Presented in this report is an overview of robotic sensors, many of which are in experimental stages. Two main sensor types are discussed: contact and noncontact. Descriptions of the physical measurements. how they are measured, and operating principles of specific devices are provided for both types of sensors. Contact, or tactile, sensors comprise three groups: touch, proximity, and slip sens...

Abstract A grain moisture detection system is proposed in this paper, which is designed based on capacitive sensor and single chip microcomputer. The working principle of concentric capacitive sensor is introduced and the hardware circuits of system are described in details. The system has an intelligent controller internal, it can collect data, display data and determine whether to alarm when ...

The capacitive pressure transmitters consist of an isolating diaphragm connected to a sensing line through some inner tubes which contain silicone oil. The accuracy of the sensor is determined by the efficiency of the filling process with silicone oil in the transmitter inner chambers, so that the fact of not filling completely any of the transmitter chambers can affect the dynamic response of ...

This work presents a CMOS (complementary metal oxide semiconductor) micromachined capacitive differential flow sensor for respiratory monitoring. Airflow induces a pressure change on the suspended sensing plate and causes a capacitance change with respect to the electrodes. The microstructure fabricated by post-CMOS metal etch occupies an area of 320 × 230 m and has differential sensing capaci...

This paper describes an application of Sandia's non-contact capacitive sensing technology for collision avoidance during the manufacturing of rocket engine thrust chambers. The collision avoidance system consists of an octagon shaped collar with a capacitive proximity sensor mounted on each face. The sensors produce electric fields which extend several inches from the face of the colIar and det...

Microfluidic two-phase flow detection has attracted plenty of interest in various areas of biology, medicine and chemistry. This work presents a capacitive sensor using insulated interdigital electrodes (IDEs) to detect the presence of droplets in a microchannel. This droplet sensor is composed of a glass substrate, patterned gold electrodes and an insulation layer. A polydimethylsiloxane (PDMS...