color. For example, in the cosmetic industry, TSRs are used for measuring color appearance for developing skin color charts and evaluating skin products. In contrast, SPs are […]
spectroscopy
How do you accurately measure skin color? Part 1
While discrimination based on skin color is against the law in the U.S., changes in skin color provide important information in healthcare regarding disease progression or treatment response, so accurately measuring and distinguishing skin color is essential. Skin color is also a predictor of skin cancer risk. Also, accurately measuring and matching skin color is […]
What’s new in glucose sensing?
Key driving forces for new or next generation products include (1) critical need, (2) broad, global usage and (3) sufficient volume requirements to justify R&D expenditures. Glucose sensing/monitoring meets these criteria and more. In the United States alone, the American Diabetes Association (ADA) says over 133 million Americans have diabetes or prediabetes [1]. According to […]
Beer’s Law: What is it and how is it used?
No. It has nothing to do with drinking too many beers and getting a beer belly. Named after German mathematician and chemist, August Beer, Beer’s law (or the Beer-Lambert law) observes the linear relationship between absorbance and concentration of a dissolved substance in a solution and is usually expressed as: A = a(λ) * b […]
What is an aphrometer?
In simple terms, an aphrometer is a manometer for measuring the pressure in champagne and sparkling wine bottles. When the aging process is completed, a disgorgement process removes the sediment and then an aphrometer is used to check the pressure in the bottle. Traditional cork and crown cap aphrometers make invasive measurements, typically in the […]
