摘要:
Apparatus for sensing acceleration and generating an analog-type pressurized fluid signal proportional to the magnitude of the associated acceleration event. A friction-free spring-mass device in the form of a flexure-mounted inertial mass includes a hollow, elongated spring member of the cantilever beam type having a first end rigidly fixed in position and a second unsupported end upon which the acceleration-sensitive inertial mass is mounted for sensing linear motion acceleration. The hollow portion of the spring member issues a fluid jet from the second unsupported end directed at fluid receivers, the flexure of the spring member causing distribution of the jet between the receivers in proportion to the magnitude of the acceleration. Angular motion acceleration is sensed by utilizing a cylindrical inertial mass connected along its longitudinal axis to two torsional spring members rigidly fixed in position at their far ends such that the cylindrical mass is subject to rotation in the presence of an angular motion acceleration.
摘要:
A pressure insensitive, temperature dependent fluid oscillator has a fluid supplied thereto. The frequency of the oscillator is measured indicating the temperature of the fluid. The frequency of the oscillator is made independent of pressure fluctuations by having a choked flow condition exist with regard to the discharge nozzle of the oscillator.
摘要:
A fluidic detection device for detecting the presence of an article or component. The detection device has a housing having a fluid passage therein and a detector portion having a magnet attracted to the housing adjacent to and closing the fluid passage and a catwhisker type detector element secured to the magnet and adapted to contact the article or component. Contact between the catwhisker and the article causes the magnet to open the fluid passage which controls a fluid signal to indicate the presence of the article.
摘要:
A fluid-driven sensor for detecting and indicating the presence of a foreign object in the path of a fluid medium having a cylindrical vortex generation chamber, a supply port for introducing a driving fluid into the generation chamber, a vortex egress port communicating with a central portion of the generation chamber for permitting the driving fluid to escape from the generation chamber, and a sensing port by means of which the pressure within the central portion of the generation chamber is sensed.
摘要:
A vortex generating sensor for detecting and indicating the presence of an object in the path of a stream of fluid comprising a cylindrical vortex generating chamber, a supply port for introducing fluid into the vortex chamber, a vortex outlet port communicating with a central portion of the vortex chamber for permitting the fluid to be exhausted therefrom, a vortex direction chamber communicating with said generating chamber through said outlet port for affecting the configuration of the exhausted fluid, at least one secondary fluid flow port communicating with said direction chamber, and a sensing port by means of which the pressure within the central portion of the vortex chamber is sensed.
摘要:
A device for detecting leaks of a predetermined magnitude from fluid-containing apparatus, which device comprises an oversized drain tube skewed with respect to vertical and including a cup defined in part by the tube''s lower interior wall so as to collect fluid flowing on the wall. The cup contains a small hole in its bottom surface for drainage. A sensing tube extends into the cup and is connected to switching means for sensing the presence of a predetermined fluid level in the cup and triggering an alarm in response thereto. Fluidic switching means which comprise a digital fluid amplifier are shown.
摘要:
A fluidic caliper adapted for use with a signature- or sheetcollating system, wherein the caliper is adapted to detect a malfunction in delivery of a signature by a feeder onto a collating conveyor. The caliper includes a feeler arm positionable in accordance with the feeding condition of the feeder, and a feeler arm detector having a pair of proximity sensors cooperating to produce a signal indicative of the position of the feeler arm. The caliper includes means associated with the feeler arm, which is adapted to permit the caliper to be readily adjusted in accordance with the thickness of a signature whose presence is to be detected.
摘要:
A FLUDIC DEVICE FOR MEASURING THE RATIO BY VOLUME OF TWO KNOWN GASES OR FOR DETECTING THE CONTAMINATION OF A GAS INCLUDES A FLUID AMPLIFIER OSCILLATOR CIRCUIT AND READOUT MEANS. A GASEOUS MEDIUM BENG MONITORED IS SUPPLIED AS THE POWER FLUID TO A FLUDIC OSCILLATOR WHOSE FREQUENCY IS DEPENDENT UPON THE GAS CONSTANT OF THE GAS OR GASES. A PROPORTIONAL RELATIONSHIP EXISTS BETWEEN OSCILLATOR FREQUENCY AND GAS COMPOSITION SUCH THAT A MEANS FOR READING OUT THE OSCILLATOR FREQUENCY CAN BE SCALED TO INDICATE THE PERCENT BY VOLUME OF TWO KNOWN GASES.