Range test chamber

Details Range test chamber Range test chamber

1994-06-21

1995-02-28

Williams, Hezron E.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

738656, 738659, 250221, 367 93, G01P 1300

Patent

active

053926315

ABSTRACT:
A scaled, isolated range test chamber is provided for testing motion sensors, such as ultrasonic occupancy detectors, in which the detector to be tested is mounted on a drawer and slid into an enclosed chamber. The enclosed chamber includes multiple motion simulators, such as rods rotated by stepper motors, which are controlled by computer to provide an accurate and repeatable scaled test environment. The ultrasonic radiation is concentrated by the scaled test environment to avoid testing anomalies resulting from time and temperature changes or human error factors. A master sensor is calibrated to detect the predetermined minor motion of the movement of a human hand in an arc through a discrete distance of one foot in one second. The motion simulators are adjusted to rotate through a larger arc at a closer distance to be detected by the master sensor in order to determine the equivalent simulated minor motion. Production sensors are then tested in the chamber using the simulated minor motion of the motion simulators.

REFERENCES:
patent: 2655645 (1953-10-01), Bagno
patent: 3309689 (1967-03-01), Keeney
patent: 4564756 (1986-01-01), Johnson
patent: 4569037 (1986-02-01), Seiferling
patent: 5142199 (1992-08-01), Elwell
patent: 5293097 (1994-03-01), Elwell

Affiliated with

Also associated with

Rating

Range test chamber does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Range test chamber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Range test chamber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-840288