Patent ID: 9110005
Filing Date: 2015-08-18
Classification: G01N,G01V

Abstract:
1. A stud detector comprising: a transmitting circuit having a first transmitting electrode configured transmit a first control signal, the first transmitting electrode being (i) connected to a voltage source via a galvanic isolation circuit and (ii) connected to a first signal input via a first potential-free transmission circuit, the galvanic isolation circuit being configured to galvanically isolate the voltage source from the first transmitting electrode, the first potential-free transmission circuit being configured provide the first control signal to the first transmitting electrode from the first signal input in a potential-free manner; a receiving circuit having a receiving electrode configured to receive measurement signals; and a measurement circuit configured to provide the first control signal to the first signal input of the transmitting circuit, receive the measurement signals from the receiving circuit, and detect whether a stud is present before the stud detector based on the measurement signals.