Abstract: A volumetric detection system (or leak tester) is disclosed herein. While the system can have any suitable feature, in some cases, it includes a displacement mechanism (such as a programmable stepper motor), a controllable element (such as a piston) that is coupled to the displacement mechanism, a containment chamber that receives a portion of the controllable element, a sensing unit (or sensor) that is configured to measure a backpressure from a device that is being tested, a computational unit (or processor) that is configured to determine a placement of the controllable element within the chamber, and a coupler (or attachment mechanism) that is configured to couple to the device that is to be tested. In some cases, the system functions without being coupled to a compressed air source. Other implementations are described.

Abstract: The present disclosure relates to a response prediction system that intelligently optimizes the quality of responses to a survey by predicting response quality and generating suggested changes (e.g., improving question ordering, question phrasing, question type, etc.). For example, in one or more embodiments, the response prediction system predicts response quality based on extracted survey characteristics. The response prediction system uses the predicted response quality to generate suggested changes before publishing the survey. Additionally, the response prediction system collects feedback by analyzing responses after the survey has been published to update suggested changes specific to the survey.