It’s well known that automobiles and smartphones have several sensors to improve today’s capabilities over those of previous generations. However, they are not the only products that impact consumers’ lives to do so. For example, automated teller machines (ATMs) have a surprising number and different types of sensors to perform a variety of functions. Even […]
How do you accurately measure skin color? Part 2
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 […]
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 […]
How does skin color impact biosensors?
To determine blood oxygen (arterial blood oxygen saturation (SpO2)) and pulse rate, many biosensors use the reflectance of red and infrared (and sometimes green) light. Based on photoplethysmography (PPG), an optical technique that measures blood volume variations, dual-wavelength PPG pulse oximeters noninvasively measure/calculate the arterial oxygen saturation (SpO2). An oximeter transmits radiation at a known […]
What is dosimetry? Part 2
Electronic personal dosimeters (EPDs) provide one of the newest forms of dosimetry. In real time, EPDs provide users feedback on their exposure to radiation. For example, the MBD-2 Tactical/Occupational Personal Dosimeter from Mirion Technologies is a real-time, self-indicating device that operates without user intervention. Intended for field use in military and homeland security applications, the […]
What is dosimetry? Part 1
In the broadest sense, dosimetry is done to measure and prevent or at least identify problems from significant or long-term exposure to harmful situations. More specifically, dosimetry refers to the study, measurement, method of measurement or instrument of measurement of radiation dose. Dosimetry often involves wearing a personnel badge, a dosimeter, that measures and monitors […]
What are next generation bio sensing techniques? Part 2
Part 1 of this blog explored research into localized surface plasmon resonance (LSPR) sensors. This part discusses a surface plasmon resonance/surface-enhanced Raman scattering (SPR/SERS) dual-mode plasmonic biosensor and two other sensing techniques. The SPR/SERS biosensor based on catalytic hairpin assembly (CHA)-induced Au nanoparticle (AuNP) network was proposed for highly sensitive and reliable detection of a […]
What are next generation bio sensing techniques? Part 1
With the ease that people can travel around the world, viruses spread through droplet transmission are one of the most dangerous causes of infectious diseases. The COVID-19 pandemic made this point quite clear. One of the obvious responses to prevent a reoccurrence of this type of situation is effective virus detection technology to prevent the […]
What’s new in color sensing?
Advancements in color sensing technology and its increased use in industrial automation are increasing the adoption of color sensing technology across several industries. Color sensing devices are extensively used to detect the color of the surface and to monitor the color consistency in packaging, textile production and automotive applications. For example, in the packaging industry, […]
What’s the outlook for chemical sensors?
The current emphasis on providing products and materials with fewer environmental effects will have a direct impact on the chemical industry and chemical sensors. Obviously, this starts with, but is certainly not restricted to, reduced CO2 emissions. Chemical sensors have a wide range of applications, including healthcare, industrial, biotechnology, and household sensing requirements such as […]
