New HbD333 Submersible Pump Ice Machine Cold Fan Air

Instrument, a general term for instruments that display numerical values, including pressure instruments, flow meters, and various analytical instruments.

In engineering, instrument performance indicators are usually described by precision (also known as precision), variation, and sensitivity. Instrument calibration instruments are usually calibrated for accuracy, variation, and sensitivity. Variation refers to the maximum difference between the indicated values of an instrument when the measured variable (which can be understood as an input signal) reaches the same value multiple times from different directions. In other words, it refers to the degree to which the measured parameter changes from small to large (positive characteristic) and from large to small (negative characteristic) when the external conditions remain unchanged. The difference between the two is called instrument variation. The magnitude of variation is taken as the percentage of the ratio of the maximum absolute error to the range of the instrument scale:

The main reasons for the variation are the clearance of the instrument moving mechanism, friction of moving parts, and hysteresis of elastic components. With the continuous improvement of instrument manufacturing technology, especially the introduction of microelectronics technology, many instruments have become fully electronic, without movable components, analog instruments have been changed to digital instruments, and so on. Therefore, the indicator of deterioration is not so important and prominent in intelligent instruments.

Sensitivity refers to the sensitivity of an instrument to changes in the measured parameters, or in other words, its ability to respond to changes in the measured quantity. It is the ratio of the output change increment to the input change increment under steady-state conditions:

Sensitivity, also known as amplification ratio, is the slope of each point on the tangent line of the instrument's static characteristics. Increasing the amplification factor can improve the sensitivity of the instrument. Simply increasing the sensitivity does not change the basic performance of the instrument, that is, the accuracy of the instrument does not improve. On the contrary, oscillation may sometimes occur, causing unstable output. The sensitivity of the instrument should be maintained at an appropriate level.

However, for instrument users, such as instrument workers in chemical enterprises, instrument accuracy is certainly an important indicator. However, in practical use, more emphasis is often placed on the stability and reliability of instruments, because chemical enterprise testing and process control instruments are used for measurement in small quantities, while a large number are used for testing. In addition, the stability and reliability of detection instruments used in process control systems are more important than accuracy.

Output Type:-

Diy Supplies:Electrical

We confidently assure you'll be satisfied with what you get.However, If  there's a chance that you are not satisfied with our goods or something else, please let us know before leaving us a Negative feedback. We will try our best for 100% customer satisfaction. Your 5-Star Positive Feedback is much appreciated to us, and your satisfaction is our greatest motivation to move forward.Welcome to Shop Here! Want more Items? Please come & visit our SHOP.

*Shipping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 5 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer).Your satisfaction is our first priority.

*If you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.