Working principle of ultrasonic sensor

People can hear the sound due to the vibration of the object, and its frequency is within the range of 20HZ-20KHZ ultrasonic sensor. More than 20KHZ is called ultrasonic wave, and those below 20HZ are called infrasound waves. Commonly used ultrasonic frequencies are dozens of KHZ-tens of MHZ. Ultras ......

5 tips to help you choose the right barcode printer

Common printers in the domestic market currently have two different print heads due to brand differences. One is a flat-pressure print head. The entire print head is pressed on a carbon ribbon. This print head can adapt to various carbon ribbons. With a wide user base, this print head is the most ......

Introduction to pyruvate

Pyruvic acid CH3COCOOH, formerly known as tartaric acid (De Brenztr-aubensure), alias 2-oxopropionic acid, acetoformic acid, looking to light yellow liquid, smell of acetic acid It is one of the intermediate products involved in the basic metabolism of the entire organism. Due to α-keto acid an ......

Phenol Saffron Red / Phenol Saffron / Phenol Saffron

Cas No. 81-93-6 Molecular formula C18HClN4 Molecular weight 322.79 Phenosafranine Green shiny crystal. It is easily soluble in water and alcohol. The water and alcohol are purple-red and have green-yellow fluorescence. Melting point: 300 ° C The product is used as an acid-base indicator, ......

Rat Runt related gene 2 (RUNX 2) ELISA detection kit

Rat Runt related gene 2 (RUNX 2) ELISA detection kit user's Guide Detection principle The kit uses double antibody one-step sandwich enzyme-linked immunosorbent assay (ELISA). To the coated microwells pre-coated with rat Runt related gene 2 (RUNX 2) capture antibody, add specimens, standard ......

Japan's energy industry research and development builds …

China Education Equipment Purchasing Network News: According to a recent report from Nikkan Kogyo Shimbun, the Japanese Energy Industry Technology Comprehensive Research and Development Agency and the Kawasaki Industry Group have jointly invested 10 billion yen to plan to cooperate with Australia ......