Frequency meters with automatic selection of the measurement limit are used to measure frequency input signal, which varies in a wide range. Signal (frequency meters) one most numerous groups measuring instruments that widely various fields technology. There large number meters, based on different principles. At same time, issue creating change have principle operation from well-known systems, ...

pressure and flow during the forced expiratory manoeuvre. It also breaks a fundamental law of the science of measurement: that units of measurement such as litre per minute should have an absolute definition and meaning. Finally, Dr Wright states that the resistance of the meter has a marked effect on a rigid mechanical flow generator of the type used by us. This is untrue, for our calibration ...

Abstract Position-meter and speed-meter interferometers have been analysed for detecting gravitational waves. Speed-meter is proposed to reduce the radiation pressure noise, which dominant at low frequency. We introduce concept of acceleration measurement in comparison with position speed measurement. In this paper, we describe a general derive its standard quantum limit. provide an example acc...

ACCURACY and PRECISION. Accuracy is the extent to which a measurement reflects the true value. It is the tendency of test measurement to center around the true value. "Precise" means sharply defined or measured. Data can be very precise, but inaccurate. It would be precise but inaccurate to say that a meter equals 29.3748 inches. It would actually be more accurate to say that a meter equals a l...

The Americans With Disabilities Act Compliance Assessment Toolkit (ADACAT) provides simple, pass-fail assessments of the requirements of the Americans With Disabilities Act (ADA) and other accessibility standards to assess the architectural barriers of the built environment. The ADACAT includes a Measurement Kit, which consists of various measuring instruments like, measuring tape, sound-level ...

Most of the comments on the referee's reports will not be meaningful to someone who has not read the paper, so I may as well use the notation of the paper. For the reader's convenience, it is summarized below, but most readers will probably want to skip the summary, referring back to it only if needed. Symbols in the summary (such as A, s, f , etc.) will be used in the comments without further ...

We present a Bluetooth indoor localization system, which is intended to have an accuracy of ±1 meter. The major advantage compared to all disclosed systems is the ability to locate any mobile Bluetooth device without additional hardware in the mobile and without any changes in its software. The basic idea of the system is the measurement of time differences of arrival of a signal sent by the mo...

We propose to measure the quantum state of a single mode of the radiation field in a cavity— the signal field—by coupling it via a quantum-non-demolition Hamiltonian to a meter field in a highly squeezed state. We show that quantum state tomography on the meter field using balanced homodyne detection provides full information about the signal state. We discuss the influence of measurement of th...

The measurement kit of the ADA-CAT (Americans With Disabilities Act-Compliance Assessment Toolkit) consists of measurement instruments, such as a measuring tape, a sound level meter, a light level meter, and a magic slope block. Perhaps the most important tool is the measuring tape for length and height measurement as distances are used so prolifically in the ADA assessment process. Currently, ...