Answer / aftab ahmed mazari

There are mostly two types of magnetic pickups for speed
measuring.
1. Passive sensor
2. Actice sensor
In active sensor, hall effect is used to get frequency
signal.

Answer / mithilesh kumar

in power plant it's used for turbine speed(RPM).

Anybody know how to create a ladder programme for power switch in TV remote without using counter... ie TV can be turn on and turn off using single push button switch... on pressing the switch first time TV turn on and hold the on state till i press the switch again, and after TV turn off.

2 Answers  

---

what type problems create in radar level transmeter and what is its solution

2 Answers   Essar,

---

in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?

0 Answers  

---

What is the minimum rating availalbe for weld neck orifice in market?

0 Answers   Jindal,

---

what is difference between pressure,flow and level control valve.

3 Answers  

---

---

what do you know about Foundation Fieldbus?

1 Answers   CCIE,

---

hello i'am samad.Any one Can help me! How to calibrate Vaccum Transmitter DP Type range 0 - 50 mbar abs by hand pump calibrator.

4 Answers   Bharathi Cement,

---

difference between span and range

3 Answers   IOCL,

---

what is diffrence between cascade & three element system.

3 Answers  

---

What is the use of +/- 20ma in analog measurement,and which instrument gives +/-20ma output

1 Answers  

---

Whether the DI, DOs shields can be connected with Analog Input Shield Earthpit?

0 Answers  

---

HELLO FRIENDS plz tell me which are the PROTOCOLS we are using in PLC

3 Answers  

---